Merge branch 'master' into new_scenario

author: Sree Kuchibhotla <sreek@google.com> 2016-10-17 14:15:50 -0700
committer: Sree Kuchibhotla <sreek@google.com> 2016-10-17 14:15:50 -0700
commit: 34ad82d6f683b06ecb3844769ef53784d8cba30b (patch)
tree: 27551d64348144de399c7f874adfedbf919458d3 /tools
parent: 923d641c27f0ebcceb67a28fd17168ac34e7bf5e (diff)
parent: 872559593329f1a6903d0b41f669eb4ba719dbe8 (diff)
52 files changed, 1438 insertions, 10451 deletions
diff --git a/tools/codegen/core/gen_static_metadata.py b/tools/codegen/core/gen_static_metadata.py
index 6f400102e4..6f8cad279c 100755
--- a/tools/codegen/core/gen_static_metadata.py
+++ b/tools/codegen/core/gen_static_metadata.py
@@ -109,8 +109,8 @@ CONFIG = [
     ('if-range', ''),
     ('if-unmodified-since', ''),
     ('last-modified', ''),
-    ('load-reporting-initial', ''),
-    ('load-reporting-trailing', ''),
+    ('lb-token', ''),
+    ('lb-cost', ''),
     ('link', ''),
     ('location', ''),
     ('max-forwards', ''),
diff --git a/tools/codegen/extensions/gen_reflection_proto.sh b/tools/codegen/extensions/gen_reflection_proto.sh
index bd8aac6a7b..ea7689f7e8 100755
--- a/tools/codegen/extensions/gen_reflection_proto.sh
+++ b/tools/codegen/extensions/gen_reflection_proto.sh
@@ -29,20 +29,39 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+set -e
+cd $(dirname $0)/../../..
+
 PROTO_DIR="src/proto/grpc/reflection/v1alpha"
 PROTO_FILE="reflection"
 HEADER_DIR="include/grpc++/ext"
 SRC_DIR="src/cpp/ext"
 INCLUDE_DIR="grpc++/ext"
 TMP_DIR="tmp"
-GRPC_PLUGIN="bins/opt/grpc_cpp_plugin"
-PROTOC="bins/opt/protobuf/protoc"
 
-set -e
+if hash grpc_cpp_plugin 2>/dev/null; then
+  GRPC_PLUGIN=$(which grpc_cpp_plugin)
+else
+  if [ -f bins/opt/grpc_cpp_plugin ]; then
+    GRPC_PLUGIN="bins/opt/grpc_cpp_plugin"
+  else
+    echo "gRPC protoc plugin not found"
+    exit 1
+  fi
+fi
 
-TMP_DIR=${TMP_DIR}_${PROTO_FILE}
+if hash protoc 2>/dev/null; then
+  PROTOC=$(which protoc)
+else
+  if [ -f bins/opt/protobuf/protoc ]; then
+    PROTOC="bins/opt/protobuf/protoc"
+  else
+    echo "protoc not found"
+    exit 1
+  fi
+fi
 
-cd $(dirname $0)/../../..
+TMP_DIR=${TMP_DIR}_${PROTO_FILE}
 
 [ ! -d $HEADER_DIR ] && mkdir -p $HEADER_DIR || :
 [ ! -d $SRC_DIR ] && mkdir -p $SRC_DIR || :
@@ -56,6 +75,9 @@ sed -i "s/\"${PROTO_FILE}.pb.h\"/<${INCLUDE_DIR/\//\\\/}\/${PROTO_FILE}.pb.h>/g"
 sed -i "s/\"${PROTO_FILE}.pb.h\"/<${INCLUDE_DIR/\//\\\/}\/${PROTO_FILE}.pb.h>/g" ${TMP_DIR}/${PROTO_FILE}.grpc.pb.cc
 sed -i "s/\"${PROTO_FILE}.grpc.pb.h\"/<${INCLUDE_DIR/\//\\\/}\/${PROTO_FILE}.grpc.pb.h>/g" ${TMP_DIR}/${PROTO_FILE}.grpc.pb.cc
 
+sed -i "1s/.*/\/\/ Generated by tools\/codegen\/extensions\/gen_reflection_proto.sh/g" ${TMP_DIR}/*.pb.h
+sed -i "1s/.*/\/\/ Generated by tools\/codegen\/extensions\/gen_reflection_proto.sh/g" ${TMP_DIR}/*.pb.cc
+
 /bin/cp LICENSE ${TMP_DIR}/TMP_LICENSE
 sed -i -e "s/./ &/" -e "s/.*/ \*&/" ${TMP_DIR}/TMP_LICENSE
 sed -i -r "\$a\ *\n *\/\n\n"  ${TMP_DIR}/TMP_LICENSE
diff --git a/tools/distrib/python/grpcio_tools/protoc_lib_deps.py b/tools/distrib/python/grpcio_tools/protoc_lib_deps.py
index cd4effa7ae..569328e57e 100644
--- a/tools/distrib/python/grpcio_tools/protoc_lib_deps.py
+++ b/tools/distrib/python/grpcio_tools/protoc_lib_deps.py
@@ -29,7 +29,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # AUTO-GENERATED BY make_grpcio_tools.py!
-CC_FILES=['google/protobuf/compiler/zip_writer.cc', 'google/protobuf/compiler/subprocess.cc', 'google/protobuf/compiler/ruby/ruby_generator.cc', 'google/protobuf/compiler/python/python_generator.cc', 'google/protobuf/compiler/plugin.pb.cc', 'google/protobuf/compiler/plugin.cc', 'google/protobuf/compiler/objectivec/objectivec_primitive_field.cc', 'google/protobuf/compiler/objectivec/objectivec_oneof.cc', 'google/protobuf/compiler/objectivec/objectivec_message_field.cc', 'google/protobuf/compiler/objectivec/objectivec_message.cc', 'google/protobuf/compiler/objectivec/objectivec_map_field.cc', 'google/protobuf/compiler/objectivec/objectivec_helpers.cc', 'google/protobuf/compiler/objectivec/objectivec_generator.cc', 'google/protobuf/compiler/objectivec/objectivec_file.cc', 'google/protobuf/compiler/objectivec/objectivec_field.cc', 'google/protobuf/compiler/objectivec/objectivec_extension.cc', 'google/protobuf/compiler/objectivec/objectivec_enum_field.cc', 'google/protobuf/compiler/objectivec/objectivec_enum.cc', 'google/protobuf/compiler/js/js_generator.cc', 'google/protobuf/compiler/javanano/javanano_primitive_field.cc', 'google/protobuf/compiler/javanano/javanano_message_field.cc', 'google/protobuf/compiler/javanano/javanano_message.cc', 'google/protobuf/compiler/javanano/javanano_map_field.cc', 'google/protobuf/compiler/javanano/javanano_helpers.cc', 'google/protobuf/compiler/javanano/javanano_generator.cc', 'google/protobuf/compiler/javanano/javanano_file.cc', 'google/protobuf/compiler/javanano/javanano_field.cc', 'google/protobuf/compiler/javanano/javanano_extension.cc', 'google/protobuf/compiler/javanano/javanano_enum_field.cc', 'google/protobuf/compiler/javanano/javanano_enum.cc', 'google/protobuf/compiler/java/java_string_field_lite.cc', 'google/protobuf/compiler/java/java_string_field.cc', 'google/protobuf/compiler/java/java_shared_code_generator.cc', 'google/protobuf/compiler/java/java_service.cc', 'google/protobuf/compiler/java/java_primitive_field_lite.cc', 'google/protobuf/compiler/java/java_primitive_field.cc', 'google/protobuf/compiler/java/java_name_resolver.cc', 'google/protobuf/compiler/java/java_message_lite.cc', 'google/protobuf/compiler/java/java_message_field_lite.cc', 'google/protobuf/compiler/java/java_message_field.cc', 'google/protobuf/compiler/java/java_message_builder_lite.cc', 'google/protobuf/compiler/java/java_message_builder.cc', 'google/protobuf/compiler/java/java_message.cc', 'google/protobuf/compiler/java/java_map_field_lite.cc', 'google/protobuf/compiler/java/java_map_field.cc', 'google/protobuf/compiler/java/java_lazy_message_field_lite.cc', 'google/protobuf/compiler/java/java_lazy_message_field.cc', 'google/protobuf/compiler/java/java_helpers.cc', 'google/protobuf/compiler/java/java_generator_factory.cc', 'google/protobuf/compiler/java/java_generator.cc', 'google/protobuf/compiler/java/java_file.cc', 'google/protobuf/compiler/java/java_field.cc', 'google/protobuf/compiler/java/java_extension_lite.cc', 'google/protobuf/compiler/java/java_extension.cc', 'google/protobuf/compiler/java/java_enum_lite.cc', 'google/protobuf/compiler/java/java_enum_field_lite.cc', 'google/protobuf/compiler/java/java_enum_field.cc', 'google/protobuf/compiler/java/java_enum.cc', 'google/protobuf/compiler/java/java_doc_comment.cc', 'google/protobuf/compiler/java/java_context.cc', 'google/protobuf/compiler/csharp/csharp_wrapper_field.cc', 'google/protobuf/compiler/csharp/csharp_source_generator_base.cc', 'google/protobuf/compiler/csharp/csharp_repeated_primitive_field.cc', 'google/protobuf/compiler/csharp/csharp_repeated_message_field.cc', 'google/protobuf/compiler/csharp/csharp_repeated_enum_field.cc', 'google/protobuf/compiler/csharp/csharp_reflection_class.cc', 'google/protobuf/compiler/csharp/csharp_primitive_field.cc', 'google/protobuf/compiler/csharp/csharp_message_field.cc', 'google/protobuf/compiler/csharp/csharp_message.cc', 'google/protobuf/compiler/csharp/csharp_map_field.cc', 'google/protobuf/compiler/csharp/csharp_helpers.cc', 'google/protobuf/compiler/csharp/csharp_generator.cc', 'google/protobuf/compiler/csharp/csharp_field_base.cc', 'google/protobuf/compiler/csharp/csharp_enum_field.cc', 'google/protobuf/compiler/csharp/csharp_enum.cc', 'google/protobuf/compiler/csharp/csharp_doc_comment.cc', 'google/protobuf/compiler/cpp/cpp_string_field.cc', 'google/protobuf/compiler/cpp/cpp_service.cc', 'google/protobuf/compiler/cpp/cpp_primitive_field.cc', 'google/protobuf/compiler/cpp/cpp_message_field.cc', 'google/protobuf/compiler/cpp/cpp_message.cc', 'google/protobuf/compiler/cpp/cpp_map_field.cc', 'google/protobuf/compiler/cpp/cpp_helpers.cc', 'google/protobuf/compiler/cpp/cpp_generator.cc', 'google/protobuf/compiler/cpp/cpp_file.cc', 'google/protobuf/compiler/cpp/cpp_field.cc', 'google/protobuf/compiler/cpp/cpp_extension.cc', 'google/protobuf/compiler/cpp/cpp_enum_field.cc', 'google/protobuf/compiler/cpp/cpp_enum.cc', 'google/protobuf/compiler/command_line_interface.cc', 'google/protobuf/compiler/code_generator.cc', 'google/protobuf/wrappers.pb.cc', 'google/protobuf/wire_format.cc', 'google/protobuf/util/type_resolver_util.cc', 'google/protobuf/util/time_util.cc', 'google/protobuf/util/message_differencer.cc', 'google/protobuf/util/json_util.cc', 'google/protobuf/util/internal/utility.cc', 'google/protobuf/util/internal/type_info_test_helper.cc', 'google/protobuf/util/internal/type_info.cc', 'google/protobuf/util/internal/protostream_objectwriter.cc', 'google/protobuf/util/internal/protostream_objectsource.cc', 'google/protobuf/util/internal/proto_writer.cc', 'google/protobuf/util/internal/object_writer.cc', 'google/protobuf/util/internal/json_stream_parser.cc', 'google/protobuf/util/internal/json_objectwriter.cc', 'google/protobuf/util/internal/json_escaping.cc', 'google/protobuf/util/internal/field_mask_utility.cc', 'google/protobuf/util/internal/error_listener.cc', 'google/protobuf/util/internal/default_value_objectwriter.cc', 'google/protobuf/util/internal/datapiece.cc', 'google/protobuf/util/field_mask_util.cc', 'google/protobuf/util/field_comparator.cc', 'google/protobuf/unknown_field_set.cc', 'google/protobuf/type.pb.cc', 'google/protobuf/timestamp.pb.cc', 'google/protobuf/text_format.cc', 'google/protobuf/stubs/substitute.cc', 'google/protobuf/stubs/mathlimits.cc', 'google/protobuf/struct.pb.cc', 'google/protobuf/source_context.pb.cc', 'google/protobuf/service.cc', 'google/protobuf/reflection_ops.cc', 'google/protobuf/message.cc', 'google/protobuf/map_field.cc', 'google/protobuf/io/zero_copy_stream_impl.cc', 'google/protobuf/io/tokenizer.cc', 'google/protobuf/io/strtod.cc', 'google/protobuf/io/printer.cc', 'google/protobuf/io/gzip_stream.cc', 'google/protobuf/generated_message_reflection.cc', 'google/protobuf/field_mask.pb.cc', 'google/protobuf/extension_set_heavy.cc', 'google/protobuf/empty.pb.cc', 'google/protobuf/dynamic_message.cc', 'google/protobuf/duration.pb.cc', 'google/protobuf/descriptor_database.cc', 'google/protobuf/descriptor.pb.cc', 'google/protobuf/descriptor.cc', 'google/protobuf/compiler/parser.cc', 'google/protobuf/compiler/importer.cc', 'google/protobuf/api.pb.cc', 'google/protobuf/any.pb.cc', 'google/protobuf/any.cc', 'google/protobuf/wire_format_lite.cc', 'google/protobuf/stubs/time.cc', 'google/protobuf/stubs/strutil.cc', 'google/protobuf/stubs/structurally_valid.cc', 'google/protobuf/stubs/stringprintf.cc', 'google/protobuf/stubs/stringpiece.cc', 'google/protobuf/stubs/statusor.cc', 'google/protobuf/stubs/status.cc', 'google/protobuf/stubs/once.cc', 'google/protobuf/stubs/int128.cc', 'google/protobuf/stubs/common.cc', 'google/protobuf/stubs/bytestream.cc', 'google/protobuf/stubs/atomicops_internals_x86_msvc.cc', 'google/protobuf/stubs/atomicops_internals_x86_gcc.cc', 'google/protobuf/repeated_field.cc', 'google/protobuf/message_lite.cc', 'google/protobuf/io/zero_copy_stream_impl_lite.cc', 'google/protobuf/io/zero_copy_stream.cc', 'google/protobuf/io/coded_stream.cc', 'google/protobuf/generated_message_util.cc', 'google/protobuf/extension_set.cc', 'google/protobuf/arenastring.cc', 'google/protobuf/arena.cc']
+CC_FILES=['google/protobuf/compiler/zip_writer.cc', 'google/protobuf/compiler/subprocess.cc', 'google/protobuf/compiler/ruby/ruby_generator.cc', 'google/protobuf/compiler/python/python_generator.cc', 'google/protobuf/compiler/plugin.pb.cc', 'google/protobuf/compiler/plugin.cc', 'google/protobuf/compiler/php/php_generator.cc', 'google/protobuf/compiler/objectivec/objectivec_primitive_field.cc', 'google/protobuf/compiler/objectivec/objectivec_oneof.cc', 'google/protobuf/compiler/objectivec/objectivec_message_field.cc', 'google/protobuf/compiler/objectivec/objectivec_message.cc', 'google/protobuf/compiler/objectivec/objectivec_map_field.cc', 'google/protobuf/compiler/objectivec/objectivec_helpers.cc', 'google/protobuf/compiler/objectivec/objectivec_generator.cc', 'google/protobuf/compiler/objectivec/objectivec_file.cc', 'google/protobuf/compiler/objectivec/objectivec_field.cc', 'google/protobuf/compiler/objectivec/objectivec_extension.cc', 'google/protobuf/compiler/objectivec/objectivec_enum_field.cc', 'google/protobuf/compiler/objectivec/objectivec_enum.cc', 'google/protobuf/compiler/js/js_generator.cc', 'google/protobuf/compiler/javanano/javanano_primitive_field.cc', 'google/protobuf/compiler/javanano/javanano_message_field.cc', 'google/protobuf/compiler/javanano/javanano_message.cc', 'google/protobuf/compiler/javanano/javanano_map_field.cc', 'google/protobuf/compiler/javanano/javanano_helpers.cc', 'google/protobuf/compiler/javanano/javanano_generator.cc', 'google/protobuf/compiler/javanano/javanano_file.cc', 'google/protobuf/compiler/javanano/javanano_field.cc', 'google/protobuf/compiler/javanano/javanano_extension.cc', 'google/protobuf/compiler/javanano/javanano_enum_field.cc', 'google/protobuf/compiler/javanano/javanano_enum.cc', 'google/protobuf/compiler/java/java_string_field_lite.cc', 'google/protobuf/compiler/java/java_string_field.cc', 'google/protobuf/compiler/java/java_shared_code_generator.cc', 'google/protobuf/compiler/java/java_service.cc', 'google/protobuf/compiler/java/java_primitive_field_lite.cc', 'google/protobuf/compiler/java/java_primitive_field.cc', 'google/protobuf/compiler/java/java_name_resolver.cc', 'google/protobuf/compiler/java/java_message_lite.cc', 'google/protobuf/compiler/java/java_message_field_lite.cc', 'google/protobuf/compiler/java/java_message_field.cc', 'google/protobuf/compiler/java/java_message_builder_lite.cc', 'google/protobuf/compiler/java/java_message_builder.cc', 'google/protobuf/compiler/java/java_message.cc', 'google/protobuf/compiler/java/java_map_field_lite.cc', 'google/protobuf/compiler/java/java_map_field.cc', 'google/protobuf/compiler/java/java_lazy_message_field_lite.cc', 'google/protobuf/compiler/java/java_lazy_message_field.cc', 'google/protobuf/compiler/java/java_helpers.cc', 'google/protobuf/compiler/java/java_generator_factory.cc', 'google/protobuf/compiler/java/java_generator.cc', 'google/protobuf/compiler/java/java_file.cc', 'google/protobuf/compiler/java/java_field.cc', 'google/protobuf/compiler/java/java_extension_lite.cc', 'google/protobuf/compiler/java/java_extension.cc', 'google/protobuf/compiler/java/java_enum_lite.cc', 'google/protobuf/compiler/java/java_enum_field_lite.cc', 'google/protobuf/compiler/java/java_enum_field.cc', 'google/protobuf/compiler/java/java_enum.cc', 'google/protobuf/compiler/java/java_doc_comment.cc', 'google/protobuf/compiler/java/java_context.cc', 'google/protobuf/compiler/csharp/csharp_wrapper_field.cc', 'google/protobuf/compiler/csharp/csharp_source_generator_base.cc', 'google/protobuf/compiler/csharp/csharp_repeated_primitive_field.cc', 'google/protobuf/compiler/csharp/csharp_repeated_message_field.cc', 'google/protobuf/compiler/csharp/csharp_repeated_enum_field.cc', 'google/protobuf/compiler/csharp/csharp_reflection_class.cc', 'google/protobuf/compiler/csharp/csharp_primitive_field.cc', 'google/protobuf/compiler/csharp/csharp_message_field.cc', 'google/protobuf/compiler/csharp/csharp_message.cc', 'google/protobuf/compiler/csharp/csharp_map_field.cc', 'google/protobuf/compiler/csharp/csharp_helpers.cc', 'google/protobuf/compiler/csharp/csharp_generator.cc', 'google/protobuf/compiler/csharp/csharp_field_base.cc', 'google/protobuf/compiler/csharp/csharp_enum_field.cc', 'google/protobuf/compiler/csharp/csharp_enum.cc', 'google/protobuf/compiler/csharp/csharp_doc_comment.cc', 'google/protobuf/compiler/cpp/cpp_string_field.cc', 'google/protobuf/compiler/cpp/cpp_service.cc', 'google/protobuf/compiler/cpp/cpp_primitive_field.cc', 'google/protobuf/compiler/cpp/cpp_message_field.cc', 'google/protobuf/compiler/cpp/cpp_message.cc', 'google/protobuf/compiler/cpp/cpp_map_field.cc', 'google/protobuf/compiler/cpp/cpp_helpers.cc', 'google/protobuf/compiler/cpp/cpp_generator.cc', 'google/protobuf/compiler/cpp/cpp_file.cc', 'google/protobuf/compiler/cpp/cpp_field.cc', 'google/protobuf/compiler/cpp/cpp_extension.cc', 'google/protobuf/compiler/cpp/cpp_enum_field.cc', 'google/protobuf/compiler/cpp/cpp_enum.cc', 'google/protobuf/compiler/command_line_interface.cc', 'google/protobuf/compiler/code_generator.cc', 'google/protobuf/wrappers.pb.cc', 'google/protobuf/wire_format.cc', 'google/protobuf/util/type_resolver_util.cc', 'google/protobuf/util/time_util.cc', 'google/protobuf/util/message_differencer.cc', 'google/protobuf/util/json_util.cc', 'google/protobuf/util/internal/utility.cc', 'google/protobuf/util/internal/type_info_test_helper.cc', 'google/protobuf/util/internal/type_info.cc', 'google/protobuf/util/internal/protostream_objectwriter.cc', 'google/protobuf/util/internal/protostream_objectsource.cc', 'google/protobuf/util/internal/proto_writer.cc', 'google/protobuf/util/internal/object_writer.cc', 'google/protobuf/util/internal/json_stream_parser.cc', 'google/protobuf/util/internal/json_objectwriter.cc', 'google/protobuf/util/internal/json_escaping.cc', 'google/protobuf/util/internal/field_mask_utility.cc', 'google/protobuf/util/internal/error_listener.cc', 'google/protobuf/util/internal/default_value_objectwriter.cc', 'google/protobuf/util/internal/datapiece.cc', 'google/protobuf/util/field_mask_util.cc', 'google/protobuf/util/field_comparator.cc', 'google/protobuf/unknown_field_set.cc', 'google/protobuf/type.pb.cc', 'google/protobuf/timestamp.pb.cc', 'google/protobuf/text_format.cc', 'google/protobuf/stubs/substitute.cc', 'google/protobuf/stubs/mathlimits.cc', 'google/protobuf/struct.pb.cc', 'google/protobuf/source_context.pb.cc', 'google/protobuf/service.cc', 'google/protobuf/reflection_ops.cc', 'google/protobuf/message.cc', 'google/protobuf/map_field.cc', 'google/protobuf/io/zero_copy_stream_impl.cc', 'google/protobuf/io/tokenizer.cc', 'google/protobuf/io/strtod.cc', 'google/protobuf/io/printer.cc', 'google/protobuf/io/gzip_stream.cc', 'google/protobuf/generated_message_reflection.cc', 'google/protobuf/field_mask.pb.cc', 'google/protobuf/extension_set_heavy.cc', 'google/protobuf/empty.pb.cc', 'google/protobuf/dynamic_message.cc', 'google/protobuf/duration.pb.cc', 'google/protobuf/descriptor_database.cc', 'google/protobuf/descriptor.pb.cc', 'google/protobuf/descriptor.cc', 'google/protobuf/compiler/parser.cc', 'google/protobuf/compiler/importer.cc', 'google/protobuf/api.pb.cc', 'google/protobuf/any.pb.cc', 'google/protobuf/any.cc', 'google/protobuf/wire_format_lite.cc', 'google/protobuf/stubs/time.cc', 'google/protobuf/stubs/strutil.cc', 'google/protobuf/stubs/structurally_valid.cc', 'google/protobuf/stubs/stringprintf.cc', 'google/protobuf/stubs/stringpiece.cc', 'google/protobuf/stubs/statusor.cc', 'google/protobuf/stubs/status.cc', 'google/protobuf/stubs/once.cc', 'google/protobuf/stubs/int128.cc', 'google/protobuf/stubs/common.cc', 'google/protobuf/stubs/bytestream.cc', 'google/protobuf/stubs/atomicops_internals_x86_msvc.cc', 'google/protobuf/stubs/atomicops_internals_x86_gcc.cc', 'google/protobuf/repeated_field.cc', 'google/protobuf/message_lite.cc', 'google/protobuf/io/zero_copy_stream_impl_lite.cc', 'google/protobuf/io/zero_copy_stream.cc', 'google/protobuf/io/coded_stream.cc', 'google/protobuf/generated_message_util.cc', 'google/protobuf/extension_set.cc', 'google/protobuf/arenastring.cc', 'google/protobuf/arena.cc']
 PROTO_FILES=['google/protobuf/wrappers.proto', 'google/protobuf/type.proto', 'google/protobuf/timestamp.proto', 'google/protobuf/struct.proto', 'google/protobuf/source_context.proto', 'google/protobuf/field_mask.proto', 'google/protobuf/empty.proto', 'google/protobuf/duration.proto', 'google/protobuf/descriptor.proto', 'google/protobuf/compiler/plugin.proto', 'google/protobuf/api.proto', 'google/protobuf/any.proto']
 
 CC_INCLUDE='third_party/protobuf/src'
diff --git a/tools/dockerfile/distribtest/csharp_centos7_x64/Dockerfile b/tools/dockerfile/distribtest/csharp_centos7_x64/Dockerfile
index 6584845721..c8b5daaff9 100644
--- a/tools/dockerfile/distribtest/csharp_centos7_x64/Dockerfile
+++ b/tools/dockerfile/distribtest/csharp_centos7_x64/Dockerfile
@@ -33,7 +33,17 @@ RUN rpm --import "http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E03
 RUN yum-config-manager --add-repo http://download.mono-project.com/repo/centos/
 
 RUN yum install -y mono
+
 RUN yum install -y unzip
 
 # --nogpgcheck because nuget-2.12 package is not signed.
 RUN yum install -y nuget --nogpgcheck
+
+# Help mono correctly locate libMonoPosixHelper.so
+# as a workaround for issue https://bugzilla.xamarin.com/show_bug.cgi?id=42820
+# The error message you'll get without this workaround:
+# ```
+# WARNING: /usr/lib/libMonoPosixHelper.so
+# WARNING: Unable to read package from path 'Grpc.1.1.0-dev.nupkg'.
+# ```
+RUN cp /usr/lib64/libMonoPosixHelper.so /usr/lib/
diff --git a/tools/dockerfile/distribtest/csharp_ubuntu1404_x64/Dockerfile b/tools/dockerfile/distribtest/csharp_ubuntu1404_x64/Dockerfile
index 1f9a42e13f..ed6d87b228 100644
--- a/tools/dockerfile/distribtest/csharp_ubuntu1404_x64/Dockerfile
+++ b/tools/dockerfile/distribtest/csharp_ubuntu1404_x64/Dockerfile
@@ -54,7 +54,3 @@ RUN mkdir warmup \
     && dotnet new \
     && cd .. \
     && rm -rf warmup
-
-# TODO(jtattermusch): without libc-dev, netcoreapp1.0 targets fail with
-# System.DllNotFoundException: Unable to load DLL 'libdl.so'
-RUN apt-get install -y libc-dev
-\ No newline at end of file
diff --git a/tools/dockerfile/grpc_check_generated_pb_files/check_pb_files.sh b/tools/dockerfile/grpc_check_generated_pb_files/check_pb_files.sh
index 62e41755ec..9db7aae9eb 100755
--- a/tools/dockerfile/grpc_check_generated_pb_files/check_pb_files.sh
+++ b/tools/dockerfile/grpc_check_generated_pb_files/check_pb_files.sh
@@ -31,7 +31,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 cd /var/local/git/grpc
 
diff --git a/tools/dockerfile/interoptest/grpc_interop_csharp/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_csharp/build_interop.sh
index fd5436c44f..e37070904d 100755
--- a/tools/dockerfile/interoptest/grpc_interop_csharp/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_csharp/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_csharpcoreclr/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_csharpcoreclr/build_interop.sh
index 77cd65cce3..d90c899569 100755
--- a/tools/dockerfile/interoptest/grpc_interop_csharpcoreclr/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_csharpcoreclr/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_cxx/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_cxx/build_interop.sh
index 1c0828d23a..7a7ca0d3d1 100755
--- a/tools/dockerfile/interoptest/grpc_interop_cxx/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_cxx/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
index 1fd088322c..858ee0a68c 100755
--- a/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_go/build_interop.sh
@@ -36,19 +36,12 @@ set -e
 # to test instead of using "go get" to download from Github directly.
 git clone --recursive /var/local/jenkins/grpc-go src/google.golang.org/grpc
 
+# Get all gRPC Go dependencies
+(cd src/google.golang.org/grpc && go get -t .)
+
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
 
-# Get dependencies from GitHub
-# NOTE: once grpc-go dependencies change, this needs to be updated manually
-# but we don't expect this to happen any time soon.
-go get github.com/golang/protobuf/proto
-go get golang.org/x/net/context
-go get golang.org/x/net/trace
-go get golang.org/x/oauth2
-go get golang.org/x/oauth2/google
-go get google.golang.org/cloud
-
 # Build the interop client and server
 (cd src/google.golang.org/grpc/interop/client && go install)
 (cd src/google.golang.org/grpc/interop/server && go install)
diff --git a/tools/dockerfile/interoptest/grpc_interop_http2/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_http2/build_interop.sh
index 46ddaf929a..a1d668d69f 100755
--- a/tools/dockerfile/interoptest/grpc_interop_http2/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_http2/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_node/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_node/build_interop.sh
index 976f55d9ab..4116f842ff 100755
--- a/tools/dockerfile/interoptest/grpc_interop_node/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_node/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_php/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_php/Dockerfile
index 0d6171c170..d0e1a96553 100644
--- a/tools/dockerfile/interoptest/grpc_interop_php/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_php/Dockerfile
@@ -63,21 +63,6 @@ RUN apt-get update && apt-get install -y \
 # Build profiling
 RUN apt-get update && apt-get install -y time && apt-get clean
 
-#==================
-# Ruby dependencies
-
-# Install rvm
-RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
-RUN \curl -sSL https://get.rvm.io | bash -s stable
-
-# Install Ruby 2.1
-RUN /bin/bash -l -c "rvm install ruby-2.1"
-RUN /bin/bash -l -c "rvm use --default ruby-2.1"
-RUN /bin/bash -l -c "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"
-RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
-RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.1' >> ~/.bashrc"
-RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"
-
 #=================
 # PHP dependencies
 
@@ -97,25 +82,10 @@ RUN ln -s /usr/bin/ccache /usr/local/bin/clang++
 
 RUN mkdir /var/local/jenkins
 
-# ronn: a ruby tool used to convert markdown to man pages, used during the
-# install of Protobuf extensions
-#
-# rake: a ruby version of make used to build the PHP Protobuf extension
-RUN /bin/bash -l -c "rvm all do gem install ronn rake"
-
 # Install composer
 RUN curl -sS https://getcomposer.org/installer | php
 RUN mv composer.phar /usr/local/bin/composer
 
-# Download the patched PHP protobuf so that PHP gRPC clients can be generated
-# from proto3 schemas.
-RUN git clone https://github.com/stanley-cheung/Protobuf-PHP.git /var/local/git/protobuf-php
-
-RUN /bin/bash -l -c "rvm use ruby-2.1 \
-  && cd /var/local/git/protobuf-php \
-  && rvm all do rake pear:package version=1.0 \
-  && pear install Protobuf-1.0.tgz"
-
 # Define the default command.
 CMD ["bash"]
 
diff --git a/tools/dockerfile/interoptest/grpc_interop_php/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_php/build_interop.sh
index a84a450221..d64ec7903f 100755
--- a/tools/dockerfile/interoptest/grpc_interop_php/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_php/build_interop.sh
@@ -32,13 +32,16 @@
 set -ex
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc
-rvm --default use ruby-2.1
 
 # gRPC core and protobuf need to be installed
 make install
@@ -47,6 +50,6 @@ make install
 
 (cd third_party/protobuf && make install)
 
-(cd src/php && composer install)
+(cd src/php && php -d extension=ext/grpc/modules/grpc.so /usr/local/bin/composer install)
 
-(cd src/php && protoc-gen-php -i tests/interop/ -o tests/interop/ tests/interop/test.proto)
+(cd src/php && ./bin/generate_proto_php.sh)
diff --git a/tools/dockerfile/interoptest/grpc_interop_php7/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_php7/Dockerfile
index be8f25f8ff..d8cbe7093c 100644
--- a/tools/dockerfile/interoptest/grpc_interop_php7/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_php7/Dockerfile
@@ -75,21 +75,6 @@ RUN cd /var/local/git/php-src \
   && make \
   && make install
 
-#==================
-# Ruby dependencies
-
-# Install rvm
-RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
-RUN \curl -sSL https://get.rvm.io | bash -s stable
-
-# Install Ruby 2.1
-RUN /bin/bash -l -c "rvm install ruby-2.1"
-RUN /bin/bash -l -c "rvm use --default ruby-2.1"
-RUN /bin/bash -l -c "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"
-RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
-RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.1' >> ~/.bashrc"
-RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"
-
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++
@@ -101,25 +86,10 @@ RUN ln -s /usr/bin/ccache /usr/local/bin/clang++
 
 RUN mkdir /var/local/jenkins
 
-# ronn: a ruby tool used to convert markdown to man pages, used during the
-# install of Protobuf extensions
-#
-# rake: a ruby version of make used to build the PHP Protobuf extension
-RUN /bin/bash -l -c "rvm all do gem install ronn rake"
-
 # Install composer
 RUN curl -sS https://getcomposer.org/installer | php
 RUN mv composer.phar /usr/local/bin/composer
 
-# Download the patched PHP protobuf so that PHP gRPC clients can be generated
-# from proto3 schemas.
-RUN git clone https://github.com/stanley-cheung/Protobuf-PHP.git /var/local/git/protobuf-php
-
-RUN /bin/bash -l -c "rvm use ruby-2.1 \
-  && cd /var/local/git/protobuf-php \
-  && rvm all do rake pear:package version=1.0 \
-  && pear install Protobuf-1.0.tgz"
-
 # Define the default command.
 CMD ["bash"]
 
diff --git a/tools/dockerfile/interoptest/grpc_interop_php7/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_php7/build_interop.sh
index 261dded282..fccca4d695 100755
--- a/tools/dockerfile/interoptest/grpc_interop_php7/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_php7/build_interop.sh
@@ -32,13 +32,16 @@
 set -ex
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc
-rvm --default use ruby-2.1
 
 # gRPC core and protobuf need to be installed
 make install
@@ -47,6 +50,6 @@ make install
 
 (cd third_party/protobuf && make install)
 
-(cd src/php && composer install)
+(cd src/php && php -d extension=ext/grpc/modules/grpc.so /usr/local/bin/composer install)
 
-(cd src/php && protoc-gen-php -i tests/interop/ -o tests/interop/ tests/interop/test.proto)
+(cd src/php && ./bin/generate_proto_php.sh)
diff --git a/tools/dockerfile/interoptest/grpc_interop_python/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_python/build_interop.sh
index f29c59da8e..a6f8c7bfe6 100755
--- a/tools/dockerfile/interoptest/grpc_interop_python/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_python/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/interoptest/grpc_interop_ruby/build_interop.sh b/tools/dockerfile/interoptest/grpc_interop_ruby/build_interop.sh
index 97b3860f98..6cd2fa2b14 100755
--- a/tools/dockerfile/interoptest/grpc_interop_ruby/build_interop.sh
+++ b/tools/dockerfile/interoptest/grpc_interop_ruby/build_interop.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_csharp/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_csharp/build_interop_stress.sh
index 1f4bf893cc..345196894e 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_csharp/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_csharp/build_interop_stress.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # Copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_cxx/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_cxx/build_interop_stress.sh
index b67b1a1664..92d1f80fe6 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_cxx/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_cxx/build_interop_stress.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_go/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_go/build_interop_stress.sh
index 919d885c17..9e4769cf33 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_go/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_go/build_interop_stress.sh
@@ -38,7 +38,11 @@ git clone --recursive /var/local/jenkins/grpc-go src/google.golang.org/grpc
 
 # Clone the 'grpc' repo. We just need this for the wrapper scripts under
 # grpc/tools/gcp/stress_tests
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_java/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_java/build_interop_stress.sh
index d4fdfbbac9..0194860d10 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_java/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_java/build_interop_stress.sh
@@ -36,7 +36,11 @@ mkdir -p /var/local/git
 git clone --recursive --depth 1 /var/local/jenkins/grpc-java /var/local/git/grpc-java
 
 # grpc repo (for metrics client and for the stress test wrapper scripts)
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # Copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_node/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_node/build_interop_stress.sh
index 976f55d9ab..4116f842ff 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_node/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_node/build_interop_stress.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_php/Dockerfile b/tools/dockerfile/stress_test/grpc_interop_stress_php/Dockerfile
index 0716be5a9d..0fe9c151e5 100644
--- a/tools/dockerfile/stress_test/grpc_interop_stress_php/Dockerfile
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_php/Dockerfile
@@ -117,24 +117,9 @@ RUN ln -s /usr/bin/ccache /usr/local/bin/clang++
 
 RUN mkdir /var/local/jenkins
 
-# ronn: a ruby tool used to convert markdown to man pages, used during the
-# install of Protobuf extensions
-#
-# rake: a ruby version of make used to build the PHP Protobuf extension
-RUN /bin/bash -l -c "rvm all do gem install ronn rake"
-
 # Install composer
 RUN curl -sS https://getcomposer.org/installer | php
 RUN mv composer.phar /usr/local/bin/composer
 
-# Download the patched PHP protobuf so that PHP gRPC clients can be generated
-# from proto3 schemas.
-RUN git clone https://github.com/stanley-cheung/Protobuf-PHP.git /var/local/git/protobuf-php
-
-RUN /bin/bash -l -c "rvm use ruby-2.1 \
-  && cd /var/local/git/protobuf-php \
-  && rvm all do rake pear:package version=1.0 \
-  && pear install Protobuf-1.0.tgz"
-
 # Define the default command.
 CMD ["bash"]
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_php/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_php/build_interop_stress.sh
index 87262f1d62..e3cca085a4 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_php/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_php/build_interop_stress.sh
@@ -32,13 +32,16 @@
 set -ex
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc
-rvm --default use ruby-2.1
 
 make install-certs
 
@@ -49,6 +52,6 @@ make install
 
 (cd third_party/protobuf && make install)
 
-(cd src/php && composer install)
+(cd src/php && php -d extension=ext/grpc/modules/grpc.so /usr/local/bin/composer install)
 
-(cd src/php && protoc-gen-php -i tests/interop/ -o tests/interop/ tests/interop/test.proto)
+(cd src/php && ./bin/generate_proto_php.sh)
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_python/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_python/build_interop_stress.sh
index e65332f2f3..1c7dc2bd57 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_python/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_python/build_interop_stress.sh
@@ -32,13 +32,16 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
 
 cd /var/local/git/grpc
-
 tools/run_tests/run_tests.py -l python -c opt --build_only
 
 # Build c++ interop client
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_ruby/build_interop_stress.sh b/tools/dockerfile/stress_test/grpc_interop_stress_ruby/build_interop_stress.sh
index 1b7567d87a..019f0a44e4 100755
--- a/tools/dockerfile/stress_test/grpc_interop_stress_ruby/build_interop_stress.sh
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_ruby/build_interop_stress.sh
@@ -32,7 +32,11 @@
 set -e
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 # Copy service account keys if available
 cp -r /var/local/jenkins/service_account $HOME || true
diff --git a/tools/dockerfile/test/cxx_wheezy_x64/Dockerfile b/tools/dockerfile/test/cxx_wheezy_x64/Dockerfile
index c25033387f..f22fcacc13 100644
--- a/tools/dockerfile/test/cxx_wheezy_x64/Dockerfile
+++ b/tools/dockerfile/test/cxx_wheezy_x64/Dockerfile
@@ -89,6 +89,11 @@ RUN apt-get update && apt-get install -y \
   g++-4.4 \
   g++-4.4-multilib
 
+# set up backport to allow installation of Git version > 1.7
+RUN echo "deb http://http.debian.net/debian wheezy-backports main"   >/etc/apt/sources.list.d/wheezy-backports.list
+RUN apt-get update -qq
+RUN apt-get -t wheezy-backports install -qq git
+
 RUN wget https://openssl.org/source/old/1.0.2/openssl-1.0.2f.tar.gz
 
 ENV POST_GIT_STEP tools/dockerfile/test/cxx_wheezy_x64/post-git-setup.sh
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 2a56d40c63..4b0be37e09 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -807,30 +807,6 @@ include/grpc++/support/string_ref.h \
 include/grpc++/support/stub_options.h \
 include/grpc++/support/sync_stream.h \
 include/grpc++/support/time.h \
-include/grpc/byte_buffer.h \
-include/grpc/byte_buffer_reader.h \
-include/grpc/compression.h \
-include/grpc/grpc.h \
-include/grpc/grpc_posix.h \
-include/grpc/grpc_security_constants.h \
-include/grpc/status.h \
-include/grpc/impl/codegen/byte_buffer_reader.h \
-include/grpc/impl/codegen/compression_types.h \
-include/grpc/impl/codegen/connectivity_state.h \
-include/grpc/impl/codegen/grpc_types.h \
-include/grpc/impl/codegen/propagation_bits.h \
-include/grpc/impl/codegen/status.h \
-include/grpc/impl/codegen/atm.h \
-include/grpc/impl/codegen/atm_gcc_atomic.h \
-include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_windows.h \
-include/grpc/impl/codegen/gpr_types.h \
-include/grpc/impl/codegen/port_platform.h \
-include/grpc/impl/codegen/slice.h \
-include/grpc/impl/codegen/sync.h \
-include/grpc/impl/codegen/sync_generic.h \
-include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_windows.h \
 include/grpc++/impl/codegen/async_stream.h \
 include/grpc++/impl/codegen/async_unary_call.h \
 include/grpc++/impl/codegen/call.h \
@@ -861,7 +837,24 @@ include/grpc++/impl/codegen/sync.h \
 include/grpc++/impl/codegen/sync_cxx11.h \
 include/grpc++/impl/codegen/sync_no_cxx11.h \
 include/grpc++/impl/codegen/sync_stream.h \
-include/grpc++/impl/codegen/time.h
+include/grpc++/impl/codegen/time.h \
+include/grpc/impl/codegen/byte_buffer_reader.h \
+include/grpc/impl/codegen/compression_types.h \
+include/grpc/impl/codegen/connectivity_state.h \
+include/grpc/impl/codegen/grpc_types.h \
+include/grpc/impl/codegen/propagation_bits.h \
+include/grpc/impl/codegen/status.h \
+include/grpc/impl/codegen/atm.h \
+include/grpc/impl/codegen/atm_gcc_atomic.h \
+include/grpc/impl/codegen/atm_gcc_sync.h \
+include/grpc/impl/codegen/atm_windows.h \
+include/grpc/impl/codegen/gpr_types.h \
+include/grpc/impl/codegen/port_platform.h \
+include/grpc/impl/codegen/slice.h \
+include/grpc/impl/codegen/sync.h \
+include/grpc/impl/codegen/sync_generic.h \
+include/grpc/impl/codegen/sync_posix.h \
+include/grpc/impl/codegen/sync_windows.h
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index fbe82c8616..e266e15481 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -807,30 +807,6 @@ include/grpc++/support/string_ref.h \
 include/grpc++/support/stub_options.h \
 include/grpc++/support/sync_stream.h \
 include/grpc++/support/time.h \
-include/grpc/byte_buffer.h \
-include/grpc/byte_buffer_reader.h \
-include/grpc/compression.h \
-include/grpc/grpc.h \
-include/grpc/grpc_posix.h \
-include/grpc/grpc_security_constants.h \
-include/grpc/status.h \
-include/grpc/impl/codegen/byte_buffer_reader.h \
-include/grpc/impl/codegen/compression_types.h \
-include/grpc/impl/codegen/connectivity_state.h \
-include/grpc/impl/codegen/grpc_types.h \
-include/grpc/impl/codegen/propagation_bits.h \
-include/grpc/impl/codegen/status.h \
-include/grpc/impl/codegen/atm.h \
-include/grpc/impl/codegen/atm_gcc_atomic.h \
-include/grpc/impl/codegen/atm_gcc_sync.h \
-include/grpc/impl/codegen/atm_windows.h \
-include/grpc/impl/codegen/gpr_types.h \
-include/grpc/impl/codegen/port_platform.h \
-include/grpc/impl/codegen/slice.h \
-include/grpc/impl/codegen/sync.h \
-include/grpc/impl/codegen/sync_generic.h \
-include/grpc/impl/codegen/sync_posix.h \
-include/grpc/impl/codegen/sync_windows.h \
 include/grpc++/impl/codegen/async_stream.h \
 include/grpc++/impl/codegen/async_unary_call.h \
 include/grpc++/impl/codegen/call.h \
@@ -862,6 +838,23 @@ include/grpc++/impl/codegen/sync_cxx11.h \
 include/grpc++/impl/codegen/sync_no_cxx11.h \
 include/grpc++/impl/codegen/sync_stream.h \
 include/grpc++/impl/codegen/time.h \
+include/grpc/impl/codegen/byte_buffer_reader.h \
+include/grpc/impl/codegen/compression_types.h \
+include/grpc/impl/codegen/connectivity_state.h \
+include/grpc/impl/codegen/grpc_types.h \
+include/grpc/impl/codegen/propagation_bits.h \
+include/grpc/impl/codegen/status.h \
+include/grpc/impl/codegen/atm.h \
+include/grpc/impl/codegen/atm_gcc_atomic.h \
+include/grpc/impl/codegen/atm_gcc_sync.h \
+include/grpc/impl/codegen/atm_windows.h \
+include/grpc/impl/codegen/gpr_types.h \
+include/grpc/impl/codegen/port_platform.h \
+include/grpc/impl/codegen/slice.h \
+include/grpc/impl/codegen/sync.h \
+include/grpc/impl/codegen/sync_generic.h \
+include/grpc/impl/codegen/sync_posix.h \
+include/grpc/impl/codegen/sync_windows.h \
 include/grpc++/impl/codegen/core_codegen.h \
 src/cpp/client/secure_credentials.h \
 src/cpp/common/secure_auth_context.h \
@@ -870,88 +863,6 @@ src/cpp/client/create_channel_internal.h \
 src/cpp/common/channel_filter.h \
 src/cpp/server/dynamic_thread_pool.h \
 src/cpp/server/thread_pool_interface.h \
-src/core/lib/channel/channel_args.h \
-src/core/lib/channel/channel_stack.h \
-src/core/lib/channel/channel_stack_builder.h \
-src/core/lib/channel/compress_filter.h \
-src/core/lib/channel/connected_channel.h \
-src/core/lib/channel/context.h \
-src/core/lib/channel/handshaker.h \
-src/core/lib/channel/http_client_filter.h \
-src/core/lib/channel/http_server_filter.h \
-src/core/lib/channel/message_size_filter.h \
-src/core/lib/compression/algorithm_metadata.h \
-src/core/lib/compression/message_compress.h \
-src/core/lib/debug/trace.h \
-src/core/lib/http/format_request.h \
-src/core/lib/http/httpcli.h \
-src/core/lib/http/parser.h \
-src/core/lib/iomgr/closure.h \
-src/core/lib/iomgr/combiner.h \
-src/core/lib/iomgr/endpoint.h \
-src/core/lib/iomgr/endpoint_pair.h \
-src/core/lib/iomgr/error.h \
-src/core/lib/iomgr/ev_epoll_linux.h \
-src/core/lib/iomgr/ev_poll_and_epoll_posix.h \
-src/core/lib/iomgr/ev_poll_posix.h \
-src/core/lib/iomgr/ev_posix.h \
-src/core/lib/iomgr/exec_ctx.h \
-src/core/lib/iomgr/executor.h \
-src/core/lib/iomgr/iocp_windows.h \
-src/core/lib/iomgr/iomgr.h \
-src/core/lib/iomgr/iomgr_internal.h \
-src/core/lib/iomgr/iomgr_posix.h \
-src/core/lib/iomgr/load_file.h \
-src/core/lib/iomgr/network_status_tracker.h \
-src/core/lib/iomgr/polling_entity.h \
-src/core/lib/iomgr/pollset.h \
-src/core/lib/iomgr/pollset_set.h \
-src/core/lib/iomgr/pollset_set_windows.h \
-src/core/lib/iomgr/pollset_windows.h \
-src/core/lib/iomgr/resolve_address.h \
-src/core/lib/iomgr/sockaddr.h \
-src/core/lib/iomgr/sockaddr_posix.h \
-src/core/lib/iomgr/sockaddr_utils.h \
-src/core/lib/iomgr/sockaddr_windows.h \
-src/core/lib/iomgr/socket_utils_posix.h \
-src/core/lib/iomgr/socket_windows.h \
-src/core/lib/iomgr/tcp_client.h \
-src/core/lib/iomgr/tcp_posix.h \
-src/core/lib/iomgr/tcp_server.h \
-src/core/lib/iomgr/tcp_windows.h \
-src/core/lib/iomgr/time_averaged_stats.h \
-src/core/lib/iomgr/timer.h \
-src/core/lib/iomgr/timer_heap.h \
-src/core/lib/iomgr/udp_server.h \
-src/core/lib/iomgr/unix_sockets_posix.h \
-src/core/lib/iomgr/wakeup_fd_pipe.h \
-src/core/lib/iomgr/wakeup_fd_posix.h \
-src/core/lib/iomgr/workqueue.h \
-src/core/lib/iomgr/workqueue_posix.h \
-src/core/lib/iomgr/workqueue_windows.h \
-src/core/lib/json/json.h \
-src/core/lib/json/json_common.h \
-src/core/lib/json/json_reader.h \
-src/core/lib/json/json_writer.h \
-src/core/lib/surface/api_trace.h \
-src/core/lib/surface/call.h \
-src/core/lib/surface/call_test_only.h \
-src/core/lib/surface/channel.h \
-src/core/lib/surface/channel_init.h \
-src/core/lib/surface/channel_stack_type.h \
-src/core/lib/surface/completion_queue.h \
-src/core/lib/surface/event_string.h \
-src/core/lib/surface/init.h \
-src/core/lib/surface/lame_client.h \
-src/core/lib/surface/server.h \
-src/core/lib/transport/byte_stream.h \
-src/core/lib/transport/connectivity_state.h \
-src/core/lib/transport/metadata.h \
-src/core/lib/transport/metadata_batch.h \
-src/core/lib/transport/static_metadata.h \
-src/core/lib/transport/timeout_encoding.h \
-src/core/lib/transport/transport.h \
-src/core/lib/transport/transport_impl.h \
 src/cpp/client/insecure_credentials.cc \
 src/cpp/client/secure_credentials.cc \
 src/cpp/common/auth_property_iterator.cc \
@@ -985,97 +896,6 @@ src/cpp/util/slice_cc.cc \
 src/cpp/util/status.cc \
 src/cpp/util/string_ref.cc \
 src/cpp/util/time_cc.cc \
-src/core/lib/channel/channel_args.c \
-src/core/lib/channel/channel_stack.c \
-src/core/lib/channel/channel_stack_builder.c \
-src/core/lib/channel/compress_filter.c \
-src/core/lib/channel/connected_channel.c \
-src/core/lib/channel/handshaker.c \
-src/core/lib/channel/http_client_filter.c \
-src/core/lib/channel/http_server_filter.c \
-src/core/lib/channel/message_size_filter.c \
-src/core/lib/compression/compression.c \
-src/core/lib/compression/message_compress.c \
-src/core/lib/debug/trace.c \
-src/core/lib/http/format_request.c \
-src/core/lib/http/httpcli.c \
-src/core/lib/http/parser.c \
-src/core/lib/iomgr/closure.c \
-src/core/lib/iomgr/combiner.c \
-src/core/lib/iomgr/endpoint.c \
-src/core/lib/iomgr/endpoint_pair_posix.c \
-src/core/lib/iomgr/endpoint_pair_windows.c \
-src/core/lib/iomgr/error.c \
-src/core/lib/iomgr/ev_epoll_linux.c \
-src/core/lib/iomgr/ev_poll_and_epoll_posix.c \
-src/core/lib/iomgr/ev_poll_posix.c \
-src/core/lib/iomgr/ev_posix.c \
-src/core/lib/iomgr/exec_ctx.c \
-src/core/lib/iomgr/executor.c \
-src/core/lib/iomgr/iocp_windows.c \
-src/core/lib/iomgr/iomgr.c \
-src/core/lib/iomgr/iomgr_posix.c \
-src/core/lib/iomgr/iomgr_windows.c \
-src/core/lib/iomgr/load_file.c \
-src/core/lib/iomgr/network_status_tracker.c \
-src/core/lib/iomgr/polling_entity.c \
-src/core/lib/iomgr/pollset_set_windows.c \
-src/core/lib/iomgr/pollset_windows.c \
-src/core/lib/iomgr/resolve_address_posix.c \
-src/core/lib/iomgr/resolve_address_windows.c \
-src/core/lib/iomgr/sockaddr_utils.c \
-src/core/lib/iomgr/socket_utils_common_posix.c \
-src/core/lib/iomgr/socket_utils_linux.c \
-src/core/lib/iomgr/socket_utils_posix.c \
-src/core/lib/iomgr/socket_windows.c \
-src/core/lib/iomgr/tcp_client_posix.c \
-src/core/lib/iomgr/tcp_client_windows.c \
-src/core/lib/iomgr/tcp_posix.c \
-src/core/lib/iomgr/tcp_server_posix.c \
-src/core/lib/iomgr/tcp_server_windows.c \
-src/core/lib/iomgr/tcp_windows.c \
-src/core/lib/iomgr/time_averaged_stats.c \
-src/core/lib/iomgr/timer.c \
-src/core/lib/iomgr/timer_heap.c \
-src/core/lib/iomgr/udp_server.c \
-src/core/lib/iomgr/unix_sockets_posix.c \
-src/core/lib/iomgr/unix_sockets_posix_noop.c \
-src/core/lib/iomgr/wakeup_fd_eventfd.c \
-src/core/lib/iomgr/wakeup_fd_nospecial.c \
-src/core/lib/iomgr/wakeup_fd_pipe.c \
-src/core/lib/iomgr/wakeup_fd_posix.c \
-src/core/lib/iomgr/workqueue_posix.c \
-src/core/lib/iomgr/workqueue_windows.c \
-src/core/lib/json/json.c \
-src/core/lib/json/json_reader.c \
-src/core/lib/json/json_string.c \
-src/core/lib/json/json_writer.c \
-src/core/lib/surface/alarm.c \
-src/core/lib/surface/api_trace.c \
-src/core/lib/surface/byte_buffer.c \
-src/core/lib/surface/byte_buffer_reader.c \
-src/core/lib/surface/call.c \
-src/core/lib/surface/call_details.c \
-src/core/lib/surface/call_log_batch.c \
-src/core/lib/surface/channel.c \
-src/core/lib/surface/channel_init.c \
-src/core/lib/surface/channel_ping.c \
-src/core/lib/surface/channel_stack_type.c \
-src/core/lib/surface/completion_queue.c \
-src/core/lib/surface/event_string.c \
-src/core/lib/surface/lame_client.c \
-src/core/lib/surface/metadata_array.c \
-src/core/lib/surface/server.c \
-src/core/lib/surface/validate_metadata.c \
-src/core/lib/surface/version.c \
-src/core/lib/transport/byte_stream.c \
-src/core/lib/transport/connectivity_state.c \
-src/core/lib/transport/metadata.c \
-src/core/lib/transport/metadata_batch.c \
-src/core/lib/transport/static_metadata.c \
-src/core/lib/transport/timeout_encoding.c \
-src/core/lib/transport/transport.c \
-src/core/lib/transport/transport_op_string.c \
 src/cpp/codegen/codegen_init.cc
 
 # This tag can be used to specify the character encoding of the source files
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index c8c683e933..0c92e270c8 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -792,6 +792,7 @@ src/core/lib/channel/channel_stack_builder.h \
 src/core/lib/channel/compress_filter.h \
 src/core/lib/channel/connected_channel.h \
 src/core/lib/channel/context.h \
+src/core/lib/channel/deadline_filter.h \
 src/core/lib/channel/handshaker.h \
 src/core/lib/channel/http_client_filter.h \
 src/core/lib/channel/http_server_filter.h \
@@ -840,6 +841,7 @@ src/core/lib/iomgr/timer.h \
 src/core/lib/iomgr/timer_heap.h \
 src/core/lib/iomgr/udp_server.h \
 src/core/lib/iomgr/unix_sockets_posix.h \
+src/core/lib/iomgr/wakeup_fd_cv.h \
 src/core/lib/iomgr/wakeup_fd_pipe.h \
 src/core/lib/iomgr/wakeup_fd_posix.h \
 src/core/lib/iomgr/workqueue.h \
@@ -955,6 +957,7 @@ src/core/lib/channel/channel_stack.c \
 src/core/lib/channel/channel_stack_builder.c \
 src/core/lib/channel/compress_filter.c \
 src/core/lib/channel/connected_channel.c \
+src/core/lib/channel/deadline_filter.c \
 src/core/lib/channel/handshaker.c \
 src/core/lib/channel/http_client_filter.c \
 src/core/lib/channel/http_server_filter.c \
@@ -1005,6 +1008,7 @@ src/core/lib/iomgr/timer_heap.c \
 src/core/lib/iomgr/udp_server.c \
 src/core/lib/iomgr/unix_sockets_posix.c \
 src/core/lib/iomgr/unix_sockets_posix_noop.c \
+src/core/lib/iomgr/wakeup_fd_cv.c \
 src/core/lib/iomgr/wakeup_fd_eventfd.c \
 src/core/lib/iomgr/wakeup_fd_nospecial.c \
 src/core/lib/iomgr/wakeup_fd_pipe.c \
diff --git a/tools/gce/create_linux_worker.sh b/tools/gce/create_linux_worker.sh
index 7bf8b24081..013127c585 100755
--- a/tools/gce/create_linux_worker.sh
+++ b/tools/gce/create_linux_worker.sh
@@ -42,7 +42,7 @@ INSTANCE_NAME="${1:-grpc-jenkins-worker1}"
 gcloud compute instances create $INSTANCE_NAME \
     --project="$CLOUD_PROJECT" \
     --zone "$ZONE" \
-    --machine-type n1-standard-8 \
+    --machine-type n1-highmem-8 \
     --image=ubuntu-1510 \
     --image-project=grpc-testing \
     --boot-disk-size 1000
diff --git a/tools/gce/linux_performance_worker_init.sh b/tools/gce/linux_performance_worker_init.sh
index ea80d74bdf..487672549f 100755
--- a/tools/gce/linux_performance_worker_init.sh
+++ b/tools/gce/linux_performance_worker_init.sh
@@ -128,4 +128,15 @@ gem install bundler
 # Java dependencies - nothing as we already have Java JDK 8
 
 # Go dependencies
-sudo apt-get install -y golang-go
+# Currently, the golang package available via apt-get doesn't have the latest go.
+# Significant performance improvements with grpc-go have been observed after
+# upgrading from go 1.5 to a later version, so a later go version is preferred.
+# Following go install instructions from https://golang.org/doc/install
+GO_VERSION=1.7.1
+OS=linux
+ARCH=amd64
+curl -O https://storage.googleapis.com/golang/go${GO_VERSION}.${OS}-${ARCH}.tar.gz
+sudo tar -C /usr/local -xzf go$GO_VERSION.$OS-$ARCH.tar.gz
+# Put go on the PATH, keep the usual installation dir
+sudo ln -s /usr/local/go/bin/go /usr/bin/go
+rm go$GO_VERSION.$OS-$ARCH.tar.gz
diff --git a/tools/gce/linux_worker_init.sh b/tools/gce/linux_worker_init.sh
index afcf7a52d9..9230acdca6 100755
--- a/tools/gce/linux_worker_init.sh
+++ b/tools/gce/linux_worker_init.sh
@@ -34,6 +34,14 @@
 
 set -ex
 
+# Create some swap space
+sudo dd if=/dev/zero of=/swap bs=1024 count=10485760
+sudo chmod 600 /swap
+sudo mkswap /swap
+sudo sed -i '$ a\/swap none swap sw 0 0' /etc/fstab
+sudo swapon -a
+
+# Typical apt-get maintenance
 sudo apt-get update
 
 # Install JRE
diff --git a/tools/jenkins/reboot_worker.sh b/tools/jenkins/reboot_worker.sh
new file mode 100755
index 0000000000..285e699b9b
--- /dev/null
+++ b/tools/jenkins/reboot_worker.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Reboots Jenkins worker
+#
+# NOTE: No empty lines should appear in this file before igncr is set!
+set -ex -o igncr || set -ex
+
+# Give 5 seconds to finish the current job, then kill the jenkins slave process
+# to avoid running any other jobs on the worker and restart the worker.
+nohup sh -c 'sleep 5; killall java; sudo reboot' &
diff --git a/tools/jenkins/run_full_performance.sh b/tools/jenkins/run_full_performance.sh
index 3feda866f2..7631db8844 100755
--- a/tools/jenkins/run_full_performance.sh
+++ b/tools/jenkins/run_full_performance.sh
@@ -38,7 +38,7 @@ cd $(dirname $0)/../..
 tools/run_tests/run_performance_tests.py \
     -l c++ csharp node ruby java python go \
     --netperf \
-    --category all \
+    --category scalable \
     --bq_result_table performance_test.performance_experiment \
     --remote_worker_host grpc-performance-server-8core grpc-performance-client-8core grpc-performance-client2-8core \
     || EXIT_CODE=1
@@ -53,4 +53,3 @@ tools/run_tests/run_performance_tests.py \
     || EXIT_CODE=1
 
 exit $EXIT_CODE
-
diff --git a/tools/jenkins/run_jenkins_matrix.sh b/tools/jenkins/run_jenkins_matrix.sh
new file mode 100755
index 0000000000..b3783e6958
--- /dev/null
+++ b/tools/jenkins/run_jenkins_matrix.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# This script is invoked by Jenkins and triggers a test run, bypassing
+# all args to the test script.
+#
+# Setting up rvm environment BEFORE we set -ex.
+[[ -s /etc/profile.d/rvm.sh ]] && . /etc/profile.d/rvm.sh
+# To prevent cygwin bash complaining about empty lines ending with \r
+# we set the igncr option. The option doesn't exist on Linux, so we fallback
+# to just 'set -ex' there.
+# NOTE: No empty lines should appear in this file before igncr is set!
+set -ex -o igncr || set -ex
+
+python tools/run_tests/run_tests_matrix.py $@
diff --git a/tools/run_tests/dockerize/build_docker_and_run_tests.sh b/tools/run_tests/dockerize/build_docker_and_run_tests.sh
index c2ea6f2c6e..c3219c533d 100755
--- a/tools/run_tests/dockerize/build_docker_and_run_tests.sh
+++ b/tools/run_tests/dockerize/build_docker_and_run_tests.sh
@@ -44,9 +44,6 @@ mkdir -p /tmp/ccache
 # its cache location now that --download-cache is deprecated).
 mkdir -p /tmp/xdg-cache-home
 
-# Create a local branch so the child Docker script won't complain
-git branch -f jenkins-docker
-
 # Inputs
 # DOCKERFILE_DIR - Directory in which Dockerfile file is located.
 # DOCKER_RUN_SCRIPT - Script to run under docker (relative to grpc repo root)
@@ -64,6 +61,7 @@ CONTAINER_NAME="run_tests_$(uuidgen)"
 docker_instance_git_root=/var/local/jenkins/grpc
 
 # Run tests inside docker
+DOCKER_EXIT_CODE=0
 docker run \
   -e "RUN_TESTS_COMMAND=$RUN_TESTS_COMMAND" \
   -e "config=$config" \
@@ -84,16 +82,16 @@ docker run \
   -w /var/local/git/grpc \
   --name=$CONTAINER_NAME \
   $DOCKER_IMAGE_NAME \
-  bash -l "/var/local/jenkins/grpc/$DOCKER_RUN_SCRIPT" || DOCKER_FAILED="true"
+  bash -l "/var/local/jenkins/grpc/$DOCKER_RUN_SCRIPT" || DOCKER_EXIT_CODE=$?
 
-docker cp "$CONTAINER_NAME:/var/local/git/grpc/reports.zip" $git_root || true
-unzip -o $git_root/reports.zip -d $git_root || true
-rm -f reports.zip
+# use unique name for reports.zip to prevent clash between concurrent
+# run_tests.py runs 
+TEMP_REPORTS_ZIP=`mktemp`
+docker cp "$CONTAINER_NAME:/var/local/git/grpc/reports.zip" ${TEMP_REPORTS_ZIP} || true
+unzip -o ${TEMP_REPORTS_ZIP} -d $git_root || true
+rm -f ${TEMP_REPORTS_ZIP}
 
 # remove the container, possibly killing it first
 docker rm -f $CONTAINER_NAME || true
 
-if [ "$DOCKER_FAILED" != "" ] && [ "$XML_REPORT" == "" ]
-then
-  exit 1
-fi
+exit $DOCKER_EXIT_CODE
diff --git a/tools/run_tests/dockerize/docker_run.sh b/tools/run_tests/dockerize/docker_run.sh
index f04b1cfb55..ee8d288fb2 100755
--- a/tools/run_tests/dockerize/docker_run.sh
+++ b/tools/run_tests/dockerize/docker_run.sh
@@ -36,7 +36,11 @@ set -ex
 if [ "$RELATIVE_COPY_PATH" == "" ]
 then
   mkdir -p /var/local/git
-  git clone --recursive "$EXTERNAL_GIT_ROOT" /var/local/git/grpc
+  git clone $EXTERNAL_GIT_ROOT /var/local/git/grpc
+  # clone gRPC submodules, use data from locally cloned submodules where possible
+  (cd ${EXTERNAL_GIT_ROOT} && git submodule foreach 'cd /var/local/git/grpc \
+  && git submodule update --init --reference ${EXTERNAL_GIT_ROOT}/${name} \
+  ${name}')
 else
   mkdir -p "/var/local/git/grpc/$RELATIVE_COPY_PATH"
   cp -r "$EXTERNAL_GIT_ROOT/$RELATIVE_COPY_PATH"/* "/var/local/git/grpc/$RELATIVE_COPY_PATH"
diff --git a/tools/run_tests/dockerize/docker_run_tests.sh b/tools/run_tests/dockerize/docker_run_tests.sh
index 8c6143d24f..eb220ae416 100755
--- a/tools/run_tests/dockerize/docker_run_tests.sh
+++ b/tools/run_tests/dockerize/docker_run_tests.sh
@@ -42,7 +42,11 @@ export PATH=$PATH:/usr/bin/llvm-symbolizer
 chown $(whoami) $XDG_CACHE_HOME
 
 mkdir -p /var/local/git
-git clone --recursive /var/local/jenkins/grpc /var/local/git/grpc
+git clone  /var/local/jenkins/grpc /var/local/git/grpc
+# clone gRPC submodules, use data from locally cloned submodules where possible
+(cd /var/local/jenkins/grpc/ && git submodule foreach 'cd /var/local/git/grpc \
+&& git submodule update --init --reference /var/local/jenkins/grpc/${name} \
+${name}')
 
 mkdir -p reports
 
@@ -63,6 +67,7 @@ echo '</body></html>' >> index.html
 cd ..
 
 zip -r reports.zip reports
-find . -name report.xml | xargs zip reports.zip
+find . -name report.xml | xargs -r zip reports.zip
+find . -name 'report_*.xml' | xargs -r zip reports.zip
 
 exit $exit_code
diff --git a/tools/run_tests/filter_pull_request_tests.py b/tools/run_tests/filter_pull_request_tests.py
new file mode 100644
index 0000000000..55dab42f8a
--- /dev/null
+++ b/tools/run_tests/filter_pull_request_tests.py
@@ -0,0 +1,184 @@
+#!/usr/bin/env python2.7
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Filter out tests based on file differences compared to merge target branch"""
+
+import re
+from subprocess import call, check_output
+
+
+class TestSuite:
+  """
+  Contains tag to identify job as belonging to this test suite and
+  triggers to identify if changed files are relevant
+  """
+  def __init__(self, tags):
+    """
+    Build TestSuite to group tests by their tags
+    :param tag: string used to identify if a job belongs to this TestSuite
+    todo(mattkwong): Change the use of tag because do not want to depend on
+    job.shortname to identify what suite a test belongs to
+    """
+    self.triggers = []
+    self.tags = tags
+
+  def add_trigger(self, trigger):
+    """
+    Add a regex to list of triggers that determine if a changed file should run tests
+    :param trigger: regex matching file relevant to tests
+    """
+    self.triggers.append(trigger)
+
+# Create test suites
+_core_test_suite = TestSuite(['_c_'])
+_cpp_test_suite = TestSuite(['_c++_'])
+_csharp_test_suite = TestSuite(['_csharp_'])
+_node_test_suite = TestSuite(['_node_'])
+_objc_test_suite = TestSuite(['_objc_'])
+_php_test_suite = TestSuite(['_php_', '_php7_'])
+_python_test_suite = TestSuite(['_python_'])
+_ruby_test_suite = TestSuite(['_ruby'])
+_all_test_suites = [_core_test_suite, _cpp_test_suite, _csharp_test_suite,
+                    _node_test_suite, _objc_test_suite, _php_test_suite,
+                    _python_test_suite, _ruby_test_suite]
+
+# Dictionary of whitelistable files where the key is a regex matching changed files
+# and the value is a list of tests that should be run. An empty list means that
+# the changed files should not trigger any tests. Any changed file that does not
+# match any of these regexes will trigger all tests
+_WHITELIST_DICT = {
+  '^templates/.*': [],
+  '^doc/.*': [],
+  '^examples/.*': [],
+  '^summerofcode/.*': [],
+  '.*README.md$': [],
+  '.*LICENSE$': [],
+  '^src/cpp.*': [_cpp_test_suite],
+  '^src/csharp.*': [_csharp_test_suite],
+  '^src/node.*': [_node_test_suite],
+  '^src/objective-c.*': [_objc_test_suite],
+  '^src/php.*': [_php_test_suite],
+  '^src/python.*': [_python_test_suite],
+  '^src/ruby.*': [_ruby_test_suite],
+  '^test/core.*': [_core_test_suite],
+  '^test/cpp.*': [_cpp_test_suite],
+  '^test/distrib/cpp.*': [_cpp_test_suite],
+  '^test/distrib/csharp.*': [_csharp_test_suite],
+  '^test/distrib/node.*': [_node_test_suite],
+  '^test/distrib/php.*': [_php_test_suite],
+  '^test/distrib/python.*': [_python_test_suite],
+  '^test/distrib/ruby.*': [_ruby_test_suite]
+}
+# Add all triggers to their respective test suites
+for trigger, test_suites in _WHITELIST_DICT.iteritems():
+  for test_suite in test_suites:
+    test_suite.add_trigger(trigger)
+
+
+def _get_changed_files(base_branch):
+  """
+  Get list of changed files between current branch and base of target merge branch
+  """
+  # git fetch might need to be called on Jenkins slave
+  # todo(mattkwong): remove or uncomment below after seeing if Jenkins needs this
+  # call(['git', 'fetch'])
+
+  # Get file changes between branch and merge-base of specified branch
+  # Not combined to be Windows friendly
+  base_commit = check_output(["git", "merge-base", base_branch, "HEAD"]).rstrip()
+  return check_output(["git", "diff", base_commit, "--name-only"]).splitlines()
+
+
+def _can_skip_tests(file_names, triggers):
+  """
+  Determines if tests are skippable based on if all files do not match list of regexes
+  :param file_names: list of changed files generated by _get_changed_files()
+  :param triggers: list of regexes matching file name that indicates tests should be run
+  :return: safe to skip tests
+  """
+  for file_name in file_names:
+    if any(re.match(trigger, file_name) for trigger in triggers):
+      return False
+  return True
+
+
+def _remove_irrelevant_tests(tests, tag):
+  """
+  Filters out tests by config or language - will not remove sanitizer tests
+  :param tests: list of all tests generated by run_tests_matrix.py
+  :param tag: string representing language or config to filter - "_(language)_" or "_(config)"
+  :return: list of relevant tests
+  """
+  # todo(mattkwong): find a more reliable way to filter tests - don't use shortname
+  return [test for test in tests if tag not in test.shortname or
+          any(san_tag in test.shortname for san_tag in ['_asan', '_tsan', '_msan'])]
+
+
+def _remove_sanitizer_tests(tests):
+  """
+  Filters out sanitizer tests
+  :param tests: list of all tests generated by run_tests_matrix.py
+  :return: list of relevant tests
+  """
+  # todo(mattkwong): find a more reliable way to filter tests - don't use shortname
+  return [test for test in tests if
+          all(san_tag not in test.shortname for san_tag in ['_asan', '_tsan', '_msan'])]
+
+
+def filter_tests(tests, base_branch):
+  """
+  Filters out tests that are safe to ignore
+  :param tests: list of all tests generated by run_tests_matrix.py
+  :return: list of relevant tests
+  """
+  print("Finding file differences between %s repo and current branch...\n" % base_branch)
+  changed_files = _get_changed_files(base_branch)
+  for changed_file in changed_files:
+    print(changed_file)
+  print
+
+  # Regex that combines all keys in _WHITELIST_DICT
+  all_triggers = "(" + ")|(".join(_WHITELIST_DICT.keys()) + ")"
+  # Check if all tests have to be run
+  for changed_file in changed_files:
+    if not re.match(all_triggers, changed_file):
+      return(tests)
+  # Filter out tests by language
+  for test_suite in _all_test_suites:
+    if _can_skip_tests(changed_files, test_suite.triggers):
+      for tag in test_suite.tags:
+        print("  Filtering %s tests" % tag)
+        tests = _remove_irrelevant_tests(tests, tag)
+  # Sanitizer tests skipped if core and c++ are skipped
+  if _can_skip_tests(changed_files, _cpp_test_suite.triggers + _core_test_suite.triggers):
+    print("  Filtering Sanitizer tests")
+    tests = _remove_sanitizer_tests(tests)
+
+  return tests
diff --git a/tools/run_tests/performance/scenario_config.py b/tools/run_tests/performance/scenario_config.py
index 8166fbd419..ef32b5e801 100644
--- a/tools/run_tests/performance/scenario_config.py
+++ b/tools/run_tests/performance/scenario_config.py
@@ -190,7 +190,7 @@ class CXXLanguage:
     # TODO(ctiller): add 70% load latency test
     for secure in [True, False]:
       secstr = 'secure' if secure else 'insecure'
-      smoketest_categories = [SMOKETEST] if secure else []
+      smoketest_categories = ([SMOKETEST] if secure else []) + [SCALABLE]
 
       yield _ping_pong_scenario(
           'cpp_generic_async_streaming_ping_pong_%s' % secstr,
@@ -296,7 +296,7 @@ class CSharpLanguage:
         client_type='ASYNC_CLIENT',
         server_type='ASYNC_GENERIC_SERVER',
         use_generic_payload=True,
-        categories=[SMOKETEST])
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'csharp_protobuf_async_streaming_ping_pong',
@@ -305,11 +305,9 @@ class CSharpLanguage:
         server_type='ASYNC_SERVER')
 
     yield _ping_pong_scenario(
-        'csharp_protobuf_async_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='ASYNC_CLIENT',
-        server_type='ASYNC_SERVER',
-        categories=[SMOKETEST])
+        'csharp_protobuf_async_unary_ping_pong', rpc_type='UNARY',
+        client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER',
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'csharp_protobuf_sync_to_async_unary_ping_pong',
@@ -334,14 +332,10 @@ class CSharpLanguage:
         categories=[SCALABLE])
 
     yield _ping_pong_scenario(
-        'csharp_to_cpp_protobuf_sync_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='SYNC_CLIENT',
-        server_type='SYNC_SERVER',
-        server_language='c++',
-        server_core_limit=1,
-        async_server_threads=1,
-        categories=[SMOKETEST])
+        'csharp_to_cpp_protobuf_sync_unary_ping_pong', rpc_type='UNARY',
+        client_type='SYNC_CLIENT', server_type='SYNC_SERVER',
+        server_language='c++', server_core_limit=1, async_server_threads=1,
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'csharp_to_cpp_protobuf_async_streaming_ping_pong',
@@ -408,11 +402,9 @@ class NodeLanguage:
     #    client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER')
 
     yield _ping_pong_scenario(
-        'node_protobuf_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='ASYNC_CLIENT',
-        server_type='ASYNC_SERVER',
-        categories=[SMOKETEST])
+        'node_protobuf_unary_ping_pong', rpc_type='UNARY',
+        client_type='ASYNC_CLIENT', server_type='ASYNC_SERVER',
+        categories=[SCALABLE, SMOKETEST])
 
     yield _ping_pong_scenario(
         'node_protobuf_async_unary_qps_unconstrained',
@@ -420,7 +412,7 @@ class NodeLanguage:
         client_type='ASYNC_CLIENT',
         server_type='ASYNC_SERVER',
         unconstrained_client='async',
-        categories=[SMOKETEST])
+        categories=[SCALABLE, SMOKETEST])
 
     # TODO(jtattermusch): make this scenario work
     #yield _ping_pong_scenario(
@@ -462,7 +454,7 @@ class PythonLanguage:
         client_type='SYNC_CLIENT',
         server_type='ASYNC_GENERIC_SERVER',
         use_generic_payload=True,
-        categories=[SMOKETEST])
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'python_protobuf_sync_streaming_ping_pong',
@@ -477,11 +469,9 @@ class PythonLanguage:
         server_type='ASYNC_SERVER')
 
     yield _ping_pong_scenario(
-        'python_protobuf_sync_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='SYNC_CLIENT',
-        server_type='ASYNC_SERVER',
-        categories=[SMOKETEST])
+        'python_protobuf_sync_unary_ping_pong', rpc_type='UNARY',
+        client_type='SYNC_CLIENT', server_type='ASYNC_SERVER',
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'python_protobuf_sync_unary_qps_unconstrained',
@@ -498,14 +488,10 @@ class PythonLanguage:
         unconstrained_client='sync')
 
     yield _ping_pong_scenario(
-        'python_to_cpp_protobuf_sync_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='SYNC_CLIENT',
-        server_type='ASYNC_SERVER',
-        server_language='c++',
-        server_core_limit=1,
-        async_server_threads=1,
-        categories=[SMOKETEST])
+        'python_to_cpp_protobuf_sync_unary_ping_pong', rpc_type='UNARY',
+        client_type='SYNC_CLIENT', server_type='ASYNC_SERVER',
+        server_language='c++', server_core_limit=1, async_server_threads=1,
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'python_to_cpp_protobuf_sync_streaming_ping_pong',
@@ -534,18 +520,14 @@ class RubyLanguage:
 
   def scenarios(self):
     yield _ping_pong_scenario(
-        'ruby_protobuf_sync_streaming_ping_pong',
-        rpc_type='STREAMING',
-        client_type='SYNC_CLIENT',
-        server_type='SYNC_SERVER',
-        categories=[SMOKETEST])
+        'ruby_protobuf_sync_streaming_ping_pong', rpc_type='STREAMING',
+        client_type='SYNC_CLIENT', server_type='SYNC_SERVER',
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
-        'ruby_protobuf_unary_ping_pong',
-        rpc_type='UNARY',
-        client_type='SYNC_CLIENT',
-        server_type='SYNC_SERVER',
-        categories=[SMOKETEST])
+        'ruby_protobuf_unary_ping_pong', rpc_type='UNARY',
+        client_type='SYNC_CLIENT', server_type='SYNC_SERVER',
+        categories=[SMOKETEST, SCALABLE])
 
     yield _ping_pong_scenario(
         'ruby_protobuf_sync_unary_qps_unconstrained',
@@ -598,7 +580,7 @@ class JavaLanguage:
   def scenarios(self):
     for secure in [True, False]:
       secstr = 'secure' if secure else 'insecure'
-      smoketest_categories = [SMOKETEST] if secure else []
+      smoketest_categories = ([SMOKETEST] if secure else []) + [SCALABLE]
 
       yield _ping_pong_scenario(
           'java_generic_async_streaming_ping_pong_%s' % secstr,
@@ -702,7 +684,7 @@ class GoLanguage:
   def scenarios(self):
     for secure in [True, False]:
       secstr = 'secure' if secure else 'insecure'
-      smoketest_categories = [SMOKETEST] if secure else []
+      smoketest_categories = ([SMOKETEST] if secure else []) + [SCALABLE]
 
       # ASYNC_GENERIC_SERVER for Go actually uses a sync streaming server,
       # but that's mostly because of lack of better name of the enum value.
diff --git a/tools/run_tests/report_utils.py b/tools/run_tests/report_utils.py
index 5648a694cd..efe5dc999d 100644
--- a/tools/run_tests/report_utils.py
+++ b/tools/run_tests/report_utils.py
@@ -57,11 +57,12 @@ def _filter_msg(msg, output_format):
     return msg
 
 
-def render_junit_xml_report(resultset, xml_report):
+def render_junit_xml_report(resultset, xml_report, suite_package='grpc',
+                            suite_name='tests'):
   """Generate JUnit-like XML report."""
   root = ET.Element('testsuites')
-  testsuite = ET.SubElement(root, 'testsuite', id='1', package='grpc', 
-                            name='tests')
+  testsuite = ET.SubElement(root, 'testsuite', id='1', package=suite_package,
+                            name=suite_name)
   for shortname, results in resultset.items():
     for result in results:
       xml_test = ET.SubElement(testsuite, 'testcase', name=shortname) 
diff --git a/tools/run_tests/run_performance_tests.py b/tools/run_tests/run_performance_tests.py
index 3f028f177b..92149115fe 100755
--- a/tools/run_tests/run_performance_tests.py
+++ b/tools/run_tests/run_performance_tests.py
@@ -280,7 +280,7 @@ def create_qpsworkers(languages, worker_hosts):
           for worker_idx, worker in enumerate(workers)]
 
 
-Scenario = collections.namedtuple('Scenario', 'jobspec workers')
+Scenario = collections.namedtuple('Scenario', 'jobspec workers name')
 
 
 def create_scenarios(languages, workers_by_lang, remote_host=None, regex='.*',
@@ -307,7 +307,7 @@ def create_scenarios(languages, workers_by_lang, remote_host=None, regex='.*',
         create_netperf_jobspec(server_host=netperf_server,
                                client_host=netperf_client,
                                bq_result_table=bq_result_table),
-        _NO_WORKERS))
+        _NO_WORKERS, 'netperf'))
 
   for language in languages:
     for scenario_json in language.scenarios():
@@ -347,7 +347,8 @@ def create_scenarios(languages, workers_by_lang, remote_host=None, regex='.*',
                                       [w.host_and_port for w in workers],
                                       remote_host=remote_host,
                                       bq_result_table=bq_result_table),
-              workers)
+              workers,
+              scenario_json['name'])
           scenarios.append(scenario)
 
   return scenarios
@@ -382,6 +383,11 @@ argp.add_argument('--remote_worker_host',
                   nargs='+',
                   default=[],
                   help='Worker hosts where to start QPS workers.')
+argp.add_argument('--dry_run',
+                  default=False,
+                  action='store_const',
+                  const=True,
+                  help='Just list scenarios to be run, but don\'t run them.')
 argp.add_argument('-r', '--regex', default='.*', type=str,
                   help='Regex to select scenarios to run.')
 argp.add_argument('--bq_result_table', default=None, type=str,
@@ -412,16 +418,18 @@ if args.remote_worker_host:
 if args.remote_driver_host:
   remote_hosts.add(args.remote_driver_host)
 
-if remote_hosts:
-  archive_repo(languages=[str(l) for l in languages])
-  prepare_remote_hosts(remote_hosts, prepare_local=True)
-else:
-  prepare_remote_hosts([], prepare_local=True)
+if not args.dry_run:
+  if remote_hosts:
+    archive_repo(languages=[str(l) for l in languages])
+    prepare_remote_hosts(remote_hosts, prepare_local=True)
+  else:
+    prepare_remote_hosts([], prepare_local=True)
 
 build_local = False
 if not args.remote_driver_host:
   build_local = True
-build_on_remote_hosts(remote_hosts, languages=[str(l) for l in languages], build_local=build_local)
+if not args.dry_run:
+  build_on_remote_hosts(remote_hosts, languages=[str(l) for l in languages], build_local=build_local)
 
 qpsworker_jobs = create_qpsworkers(languages, args.remote_worker_host)
 
@@ -443,11 +451,14 @@ if not scenarios:
   raise Exception('No scenarios to run')
 
 for scenario in scenarios:
-  try:
-    for worker in scenario.workers:
-      worker.start()
-    jobset.run([scenario.jobspec,
-                create_quit_jobspec(scenario.workers, remote_host=args.remote_driver_host)],
-               newline_on_success=True, maxjobs=1)
-  finally:
-    finish_qps_workers(scenario.workers)
+  if args.dry_run:
+    print(scenario.name)
+  else:
+    try:
+      for worker in scenario.workers:
+        worker.start()
+      jobset.run([scenario.jobspec,
+                  create_quit_jobspec(scenario.workers, remote_host=args.remote_driver_host)],
+                 newline_on_success=True, maxjobs=1)
+    finally:
+      finish_qps_workers(scenario.workers)
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 19931246cc..e9ee5f538d 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -69,7 +69,7 @@ _FORCE_ENVIRON_FOR_WRAPPERS = {
 
 
 _POLLING_STRATEGIES = {
-  'linux': ['epoll', 'poll', 'legacy']
+  'linux': ['epoll', 'poll', 'poll-cv', 'legacy']
 }
 
 
@@ -999,7 +999,6 @@ argp.add_argument('--compiler',
                            'clang3.4', 'clang3.5', 'clang3.6', 'clang3.7',
                            'vs2010', 'vs2013', 'vs2015',
                            'python2.7', 'python3.4', 'python3.5', 'python3.6', 'pypy', 'pypy3',
-                           'node0.12', 'node4', 'node5',
                            'coreclr'],
                   default='default',
                   help='Selects compiler to use. Allowed values depend on the platform and language.')
@@ -1016,6 +1015,8 @@ argp.add_argument('--update_submodules', default=[], nargs='*',
 argp.add_argument('-a', '--antagonists', default=0, type=int)
 argp.add_argument('-x', '--xml_report', default=None, type=str,
         help='Generates a JUnit-compatible XML report')
+argp.add_argument('--report_suite_name', default='tests', type=str,
+        help='Test suite name to use in generated JUnit XML report')
 argp.add_argument('--force_default_poller', default=False, action='store_const', const=True,
                   help='Dont try to iterate over many polling strategies when they exist')
 args = argp.parse_args()
@@ -1328,7 +1329,8 @@ def _build_and_run(
 
   if build_only:
     if xml_report:
-      report_utils.render_junit_xml_report(resultset, xml_report)
+      report_utils.render_junit_xml_report(resultset, xml_report,
+                                           suite_name=args.report_suite_name)
     return []
 
   # start antagonists
@@ -1380,7 +1382,8 @@ def _build_and_run(
     for antagonist in antagonists:
       antagonist.kill()
     if xml_report and resultset:
-      report_utils.render_junit_xml_report(resultset, xml_report)
+      report_utils.render_junit_xml_report(resultset, xml_report,
+                                           suite_name=args.report_suite_name)
 
   number_failures, _ = jobset.run(
       post_tests_steps, maxjobs=1, stop_on_failure=True,
@@ -1424,7 +1427,7 @@ else:
   exit_code = 0
   if BuildAndRunError.BUILD in errors:
     exit_code |= 1
-  if BuildAndRunError.TEST in errors and not args.travis:
+  if BuildAndRunError.TEST in errors:
     exit_code |= 2
   if BuildAndRunError.POST_TEST in errors:
     exit_code |= 4
diff --git a/tools/run_tests/run_tests_in_workspace.sh b/tools/run_tests/run_tests_in_workspace.sh
new file mode 100755
index 0000000000..98ef3566db
--- /dev/null
+++ b/tools/run_tests/run_tests_in_workspace.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Create a workspace in a subdirectory to allow running multiple builds in isolation.
+# WORKSPACE_NAME env variable needs to contain name of the workspace to create.
+# All cmdline args will be passed to run_tests.py script (executed in the 
+# newly created workspace)
+set -ex
+
+cd $(dirname $0)/../..
+
+rm -rf "${WORKSPACE_NAME}"
+# TODO(jtattermusch): clone --recursive fetches the submodules from github.
+# Try avoiding that to save time and network capacity.
+git clone --recursive . "${WORKSPACE_NAME}"
+
+echo "Running run_tests.py in workspace ${WORKSPACE_NAME}" 
+python "${WORKSPACE_NAME}/tools/run_tests/run_tests.py" $@
+
diff --git a/tools/run_tests/run_tests_matrix.py b/tools/run_tests/run_tests_matrix.py
new file mode 100755
index 0000000000..550dd10ea5
--- /dev/null
+++ b/tools/run_tests/run_tests_matrix.py
@@ -0,0 +1,308 @@
+#!/usr/bin/env python2.7
+# Copyright 2015, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Run test matrix."""
+
+import argparse
+import jobset
+import multiprocessing
+import os
+import report_utils
+import sys
+from filter_pull_request_tests import filter_tests
+
+_ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
+os.chdir(_ROOT)
+
+# Set the timeout high to allow enough time for sanitizers and pre-building
+# clang docker.
+_RUNTESTS_TIMEOUT = 4*60*60
+
+# Number of jobs assigned to each run_tests.py instance
+_INNER_JOBS = 2
+
+
+def _docker_jobspec(name, runtests_args=[]):
+  """Run a single instance of run_tests.py in a docker container"""
+  test_job = jobset.JobSpec(
+          cmdline=['python', 'tools/run_tests/run_tests.py',
+                   '--use_docker',
+                   '-t',
+                   '-j', str(_INNER_JOBS),
+                   '-x', 'report_%s.xml' % name,
+                   '--report_suite_name', '%s' % name] + runtests_args,
+          shortname='run_tests_%s' % name,
+          timeout_seconds=_RUNTESTS_TIMEOUT)
+  return test_job
+
+
+def _workspace_jobspec(name, runtests_args=[], workspace_name=None):
+  """Run a single instance of run_tests.py in a separate workspace"""
+  if not workspace_name:
+    workspace_name = 'workspace_%s' % name
+  env = {'WORKSPACE_NAME': workspace_name}
+  test_job = jobset.JobSpec(
+          cmdline=['tools/run_tests/run_tests_in_workspace.sh',
+                   '-t',
+                   '-j', str(_INNER_JOBS),
+                   '-x', '../report_%s.xml' % name,
+                   '--report_suite_name', '%s' % name] + runtests_args,
+          environ=env,
+          shortname='run_tests_%s' % name,
+          timeout_seconds=_RUNTESTS_TIMEOUT)
+  return test_job
+
+
+def _generate_jobs(languages, configs, platforms,
+                  arch=None, compiler=None,
+                  labels=[], extra_args=[]):
+  result = []
+  for language in languages:
+    for platform in platforms:
+      for config in configs:
+        name = '%s_%s_%s' % (language, platform, config)
+        runtests_args = ['-l', language,
+                         '-c', config]
+        if arch or compiler:
+          name += '_%s_%s' % (arch, compiler)
+          runtests_args += ['--arch', arch,
+                            '--compiler', compiler]
+
+        runtests_args += extra_args
+        if platform == 'linux':
+          job = _docker_jobspec(name=name, runtests_args=runtests_args)
+        else:
+          job = _workspace_jobspec(name=name, runtests_args=runtests_args)
+
+        job.labels = [platform, config, language] + labels
+        result.append(job)
+  return result
+
+
+def _create_test_jobs(extra_args=[]):
+  test_jobs = []
+  # supported on linux only
+  test_jobs += _generate_jobs(languages=['sanity', 'php7'],
+                             configs=['dbg', 'opt'],
+                             platforms=['linux'],
+                             labels=['basictests'],
+                             extra_args=extra_args)
+  
+  # supported on all platforms.
+  test_jobs += _generate_jobs(languages=['c', 'csharp', 'node', 'python'],
+                             configs=['dbg', 'opt'],
+                             platforms=['linux', 'macos', 'windows'],
+                             labels=['basictests'],
+                             extra_args=extra_args)
+  
+  # supported on linux and mac.
+  test_jobs += _generate_jobs(languages=['c++', 'ruby', 'php'],
+                              configs=['dbg', 'opt'],
+                              platforms=['linux', 'macos'],
+                              labels=['basictests'],
+                              extra_args=extra_args)
+  
+  # supported on mac only.
+  test_jobs += _generate_jobs(languages=['objc'],
+                              configs=['dbg', 'opt'],
+                              platforms=['macos'],
+                              labels=['basictests'],
+                              extra_args=extra_args)
+  
+  # sanitizers
+  test_jobs += _generate_jobs(languages=['c'],
+                              configs=['msan', 'asan', 'tsan'],
+                              platforms=['linux'],
+                              labels=['sanitizers'],
+                              extra_args=extra_args)
+  test_jobs += _generate_jobs(languages=['c++'],
+                              configs=['asan', 'tsan'],
+                              platforms=['linux'],
+                              labels=['sanitizers'],
+                              extra_args=extra_args)
+  return test_jobs
+
+  
+def _create_portability_test_jobs(extra_args=[]):
+  test_jobs = []
+  # portability C x86
+  test_jobs += _generate_jobs(languages=['c'],
+                              configs=['dbg'],
+                              platforms=['linux'],
+                              arch='x86',
+                              compiler='default',
+                              labels=['portability'],
+                              extra_args=extra_args)
+  
+  # portability C and C++ on x64
+  for compiler in ['gcc4.4', 'gcc4.6', 'gcc5.3',
+                   'clang3.5', 'clang3.6', 'clang3.7']:
+    test_jobs += _generate_jobs(languages=['c', 'c++'],
+                                configs=['dbg'],
+                                platforms=['linux'],
+                                arch='x64',
+                                compiler=compiler,
+                                labels=['portability'],
+                                extra_args=extra_args)
+  
+  # portability C on Windows
+  for arch in ['x86', 'x64']:
+    for compiler in ['vs2013', 'vs2015']:
+      test_jobs += _generate_jobs(languages=['c'],
+                                  configs=['dbg'],
+                                  platforms=['windows'],
+                                  arch=arch,
+                                  compiler=compiler,
+                                  labels=['portability'],
+                                  extra_args=extra_args)
+  
+  test_jobs += _generate_jobs(languages=['python'],
+                              configs=['dbg'],
+                              platforms=['linux'],
+                              arch='default',
+                              compiler='python3.4',
+                              labels=['portability'],
+                              extra_args=extra_args)
+  
+  test_jobs += _generate_jobs(languages=['csharp'],
+                              configs=['dbg'],
+                              platforms=['linux'],
+                              arch='default',
+                              compiler='coreclr',
+                              labels=['portability'],
+                              extra_args=extra_args)
+  return test_jobs  
+
+
+def _allowed_labels():
+  """Returns a list of existing job labels."""
+  all_labels = set()
+  for job in _create_test_jobs() + _create_portability_test_jobs():
+    for label in job.labels:
+      all_labels.add(label)
+  return sorted(all_labels)
+
+
+argp = argparse.ArgumentParser(description='Run a matrix of run_tests.py tests.')
+argp.add_argument('-j', '--jobs',
+                  default=multiprocessing.cpu_count()/_INNER_JOBS,
+                  type=int,
+                  help='Number of concurrent run_tests.py instances.')
+argp.add_argument('-f', '--filter',
+                  choices=_allowed_labels(),
+                  nargs='+',
+                  default=[],
+                  help='Filter targets to run by label with AND semantics.')
+argp.add_argument('--build_only',
+                  default=False,
+                  action='store_const',
+                  const=True,
+                  help='Pass --build_only flag to run_tests.py instances.')
+argp.add_argument('--force_default_poller', default=False, action='store_const', const=True,
+                  help='Pass --force_default_poller to run_tests.py instances.')
+argp.add_argument('--dry_run',
+                  default=False,
+                  action='store_const',
+                  const=True,
+                  help='Only print what would be run.')
+argp.add_argument('--filter_pr_tests',
+	          default=False,
+		  action='store_const',	
+		  const=True,	  
+		  help='Filters out tests irrelavant to pull request changes.')
+argp.add_argument('--base_branch',
+                  default='origin/master',
+                  type=str,
+                  help='Branch that pull request is requesting to merge into')
+args = argp.parse_args()
+
+extra_args = []
+if args.build_only:
+  extra_args.append('--build_only')
+if args.force_default_poller:
+  extra_args.append('--force_default_poller')
+
+all_jobs = _create_test_jobs(extra_args=extra_args) + _create_portability_test_jobs(extra_args=extra_args)
+
+jobs = []
+for job in all_jobs:
+  if not args.filter or all(filter in job.labels for filter in args.filter):
+    jobs.append(job)
+
+if not jobs:
+  jobset.message('FAILED', 'No test suites match given criteria.',
+                 do_newline=True)
+  sys.exit(1)
+  
+print('IMPORTANT: The changes you are testing need to be locally committed')
+print('because only the committed changes in the current branch will be')
+print('copied to the docker environment or into subworkspaces.')
+
+print 
+print 'Will run these tests:'
+for job in jobs:
+  if args.dry_run:
+    print '  %s: "%s"' % (job.shortname, ' '.join(job.cmdline))
+  else:
+    print '  %s' % job.shortname
+print
+
+if args.filter_pr_tests:
+  print 'IMPORTANT: Test filtering is not active; this is only for testing.'
+  relevant_jobs = filter_tests(jobs, args.base_branch)
+  # todo(mattkwong): add skipped tests to report.xml
+  print
+  if len(relevant_jobs) == len(jobs):
+    print '(TESTING) No tests will be skipped.'
+  else:
+    print '(TESTING) These tests will be skipped:'
+    for job in list(set(jobs) - set(relevant_jobs)):
+      print '  %s' % job.shortname
+  print
+
+if args.dry_run:
+  print '--dry_run was used, exiting'
+  sys.exit(1)
+
+jobset.message('START', 'Running test matrix.', do_newline=True)
+num_failures, resultset = jobset.run(jobs,
+                                     newline_on_success=True,
+                                     travis=True,
+                                     maxjobs=args.jobs)
+report_utils.render_junit_xml_report(resultset, 'report.xml',
+                                     suite_name='aggregate_tests')
+
+if num_failures == 0:
+  jobset.message('SUCCESS', 'All run_tests.py instance finished successfully.',
+                 do_newline=True)
+else:
+  jobset.message('FAILED', 'Some run_tests.py instance have failed.',
+                 do_newline=True)
+  sys.exit(1)
diff --git a/tools/run_tests/sanity/check_sources_and_headers.py b/tools/run_tests/sanity/check_sources_and_headers.py
index ec0876ece2..b733ba173f 100755
--- a/tools/run_tests/sanity/check_sources_and_headers.py
+++ b/tools/run_tests/sanity/check_sources_and_headers.py
@@ -75,14 +75,14 @@ for target in js:
       for line in src:
         m = re_inc1.match(line)
         if m:
-          if not target_has_header(target, m.group(1)):
+          if not target_has_header(target, m.group(1)) and not target['is_filegroup']:
             print (
               'target %s (%s) does not name header %s as a dependency' % (
                 target['name'], fn, m.group(1)))
             errors += 1
         m = re_inc2.match(line)
         if m:
-          if not target_has_header(target, 'include/' + m.group(1)):
+          if not target_has_header(target, 'include/' + m.group(1)) and not target['is_filegroup']:
             print (
               'target %s (%s) does not name header %s as a dependency' % (
                 target['name'], fn, m.group(1)))
diff --git a/tools/run_tests/sanity/check_submodules.sh b/tools/run_tests/sanity/check_submodules.sh
index f1d9d5a57f..6410646cd1 100755
--- a/tools/run_tests/sanity/check_submodules.sh
+++ b/tools/run_tests/sanity/check_submodules.sh
@@ -44,8 +44,7 @@ cat << EOF | awk '{ print $1 }' | sort > $want_submodules
  c880e42ba1c8032d4cdde2aba0541d8a9d9fa2e9 third_party/boringssl (version_for_cocoapods_2.0-100-gc880e42)
  05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
  c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
- 68a86e96481e6bea987df8de47027847b30c325b third_party/nanopb (nanopb-0.3.6-6-g68a86e9)
- bba446bbf2ac7b0b9923d4eb07d5acd0665a8cf0 third_party/protobuf (v3.0.0-beta-4-160-gbba446b)
+ a428e42072765993ff674fda72863c9f1aa2d268 third_party/protobuf (v3.1.0)
  50893291621658f355bc5b4d450a8d06a563053d third_party/zlib (v1.2.8)
  bcad91771b7f0bff28a1cac1981d7ef2b9bcef3c third_party/thrift
 EOF
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 1b8f19a298..c9ded1ff58 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -9,6 +9,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "alarm_test", 
     "src": [
@@ -25,6 +26,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "algorithm_test", 
     "src": [
@@ -39,6 +41,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "alloc_test", 
     "src": [
@@ -55,6 +58,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "alpn_test", 
     "src": [
@@ -71,6 +75,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "api_fuzzer", 
     "src": [
@@ -88,6 +93,7 @@
       "test_tcp_server"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bad_server_response_test", 
     "src": [
@@ -102,6 +108,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bin_decoder_test", 
     "src": [
@@ -116,6 +123,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bin_encoder_test", 
     "src": [
@@ -132,6 +140,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "census_context_test", 
     "src": [
@@ -148,6 +157,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "census_resource_test", 
     "src": [
@@ -164,6 +174,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "census_trace_context_test", 
     "src": [
@@ -180,6 +191,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "channel_create_test", 
     "src": [
@@ -196,6 +208,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "chttp2_hpack_encoder_test", 
     "src": [
@@ -212,6 +225,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "chttp2_status_conversion_test", 
     "src": [
@@ -228,6 +242,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "chttp2_stream_map_test", 
     "src": [
@@ -244,6 +259,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "chttp2_varint_test", 
     "src": [
@@ -260,6 +276,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "client_fuzzer", 
     "src": [
@@ -276,6 +293,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "combiner_test", 
     "src": [
@@ -292,6 +310,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "compression_test", 
     "src": [
@@ -308,6 +327,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "concurrent_connectivity_test", 
     "src": [
@@ -324,6 +344,24 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
+    "name": "connection_refused_test", 
+    "src": [
+      "test/core/end2end/connection_refused_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "dns_resolver_connectivity_test", 
     "src": [
@@ -340,6 +378,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "dns_resolver_test", 
     "src": [
@@ -356,6 +395,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "dualstack_socket_test", 
     "src": [
@@ -372,6 +412,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "endpoint_pair_test", 
     "src": [
@@ -388,6 +429,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "ev_epoll_linux_test", 
     "src": [
@@ -404,6 +446,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fd_conservation_posix_test", 
     "src": [
@@ -420,6 +463,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fd_posix_test", 
     "src": [
@@ -436,6 +480,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fling_client", 
     "src": [
@@ -452,6 +497,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fling_server", 
     "src": [
@@ -468,6 +514,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fling_stream_test", 
     "src": [
@@ -484,6 +531,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "fling_test", 
     "src": [
@@ -498,6 +546,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gen_hpack_tables", 
     "src": [
@@ -509,6 +558,7 @@
   {
     "deps": [], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gen_legal_metadata_characters", 
     "src": [
@@ -520,6 +570,7 @@
   {
     "deps": [], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gen_percent_encoding_tables", 
     "src": [
@@ -536,6 +587,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "goaway_server_test", 
     "src": [
@@ -550,6 +602,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_avl_test", 
     "src": [
@@ -564,6 +617,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_backoff_test", 
     "src": [
@@ -578,6 +632,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_cmdline_test", 
     "src": [
@@ -592,6 +647,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_cpu_test", 
     "src": [
@@ -606,6 +662,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_env_test", 
     "src": [
@@ -620,6 +677,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_histogram_test", 
     "src": [
@@ -634,6 +692,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_host_port_test", 
     "src": [
@@ -648,6 +707,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_log_test", 
     "src": [
@@ -662,6 +722,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_mpscq_test", 
     "src": [
@@ -676,6 +737,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_percent_encoding_test", 
     "src": [
@@ -690,6 +752,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_slice_buffer_test", 
     "src": [
@@ -704,6 +767,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_slice_test", 
     "src": [
@@ -718,6 +782,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_stack_lockfree_test", 
     "src": [
@@ -732,6 +797,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_string_test", 
     "src": [
@@ -746,6 +812,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_sync_test", 
     "src": [
@@ -760,6 +827,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_thd_test", 
     "src": [
@@ -774,6 +842,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_time_test", 
     "src": [
@@ -788,6 +857,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_tls_test", 
     "src": [
@@ -802,6 +872,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_useful_test", 
     "src": [
@@ -818,6 +889,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_auth_context_test", 
     "src": [
@@ -834,6 +906,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_b64_test", 
     "src": [
@@ -850,6 +923,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_byte_buffer_reader_test", 
     "src": [
@@ -866,6 +940,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_channel_args_test", 
     "src": [
@@ -882,6 +957,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_channel_stack_test", 
     "src": [
@@ -898,6 +974,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_completion_queue_test", 
     "src": [
@@ -912,6 +989,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_create_jwt", 
     "src": [
@@ -928,6 +1006,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_credentials_test", 
     "src": [
@@ -944,6 +1023,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_fetch_oauth2", 
     "src": [
@@ -960,6 +1040,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_invalid_channel_args_test", 
     "src": [
@@ -976,6 +1057,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_json_token_test", 
     "src": [
@@ -992,6 +1074,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_jwt_verifier_test", 
     "src": [
@@ -1006,6 +1089,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_print_google_default_creds_token", 
     "src": [
@@ -1022,6 +1106,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_security_connector_test", 
     "src": [
@@ -1036,6 +1121,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_verify_jwt", 
     "src": [
@@ -1052,6 +1138,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "hpack_parser_fuzzer_test", 
     "src": [
@@ -1068,6 +1155,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "hpack_parser_test", 
     "src": [
@@ -1084,6 +1172,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "hpack_table_test", 
     "src": [
@@ -1100,6 +1189,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "http_parser_test", 
     "src": [
@@ -1116,6 +1206,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "http_request_fuzzer_test", 
     "src": [
@@ -1132,6 +1223,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "http_response_fuzzer_test", 
     "src": [
@@ -1148,6 +1240,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "httpcli_format_request_test", 
     "src": [
@@ -1164,6 +1257,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "httpcli_test", 
     "src": [
@@ -1180,6 +1274,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "httpscli_test", 
     "src": [
@@ -1196,6 +1291,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "init_test", 
     "src": [
@@ -1212,6 +1308,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "internal_api_canary_iomgr_test", 
     "src": [
@@ -1228,6 +1325,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "internal_api_canary_support_test", 
     "src": [
@@ -1244,6 +1342,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "internal_api_canary_transport_test", 
     "src": [
@@ -1260,6 +1359,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "invalid_call_argument_test", 
     "src": [
@@ -1276,6 +1376,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_fuzzer_test", 
     "src": [
@@ -1290,6 +1391,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_rewrite", 
     "src": [
@@ -1306,6 +1408,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_rewrite_test", 
     "src": [
@@ -1322,6 +1425,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_stream_error_test", 
     "src": [
@@ -1338,6 +1442,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_test", 
     "src": [
@@ -1354,6 +1459,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "lame_client_test", 
     "src": [
@@ -1370,6 +1476,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "lb_policies_test", 
     "src": [
@@ -1386,6 +1493,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "load_file_test", 
     "src": [
@@ -1402,6 +1510,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "low_level_ping_pong_benchmark", 
     "src": [
@@ -1418,6 +1527,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "message_compress_test", 
     "src": [
@@ -1434,6 +1544,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "mlog_test", 
     "src": [
@@ -1450,6 +1561,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "multiple_server_queues_test", 
     "src": [
@@ -1464,6 +1576,7 @@
       "gpr_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "murmur_hash_test", 
     "src": [
@@ -1480,6 +1593,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "nanopb_fuzzer_response_test", 
     "src": [
@@ -1496,6 +1610,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "nanopb_fuzzer_serverlist_test", 
     "src": [
@@ -1512,6 +1627,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "no_server_test", 
     "src": [
@@ -1528,6 +1644,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "percent_decode_fuzzer", 
     "src": [
@@ -1544,6 +1661,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "percent_encode_fuzzer", 
     "src": [
@@ -1560,6 +1678,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "resolve_address_test", 
     "src": [
@@ -1576,6 +1695,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "secure_channel_create_test", 
     "src": [
@@ -1592,6 +1712,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "secure_endpoint_test", 
     "src": [
@@ -1608,6 +1729,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "sequential_connectivity_test", 
     "src": [
@@ -1624,6 +1746,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "server_chttp2_test", 
     "src": [
@@ -1640,6 +1763,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "server_fuzzer", 
     "src": [
@@ -1656,6 +1780,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "server_test", 
     "src": [
@@ -1673,6 +1798,7 @@
       "test_tcp_server"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "set_initial_connect_string_test", 
     "src": [
@@ -1689,6 +1815,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "sockaddr_resolver_test", 
     "src": [
@@ -1705,6 +1832,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "sockaddr_utils_test", 
     "src": [
@@ -1721,6 +1849,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "socket_utils_test", 
     "src": [
@@ -1737,6 +1866,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "tcp_client_posix_test", 
     "src": [
@@ -1753,6 +1883,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "tcp_posix_test", 
     "src": [
@@ -1769,6 +1900,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "tcp_server_posix_test", 
     "src": [
@@ -1785,6 +1917,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "time_averaged_stats_test", 
     "src": [
@@ -1801,6 +1934,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "timeout_encoding_test", 
     "src": [
@@ -1817,6 +1951,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "timer_heap_test", 
     "src": [
@@ -1833,6 +1968,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "timer_list_test", 
     "src": [
@@ -1849,6 +1985,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "transport_connectivity_state_test", 
     "src": [
@@ -1865,6 +2002,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "transport_metadata_test", 
     "src": [
@@ -1881,6 +2019,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "transport_security_test", 
     "src": [
@@ -1897,6 +2036,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "udp_server_test", 
     "src": [
@@ -1913,6 +2053,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "uri_fuzzer_test", 
     "src": [
@@ -1929,6 +2070,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "uri_parser_test", 
     "src": [
@@ -1942,11 +2084,29 @@
       "gpr", 
       "gpr_test_util", 
       "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
+    "language": "c", 
+    "name": "wakeup_fd_cv_test", 
+    "src": [
+      "test/core/iomgr/wakeup_fd_cv_test.c"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
       "grpc++", 
       "grpc++_test_util", 
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "alarm_cpp_test", 
     "src": [
@@ -1965,6 +2125,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "async_end2end_test", 
     "src": [
@@ -1983,6 +2144,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "auth_property_iterator_test", 
     "src": [
@@ -1998,6 +2160,7 @@
       "grpc++"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "channel_arguments_test", 
     "src": [
@@ -2017,6 +2180,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "cli_call_test", 
     "src": [
@@ -2035,6 +2199,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "client_crash_test", 
     "src": [
@@ -2053,6 +2218,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "client_crash_test_server", 
     "src": [
@@ -2080,6 +2246,7 @@
       "src/proto/grpc/testing/stats.grpc.pb.h", 
       "src/proto/grpc/testing/stats.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "codegen_test_full", 
     "src": [
@@ -2105,6 +2272,7 @@
       "src/proto/grpc/testing/stats.grpc.pb.h", 
       "src/proto/grpc/testing/stats.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "codegen_test_minimal", 
     "src": [
@@ -2120,6 +2288,7 @@
       "grpc++"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "credentials_test", 
     "src": [
@@ -2137,6 +2306,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "cxx_byte_buffer_test", 
     "src": [
@@ -2154,6 +2324,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "cxx_slice_test", 
     "src": [
@@ -2167,6 +2338,7 @@
       "grpc++"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "cxx_string_ref_test", 
     "src": [
@@ -2184,6 +2356,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "cxx_time_test", 
     "src": [
@@ -2202,6 +2375,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "end2end_test", 
     "src": [
@@ -2220,6 +2394,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "filter_end2end_test", 
     "src": [
@@ -2238,6 +2413,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "generic_end2end_test", 
     "src": [
@@ -2256,6 +2432,7 @@
       "src/proto/grpc/testing/compiler_test.grpc.pb.h", 
       "src/proto/grpc/testing/compiler_test.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "golden_file_test", 
     "src": [
@@ -2274,6 +2451,7 @@
       "grpc_cli_libs"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_cli", 
     "src": [
@@ -2287,6 +2465,7 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_cpp_plugin", 
     "src": [
@@ -2300,6 +2479,7 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_csharp_plugin", 
     "src": [
@@ -2313,6 +2493,7 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_node_plugin", 
     "src": [
@@ -2326,6 +2507,7 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_objective_c_plugin", 
     "src": [
@@ -2339,6 +2521,21 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
+    "language": "c++", 
+    "name": "grpc_php_plugin", 
+    "src": [
+      "src/compiler/php_plugin.cc"
+    ], 
+    "third_party": false, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "grpc_plugin_support"
+    ], 
+    "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_python_plugin", 
     "src": [
@@ -2352,6 +2549,7 @@
       "grpc_plugin_support"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_ruby_plugin", 
     "src": [
@@ -2379,6 +2577,7 @@
       "src/proto/grpc/testing/echo_messages.pb.h", 
       "test/cpp/util/string_ref_helper.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_tool_test", 
     "src": [
@@ -2400,6 +2599,7 @@
       "src/proto/grpc/lb/v1/load_balancer.grpc.pb.h", 
       "src/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpclb_api_test", 
     "src": [
@@ -2421,6 +2621,7 @@
       "src/proto/grpc/lb/v1/load_balancer.grpc.pb.h", 
       "src/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpclb_test", 
     "src": [
@@ -2439,6 +2640,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "hybrid_end2end_test", 
     "src": [
@@ -2460,6 +2662,7 @@
       "interop_client_main"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_client", 
     "src": [], 
@@ -2480,6 +2683,7 @@
       "interop_server_main"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_server", 
     "src": [], 
@@ -2494,6 +2698,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_test", 
     "src": [
@@ -2513,6 +2718,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "json_run_localhost", 
     "src": [
@@ -2533,6 +2739,7 @@
       "src/proto/grpc/testing/metrics.pb.h", 
       "test/cpp/util/metrics_server.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "metrics_client", 
     "src": [
@@ -2552,6 +2759,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "mock_test", 
     "src": [
@@ -2573,6 +2781,7 @@
     "headers": [
       "test/cpp/util/proto_reflection_descriptor_database.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "proto_server_reflection_test", 
     "src": [
@@ -2594,6 +2803,7 @@
       "qps"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "qps_interarrival_test", 
     "src": [
@@ -2614,6 +2824,7 @@
       "qps"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "qps_json_driver", 
     "src": [
@@ -2634,6 +2845,7 @@
       "qps"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "qps_openloop_test", 
     "src": [
@@ -2657,6 +2869,7 @@
       "test/cpp/qps/client.h", 
       "test/cpp/qps/server.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "qps_worker", 
     "src": [
@@ -2685,6 +2898,7 @@
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "reconnect_interop_client", 
     "src": [
@@ -2713,6 +2927,7 @@
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "reconnect_interop_server", 
     "src": [
@@ -2731,6 +2946,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "secure_auth_context_test", 
     "src": [
@@ -2750,6 +2966,7 @@
       "qps"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "secure_sync_unary_ping_pong_test", 
     "src": [
@@ -2768,6 +2985,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "server_builder_plugin_test", 
     "src": [
@@ -2786,6 +3004,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "server_crash_test", 
     "src": [
@@ -2804,6 +3023,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "server_crash_test_client", 
     "src": [
@@ -2822,6 +3042,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "shutdown_test", 
     "src": [
@@ -2839,6 +3060,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "status_test", 
     "src": [
@@ -2857,6 +3079,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "streaming_throughput_test", 
     "src": [
@@ -2889,6 +3112,7 @@
       "test/cpp/interop/stress_interop_client.h", 
       "test/cpp/util/metrics_server.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "stress_test", 
     "src": [
@@ -2914,6 +3138,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "thread_stress_test", 
     "src": [
@@ -2928,6 +3153,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c89", 
     "name": "public_headers_must_be_c89", 
     "src": [
@@ -2943,6 +3169,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_aes_test", 
     "src": [], 
@@ -2956,6 +3183,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_asn1_test", 
     "src": [], 
@@ -2969,6 +3197,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_base64_test", 
     "src": [], 
@@ -2982,6 +3211,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bio_test", 
     "src": [], 
@@ -2995,6 +3225,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bn_test", 
     "src": [], 
@@ -3008,6 +3239,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bytestring_test", 
     "src": [], 
@@ -3021,6 +3253,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_aead_test", 
     "src": [], 
@@ -3034,6 +3267,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_cipher_test", 
     "src": [], 
@@ -3047,6 +3281,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_cmac_test", 
     "src": [], 
@@ -3060,6 +3295,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_constant_time_test", 
     "src": [], 
@@ -3073,6 +3309,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ed25519_test", 
     "src": [], 
@@ -3086,6 +3323,7 @@
       "boringssl_x25519_test_lib"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_x25519_test", 
     "src": [], 
@@ -3099,6 +3337,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_dh_test", 
     "src": [], 
@@ -3112,6 +3351,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_digest_test", 
     "src": [], 
@@ -3125,6 +3365,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_dsa_test", 
     "src": [], 
@@ -3138,6 +3379,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ec_test", 
     "src": [], 
@@ -3151,6 +3393,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_example_mul", 
     "src": [], 
@@ -3164,6 +3407,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ecdsa_test", 
     "src": [], 
@@ -3177,6 +3421,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_err_test", 
     "src": [], 
@@ -3190,6 +3435,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_evp_extra_test", 
     "src": [], 
@@ -3203,6 +3449,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_evp_test", 
     "src": [], 
@@ -3216,6 +3463,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pbkdf_test", 
     "src": [], 
@@ -3229,6 +3477,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_hkdf_test", 
     "src": [], 
@@ -3242,6 +3491,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_hmac_test", 
     "src": [], 
@@ -3255,6 +3505,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_lhash_test", 
     "src": [], 
@@ -3268,6 +3519,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_gcm_test", 
     "src": [], 
@@ -3281,6 +3533,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pkcs12_test", 
     "src": [], 
@@ -3294,6 +3547,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pkcs8_test", 
     "src": [], 
@@ -3307,6 +3561,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_poly1305_test", 
     "src": [], 
@@ -3320,6 +3575,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_refcount_test", 
     "src": [], 
@@ -3333,6 +3589,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_rsa_test", 
     "src": [], 
@@ -3346,6 +3603,7 @@
       "boringssl_thread_test_lib"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_thread_test", 
     "src": [], 
@@ -3359,6 +3617,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pkcs7_test", 
     "src": [], 
@@ -3372,6 +3631,7 @@
       "boringssl_x509_test_lib"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_x509_test", 
     "src": [], 
@@ -3385,6 +3645,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_tab_test", 
     "src": [], 
@@ -3398,6 +3659,7 @@
       "boringssl_v3name_test_lib"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_v3name_test", 
     "src": [], 
@@ -3411,6 +3673,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pqueue_test", 
     "src": [], 
@@ -3424,6 +3687,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ssl_test", 
     "src": [], 
@@ -3439,6 +3703,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "badreq_bad_client_test", 
     "src": [
@@ -3456,6 +3721,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "connection_prefix_bad_client_test", 
     "src": [
@@ -3473,6 +3739,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "head_of_line_blocking_bad_client_test", 
     "src": [
@@ -3490,6 +3757,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "headers_bad_client_test", 
     "src": [
@@ -3507,6 +3775,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "initial_settings_frame_bad_client_test", 
     "src": [
@@ -3524,6 +3793,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "large_metadata_bad_client_test", 
     "src": [
@@ -3541,6 +3811,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "server_registered_method_bad_client_test", 
     "src": [
@@ -3558,6 +3829,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "simple_request_bad_client_test", 
     "src": [
@@ -3575,6 +3847,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "unknown_frame_bad_client_test", 
     "src": [
@@ -3592,6 +3865,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "window_overflow_bad_client_test", 
     "src": [
@@ -3609,6 +3883,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bad_ssl_cert_server", 
     "src": [
@@ -3625,6 +3900,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bad_ssl_cert_test", 
     "src": [
@@ -3642,6 +3918,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_census_test", 
     "src": [
@@ -3659,6 +3936,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_compress_test", 
     "src": [
@@ -3676,6 +3954,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_fakesec_test", 
     "src": [
@@ -3693,6 +3972,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_fd_test", 
     "src": [
@@ -3710,6 +3990,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full_test", 
     "src": [
@@ -3727,6 +4008,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full+pipe_test", 
     "src": [
@@ -3744,6 +4026,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full+trace_test", 
     "src": [
@@ -3761,6 +4044,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_http_proxy_test", 
     "src": [
@@ -3778,6 +4062,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_load_reporting_test", 
     "src": [
@@ -3795,6 +4080,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_oauth2_test", 
     "src": [
@@ -3812,6 +4098,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_proxy_test", 
     "src": [
@@ -3829,6 +4116,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair_test", 
     "src": [
@@ -3846,6 +4134,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair+trace_test", 
     "src": [
@@ -3863,6 +4152,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair_1byte_test", 
     "src": [
@@ -3880,6 +4170,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_ssl_test", 
     "src": [
@@ -3897,6 +4188,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_ssl_cert_test", 
     "src": [
@@ -3914,6 +4206,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_ssl_proxy_test", 
     "src": [
@@ -3931,6 +4224,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_uds_test", 
     "src": [
@@ -3948,6 +4242,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_census_nosec_test", 
     "src": [
@@ -3965,6 +4260,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_compress_nosec_test", 
     "src": [
@@ -3982,6 +4278,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_fd_nosec_test", 
     "src": [
@@ -3999,6 +4296,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full_nosec_test", 
     "src": [
@@ -4016,6 +4314,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full+pipe_nosec_test", 
     "src": [
@@ -4033,6 +4332,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_full+trace_nosec_test", 
     "src": [
@@ -4050,6 +4350,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_http_proxy_nosec_test", 
     "src": [
@@ -4067,6 +4368,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_load_reporting_nosec_test", 
     "src": [
@@ -4084,6 +4386,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_proxy_nosec_test", 
     "src": [
@@ -4101,6 +4404,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair_nosec_test", 
     "src": [
@@ -4118,6 +4422,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair+trace_nosec_test", 
     "src": [
@@ -4135,6 +4440,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_sockpair_1byte_nosec_test", 
     "src": [
@@ -4152,6 +4458,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "h2_uds_nosec_test", 
     "src": [
@@ -4168,6 +4475,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "api_fuzzer_one_entry", 
     "src": [
@@ -4185,6 +4493,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "client_fuzzer_one_entry", 
     "src": [
@@ -4202,6 +4511,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "hpack_parser_fuzzer_test_one_entry", 
     "src": [
@@ -4219,6 +4529,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "http_request_fuzzer_test_one_entry", 
     "src": [
@@ -4236,6 +4547,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "http_response_fuzzer_test_one_entry", 
     "src": [
@@ -4253,6 +4565,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "json_fuzzer_test_one_entry", 
     "src": [
@@ -4270,6 +4583,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "nanopb_fuzzer_response_test_one_entry", 
     "src": [
@@ -4287,6 +4601,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "nanopb_fuzzer_serverlist_test_one_entry", 
     "src": [
@@ -4304,6 +4619,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "percent_decode_fuzzer_one_entry", 
     "src": [
@@ -4321,6 +4637,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "percent_encode_fuzzer_one_entry", 
     "src": [
@@ -4338,6 +4655,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "server_fuzzer_one_entry", 
     "src": [
@@ -4355,6 +4673,7 @@
       "grpc_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "uri_fuzzer_test_one_entry", 
     "src": [
@@ -4369,6 +4688,7 @@
       "gpr_base"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr", 
     "src": [], 
@@ -4382,6 +4702,7 @@
     "headers": [
       "test/core/util/test_config.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "gpr_test_util", 
     "src": [
@@ -4409,6 +4730,7 @@
       "grpc_transport_chttp2_server_secure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc", 
     "src": [
@@ -4425,6 +4747,7 @@
       "grpc_transport_cronet_client_secure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_cronet", 
     "src": [
@@ -4439,6 +4762,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_dll", 
     "src": [], 
@@ -4457,6 +4781,7 @@
       "test/core/end2end/data/ssl_test_data.h", 
       "test/core/security/oauth2_utils.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_test_util", 
     "src": [
@@ -4480,6 +4805,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_test_util_unsecure", 
     "src": [], 
@@ -4501,6 +4827,7 @@
       "grpc_transport_chttp2_server_insecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "grpc_unsecure", 
     "src": [
@@ -4521,6 +4848,7 @@
     "headers": [
       "test/core/util/reconnect_server.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "reconnect_server", 
     "src": [
@@ -4540,6 +4868,7 @@
     "headers": [
       "test/core/util/test_tcp_server.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "test_tcp_server", 
     "src": [
@@ -4551,7 +4880,6 @@
   }, 
   {
     "deps": [
-      "gpr", 
       "grpc", 
       "grpc++_base", 
       "grpc++_codegen_base", 
@@ -4563,6 +4891,7 @@
       "src/cpp/common/secure_auth_context.h", 
       "src/cpp/server/secure_server_credentials.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++", 
     "src": [
@@ -4591,6 +4920,7 @@
       "include/grpc++/ext/proto_server_reflection_plugin.h", 
       "src/cpp/ext/proto_server_reflection.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++_reflection", 
     "src": [
@@ -4608,6 +4938,7 @@
       "src/proto/grpc/reflection/v1alpha/reflection.grpc.pb.h", 
       "src/proto/grpc/reflection/v1alpha/reflection.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++_reflection_codegen", 
     "src": [], 
@@ -4619,6 +4950,7 @@
     "headers": [
       "test/cpp/util/test_config.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++_test_config", 
     "src": [
@@ -4652,6 +4984,7 @@
       "test/cpp/util/subprocess.h", 
       "test/cpp/util/test_credentials_provider.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++_test_util", 
     "src": [
@@ -4680,6 +5013,7 @@
       "grpc_unsecure"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc++_unsecure", 
     "src": [
@@ -4693,8 +5027,7 @@
   {
     "deps": [
       "grpc++", 
-      "grpc++_reflection", 
-      "grpc++_test_config"
+      "grpc++_reflection"
     ], 
     "headers": [
       "test/cpp/util/cli_call.h", 
@@ -4705,6 +5038,7 @@
       "test/cpp/util/proto_reflection_descriptor_database.h", 
       "test/cpp/util/service_describer.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_cli_libs", 
     "src": [
@@ -4740,12 +5074,15 @@
       "src/compiler/node_generator_helpers.h", 
       "src/compiler/objective_c_generator.h", 
       "src/compiler/objective_c_generator_helpers.h", 
+      "src/compiler/php_generator.h", 
+      "src/compiler/php_generator_helpers.h", 
       "src/compiler/python_generator.h", 
       "src/compiler/ruby_generator.h", 
       "src/compiler/ruby_generator_helpers-inl.h", 
       "src/compiler/ruby_generator_map-inl.h", 
       "src/compiler/ruby_generator_string-inl.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "grpc_plugin_support", 
     "src": [
@@ -4763,6 +5100,9 @@
       "src/compiler/objective_c_generator.cc", 
       "src/compiler/objective_c_generator.h", 
       "src/compiler/objective_c_generator_helpers.h", 
+      "src/compiler/php_generator.cc", 
+      "src/compiler/php_generator.h", 
+      "src/compiler/php_generator_helpers.h", 
       "src/compiler/python_generator.cc", 
       "src/compiler/python_generator.h", 
       "src/compiler/ruby_generator.cc", 
@@ -4787,6 +5127,7 @@
       "src/proto/grpc/testing/messages.pb.h", 
       "test/cpp/interop/client_helper.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_client_helper", 
     "src": [
@@ -4816,6 +5157,7 @@
       "src/proto/grpc/testing/test.pb.h", 
       "test/cpp/interop/interop_client.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_client_main", 
     "src": [
@@ -4836,6 +5178,7 @@
     "headers": [
       "test/cpp/interop/server_helper.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_server_helper", 
     "src": [
@@ -4864,6 +5207,7 @@
       "src/proto/grpc/testing/test.grpc.pb.h", 
       "src/proto/grpc/testing/test.pb.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_server_lib", 
     "src": [
@@ -4877,6 +5221,7 @@
       "interop_server_lib"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "interop_server_main", 
     "src": [
@@ -4915,6 +5260,7 @@
       "test/cpp/qps/usage_timer.h", 
       "test/cpp/util/benchmark_config.h"
     ], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "qps", 
     "src": [
@@ -4951,6 +5297,7 @@
       "grpc"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "csharp", 
     "name": "grpc_csharp_ext", 
     "src": [
@@ -5070,6 +5417,7 @@
       "third_party/boringssl/ssl/test/scoped_types.h", 
       "third_party/boringssl/ssl/test/test_config.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl", 
     "src": [
@@ -5081,6 +5429,7 @@
   {
     "deps": [], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_test_util", 
     "src": [], 
@@ -5093,6 +5442,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_aes_test_lib", 
     "src": [], 
@@ -5105,6 +5455,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_asn1_test_lib", 
     "src": [], 
@@ -5117,6 +5468,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_base64_test_lib", 
     "src": [], 
@@ -5129,6 +5481,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bio_test_lib", 
     "src": [], 
@@ -5141,6 +5494,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bn_test_lib", 
     "src": [], 
@@ -5153,6 +5507,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_bytestring_test_lib", 
     "src": [], 
@@ -5165,6 +5520,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_aead_test_lib", 
     "src": [], 
@@ -5177,6 +5533,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_cipher_test_lib", 
     "src": [], 
@@ -5189,6 +5546,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_cmac_test_lib", 
     "src": [], 
@@ -5201,6 +5559,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_constant_time_test_lib", 
     "src": [], 
@@ -5213,6 +5572,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ed25519_test_lib", 
     "src": [], 
@@ -5225,6 +5585,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_x25519_test_lib", 
     "src": [], 
@@ -5237,6 +5598,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_dh_test_lib", 
     "src": [], 
@@ -5249,6 +5611,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_digest_test_lib", 
     "src": [], 
@@ -5261,6 +5624,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_dsa_test_lib", 
     "src": [], 
@@ -5273,6 +5637,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ec_test_lib", 
     "src": [], 
@@ -5285,6 +5650,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_example_mul_lib", 
     "src": [], 
@@ -5297,6 +5663,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ecdsa_test_lib", 
     "src": [], 
@@ -5309,6 +5676,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_err_test_lib", 
     "src": [], 
@@ -5321,6 +5689,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_evp_extra_test_lib", 
     "src": [], 
@@ -5333,6 +5702,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_evp_test_lib", 
     "src": [], 
@@ -5345,6 +5715,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pbkdf_test_lib", 
     "src": [], 
@@ -5357,6 +5728,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_hkdf_test_lib", 
     "src": [], 
@@ -5369,6 +5741,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_hmac_test_lib", 
     "src": [], 
@@ -5381,6 +5754,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_lhash_test_lib", 
     "src": [], 
@@ -5393,6 +5767,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_gcm_test_lib", 
     "src": [], 
@@ -5405,6 +5780,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pkcs12_test_lib", 
     "src": [], 
@@ -5417,6 +5793,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_pkcs8_test_lib", 
     "src": [], 
@@ -5429,6 +5806,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_poly1305_test_lib", 
     "src": [], 
@@ -5441,6 +5819,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_refcount_test_lib", 
     "src": [], 
@@ -5453,6 +5832,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_rsa_test_lib", 
     "src": [], 
@@ -5465,6 +5845,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_thread_test_lib", 
     "src": [], 
@@ -5477,6 +5858,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_pkcs7_test_lib", 
     "src": [], 
@@ -5489,6 +5871,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_x509_test_lib", 
     "src": [], 
@@ -5501,6 +5884,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_tab_test_lib", 
     "src": [], 
@@ -5513,6 +5897,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_v3name_test_lib", 
     "src": [], 
@@ -5525,6 +5910,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "boringssl_pqueue_test_lib", 
     "src": [], 
@@ -5537,6 +5923,7 @@
       "boringssl_test_util"
     ], 
     "headers": [], 
+    "is_filegroup": false, 
     "language": "c++", 
     "name": "boringssl_ssl_test_lib", 
     "src": [], 
@@ -5558,6 +5945,7 @@
       "third_party/zlib/zlib.h", 
       "third_party/zlib/zutil.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "z", 
     "src": [], 
@@ -5574,6 +5962,7 @@
     "headers": [
       "test/core/bad_client/bad_client.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bad_client_test", 
     "src": [
@@ -5593,6 +5982,7 @@
     "headers": [
       "test/core/bad_ssl/server_common.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "bad_ssl_test_server", 
     "src": [
@@ -5613,6 +6003,7 @@
       "test/core/end2end/end2end_tests.h", 
       "test/core/end2end/tests/cancel_test_helpers.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "end2end_tests", 
     "src": [
@@ -5678,6 +6069,7 @@
       "test/core/end2end/end2end_tests.h", 
       "test/core/end2end/tests/cancel_test_helpers.h"
     ], 
+    "is_filegroup": false, 
     "language": "c", 
     "name": "end2end_nosec_tests", 
     "src": [
@@ -5751,6 +6143,7 @@
       "src/core/ext/census/rpc_metric_id.h", 
       "src/core/ext/census/trace_context.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "census", 
     "src": [
@@ -5831,6 +6224,7 @@
       "src/core/lib/support/time_precise.h", 
       "src/core/lib/support/tmpfile.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "gpr_base", 
     "src": [
@@ -5941,6 +6335,7 @@
       "include/grpc/impl/codegen/sync_posix.h", 
       "include/grpc/impl/codegen/sync_windows.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "gpr_codegen", 
     "src": [
@@ -5978,6 +6373,7 @@
       "src/core/lib/channel/compress_filter.h", 
       "src/core/lib/channel/connected_channel.h", 
       "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/deadline_filter.h", 
       "src/core/lib/channel/handshaker.h", 
       "src/core/lib/channel/http_client_filter.h", 
       "src/core/lib/channel/http_server_filter.h", 
@@ -6026,6 +6422,7 @@
       "src/core/lib/iomgr/timer_heap.h", 
       "src/core/lib/iomgr/udp_server.h", 
       "src/core/lib/iomgr/unix_sockets_posix.h", 
+      "src/core/lib/iomgr/wakeup_fd_cv.h", 
       "src/core/lib/iomgr/wakeup_fd_pipe.h", 
       "src/core/lib/iomgr/wakeup_fd_posix.h", 
       "src/core/lib/iomgr/workqueue.h", 
@@ -6055,6 +6452,7 @@
       "src/core/lib/transport/transport.h", 
       "src/core/lib/transport/transport_impl.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_base", 
     "src": [
@@ -6076,6 +6474,8 @@
       "src/core/lib/channel/connected_channel.c", 
       "src/core/lib/channel/connected_channel.h", 
       "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/deadline_filter.c", 
+      "src/core/lib/channel/deadline_filter.h", 
       "src/core/lib/channel/handshaker.c", 
       "src/core/lib/channel/handshaker.h", 
       "src/core/lib/channel/http_client_filter.c", 
@@ -6174,6 +6574,8 @@
       "src/core/lib/iomgr/unix_sockets_posix.c", 
       "src/core/lib/iomgr/unix_sockets_posix.h", 
       "src/core/lib/iomgr/unix_sockets_posix_noop.c", 
+      "src/core/lib/iomgr/wakeup_fd_cv.c", 
+      "src/core/lib/iomgr/wakeup_fd_cv.h", 
       "src/core/lib/iomgr/wakeup_fd_eventfd.c", 
       "src/core/lib/iomgr/wakeup_fd_nospecial.c", 
       "src/core/lib/iomgr/wakeup_fd_pipe.c", 
@@ -6265,6 +6667,7 @@
       "src/core/ext/client_config/subchannel_index.h", 
       "src/core/ext/client_config/uri_parser.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_client_config", 
     "src": [
@@ -6319,6 +6722,7 @@
       "include/grpc/impl/codegen/propagation_bits.h", 
       "include/grpc/impl/codegen/status.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_codegen", 
     "src": [
@@ -6344,6 +6748,7 @@
       "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
       "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_grpclb", 
     "src": [
@@ -6364,6 +6769,7 @@
       "grpc_client_config"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_pick_first", 
     "src": [
@@ -6379,6 +6785,7 @@
       "grpc_client_config"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_round_robin", 
     "src": [
@@ -6396,6 +6803,7 @@
       "src/core/ext/load_reporting/load_reporting.h", 
       "src/core/ext/load_reporting/load_reporting_filter.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_load_reporting", 
     "src": [
@@ -6414,6 +6822,7 @@
       "grpc_client_config"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_resolver_dns_native", 
     "src": [
@@ -6429,6 +6838,7 @@
       "grpc_client_config"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_resolver_sockaddr", 
     "src": [
@@ -6466,6 +6876,7 @@
       "src/core/lib/security/util/b64.h", 
       "src/core/lib/security/util/json_util.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_secure", 
     "src": [
@@ -6525,6 +6936,7 @@
     ], 
     "headers": [
       "test/core/end2end/cq_verifier.h", 
+      "test/core/end2end/fake_resolver.h", 
       "test/core/end2end/fixtures/http_proxy.h", 
       "test/core/end2end/fixtures/proxy.h", 
       "test/core/iomgr/endpoint_tests.h", 
@@ -6537,11 +6949,14 @@
       "test/core/util/port_server_client.h", 
       "test/core/util/slice_splitter.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_test_util_base", 
     "src": [
       "test/core/end2end/cq_verifier.c", 
       "test/core/end2end/cq_verifier.h", 
+      "test/core/end2end/fake_resolver.c", 
+      "test/core/end2end/fake_resolver.h", 
       "test/core/end2end/fixtures/http_proxy.c", 
       "test/core/end2end/fixtures/http_proxy.h", 
       "test/core/end2end/fixtures/proxy.c", 
@@ -6597,6 +7012,7 @@
       "src/core/ext/transport/chttp2/transport/stream_map.h", 
       "src/core/ext/transport/chttp2/transport/varint.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2", 
     "src": [
@@ -6652,6 +7068,7 @@
     "headers": [
       "src/core/ext/transport/chttp2/alpn/alpn.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2_alpn", 
     "src": [
@@ -6669,6 +7086,7 @@
       "grpc_transport_chttp2"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2_client_insecure", 
     "src": [
@@ -6687,6 +7105,7 @@
       "grpc_transport_chttp2"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2_client_secure", 
     "src": [
@@ -6702,6 +7121,7 @@
       "grpc_transport_chttp2"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2_server_insecure", 
     "src": [
@@ -6719,6 +7139,7 @@
       "grpc_transport_chttp2"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_chttp2_server_secure", 
     "src": [
@@ -6738,6 +7159,7 @@
       "include/grpc/grpc_security_constants.h", 
       "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_transport_cronet_client_secure", 
     "src": [
@@ -6759,6 +7181,7 @@
       "third_party/nanopb/pb_decode.h", 
       "third_party/nanopb/pb_encode.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "nanopb", 
     "src": [], 
@@ -6776,6 +7199,7 @@
       "src/core/lib/tsi/transport_security.h", 
       "src/core/lib/tsi/transport_security_interface.h"
     ], 
+    "is_filegroup": true, 
     "language": "c", 
     "name": "tsi", 
     "src": [
@@ -6793,9 +7217,7 @@
   }, 
   {
     "deps": [
-      "gpr", 
-      "grpc++_codegen_base", 
-      "grpc_base"
+      "grpc++_codegen_base"
     ], 
     "headers": [
       "include/grpc++/alarm.h", 
@@ -6850,6 +7272,7 @@
       "src/cpp/server/dynamic_thread_pool.h", 
       "src/cpp/server/thread_pool_interface.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_base", 
     "src": [
@@ -6970,6 +7393,7 @@
       "include/grpc++/impl/codegen/sync_stream.h", 
       "include/grpc++/impl/codegen/time.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_codegen_base", 
     "src": [
@@ -7013,6 +7437,7 @@
       "grpc++_codegen_base"
     ], 
     "headers": [], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_codegen_base_src", 
     "src": [
@@ -7029,6 +7454,7 @@
     "headers": [
       "include/grpc++/impl/codegen/proto_utils.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_codegen_proto", 
     "src": [
@@ -7042,6 +7468,7 @@
     "headers": [
       "include/grpc++/impl/codegen/config_protobuf.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_config_proto", 
     "src": [
@@ -7058,6 +7485,7 @@
       "include/grpc++/ext/reflection.grpc.pb.h", 
       "include/grpc++/ext/reflection.pb.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "grpc++_reflection_proto", 
     "src": [
@@ -7077,6 +7505,7 @@
       "include/grpc++/impl/codegen/thrift_serializer.h", 
       "include/grpc++/impl/codegen/thrift_utils.h"
     ], 
+    "is_filegroup": true, 
     "language": "c++", 
     "name": "thrift_util", 
     "src": [
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index 6500c4aac3..323c09c77f 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -392,6 +392,27 @@
     "flaky": false, 
     "gtest": false, 
     "language": "c", 
+    "name": "connection_refused_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 0.1, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
     "name": "dns_resolver_connectivity_test", 
     "platforms": [
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@@ -2045,6 +2066,25 @@
     "ci_platforms": [
       "linux", 
       "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "gtest": false, 
+    "language": "c", 
+    "name": "wakeup_fd_cv_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
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       "windows"
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@@ -31465,10 +31505,7 @@
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@@ -31477,10 +31514,7 @@
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-      "posix", 
-      "windows"
+      "linux"
     ], 
     "shortname": "json_run_localhost:cpp_generic_async_streaming_ping_pong_secure", 
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@@ -31492,10 +31526,7 @@
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@@ -31504,10 +31535,7 @@
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-      "windows"
+      "linux"
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@@ -31519,10 +31547,7 @@
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@@ -31531,10 +31556,7 @@
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-      "windows"
+      "linux"
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@@ -31546,10 +31568,7 @@
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@@ -31558,10 +31577,7 @@
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+      "linux"
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@@ -31573,10 +31589,7 @@
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@@ -31585,10 +31598,7 @@
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+      "linux"
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     "timeout_seconds": 180
@@ -31596,770 +31606,11 @@
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@@ -34933,10 +31703,7 @@
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@@ -34960,10 +31724,7 @@
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-      "linux", 
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-      "windows"
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-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c++", 
-    "name": "json_run_localhost", 
-    "platforms": [
-      "linux", 
-      "mac", 
-      "posix", 
-      "windows"
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diff --git a/tools/tsan_suppressions.txt b/tools/tsan_suppressions.txt
index 09e68cd233..765fa098f9 100644
--- a/tools/tsan_suppressions.txt
+++ b/tools/tsan_suppressions.txt
@@ -6,3 +6,6 @@ race:cleanse_ctr
 race:ssleay_rand_add
 race:ssleay_rand_bytes
 race:__sleep_for
+# protobuf has an idempotent write race in ByteSize
+# https://github.com/google/protobuf/issues/2169
+race:ByteSize
author	Sree Kuchibhotla <sreek@google.com>	2016-10-17 14:15:50 -0700
committer	Sree Kuchibhotla <sreek@google.com>	2016-10-17 14:15:50 -0700
commit	34ad82d6f683b06ecb3844769ef53784d8cba30b (patch)
tree	27551d64348144de399c7f874adfedbf919458d3 /tools
parent	923d641c27f0ebcceb67a28fd17168ac34e7bf5e (diff)
parent	872559593329f1a6903d0b41f669eb4ba719dbe8 (diff)