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+/*
+ *
+ * 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.
+ *
+ */
+
+/* Microbenchmarks around CHTTP2 operations */
+
+#include <grpc/support/log.h>
+#include <string.h>
+#include <sstream>
+extern "C" {
+#include "src/core/ext/transport/chttp2/transport/hpack_encoder.h"
+#include "src/core/ext/transport/chttp2/transport/hpack_parser.h"
+#include "src/core/lib/slice/slice_internal.h"
+#include "src/core/lib/transport/static_metadata.h"
+}
+#include "third_party/benchmark/include/benchmark/benchmark.h"
+
+static struct Init {
+ Init() { grpc_init(); }
+ ~Init() { grpc_shutdown(); }
+} g_init;
+
+////////////////////////////////////////////////////////////////////////////////
+// HPACK encoder
+//
+
+static void BM_HpackEncoderInitDestroy(benchmark::State &state) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_chttp2_hpack_compressor c;
+ while (state.KeepRunning()) {
+ grpc_chttp2_hpack_compressor_init(&c);
+ grpc_chttp2_hpack_compressor_destroy(&exec_ctx, &c);
+ grpc_exec_ctx_flush(&exec_ctx);
+ }
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_HpackEncoderInitDestroy);
+
+template <class Fixture>
+static void BM_HpackEncoderEncodeHeader(benchmark::State &state) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+ grpc_metadata_batch b;
+ grpc_metadata_batch_init(&b);
+ std::vector<grpc_mdelem> elems = Fixture::GetElems(&exec_ctx);
+ std::vector<grpc_linked_mdelem> storage(elems.size());
+ for (size_t i = 0; i < elems.size(); i++) {
+ GPR_ASSERT(GRPC_LOG_IF_ERROR(
+ "addmd",
+ grpc_metadata_batch_add_tail(&exec_ctx, &b, &storage[i], elems[i])));
+ }
+
+ grpc_chttp2_hpack_compressor c;
+ grpc_chttp2_hpack_compressor_init(&c);
+ grpc_transport_one_way_stats stats;
+ memset(&stats, 0, sizeof(stats));
+ grpc_slice_buffer outbuf;
+ grpc_slice_buffer_init(&outbuf);
+ while (state.KeepRunning()) {
+ grpc_chttp2_encode_header(&exec_ctx, &c, (uint32_t)state.iterations(), &b,
+ state.range(0), state.range(1), &stats, &outbuf);
+ grpc_slice_buffer_reset_and_unref_internal(&exec_ctx, &outbuf);
+ grpc_exec_ctx_flush(&exec_ctx);
+ }
+ grpc_metadata_batch_destroy(&exec_ctx, &b);
+ grpc_chttp2_hpack_compressor_destroy(&exec_ctx, &c);
+ grpc_exec_ctx_finish(&exec_ctx);
+
+ std::ostringstream label;
+ label << "framing_bytes/iter:" << (static_cast<double>(stats.framing_bytes) /
+ static_cast<double>(state.iterations()))
+ << " header_bytes/iter:" << (static_cast<double>(stats.header_bytes) /
+ static_cast<double>(state.iterations()));
+ state.SetLabel(label.str());
+}
+
+namespace hpack_encoder_fixtures {
+
+class EmptyBatch {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {};
+ }
+};
+
+class SingleStaticElem {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE};
+ }
+};
+
+class SingleInternedElem {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {grpc_mdelem_from_slices(
+ exec_ctx, grpc_slice_intern(grpc_slice_from_static_string("abc")),
+ grpc_slice_intern(grpc_slice_from_static_string("def")))};
+ }
+};
+
+class SingleInternedKeyElem {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {grpc_mdelem_from_slices(
+ exec_ctx, grpc_slice_intern(grpc_slice_from_static_string("abc")),
+ grpc_slice_from_static_string("def"))};
+ }
+};
+
+class SingleNonInternedElem {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {grpc_mdelem_from_slices(exec_ctx,
+ grpc_slice_from_static_string("abc"),
+ grpc_slice_from_static_string("def"))};
+ }
+};
+
+class RepresentativeClientInitialMetadata {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {
+ GRPC_MDELEM_SCHEME_HTTP, GRPC_MDELEM_METHOD_POST,
+ grpc_mdelem_from_slices(
+ exec_ctx, GRPC_MDSTR_PATH,
+ grpc_slice_intern(grpc_slice_from_static_string("/foo/bar"))),
+ grpc_mdelem_from_slices(exec_ctx, GRPC_MDSTR_AUTHORITY,
+ grpc_slice_intern(grpc_slice_from_static_string(
+ "foo.test.google.fr:1234"))),
+ GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP,
+ GRPC_MDELEM_TE_TRAILERS,
+ GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC,
+ grpc_mdelem_from_slices(
+ exec_ctx, GRPC_MDSTR_USER_AGENT,
+ grpc_slice_intern(grpc_slice_from_static_string(
+ "grpc-c/3.0.0-dev (linux; chttp2; green)")))};
+ }
+};
+
+class RepresentativeServerInitialMetadata {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {GRPC_MDELEM_STATUS_200,
+ GRPC_MDELEM_CONTENT_TYPE_APPLICATION_SLASH_GRPC,
+ GRPC_MDELEM_GRPC_ACCEPT_ENCODING_IDENTITY_COMMA_DEFLATE_COMMA_GZIP};
+ }
+};
+
+class RepresentativeServerTrailingMetadata {
+ public:
+ static std::vector<grpc_mdelem> GetElems(grpc_exec_ctx *exec_ctx) {
+ return {GRPC_MDELEM_GRPC_STATUS_0};
+ }
+};
+
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, EmptyBatch)->Args({0, 16384});
+// test with eof (shouldn't affect anything)
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, EmptyBatch)->Args({1, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, SingleStaticElem)
+ ->Args({0, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, SingleInternedKeyElem)
+ ->Args({0, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, SingleInternedElem)
+ ->Args({0, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, SingleNonInternedElem)
+ ->Args({0, 16384});
+// test with a tiny frame size, to highlight continuation costs
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader, SingleNonInternedElem)
+ ->Args({0, 1});
+
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader,
+ RepresentativeClientInitialMetadata)
+ ->Args({0, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader,
+ RepresentativeServerInitialMetadata)
+ ->Args({0, 16384});
+BENCHMARK_TEMPLATE(BM_HpackEncoderEncodeHeader,
+ RepresentativeServerTrailingMetadata)
+ ->Args({1, 16384});
+
+} // namespace hpack_encoder_fixtures
+
+////////////////////////////////////////////////////////////////////////////////
+// HPACK parser
+//
+
+static void BM_HpackParserInitDestroy(benchmark::State &state) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ grpc_chttp2_hpack_parser p;
+ while (state.KeepRunning()) {
+ grpc_chttp2_hpack_parser_init(&exec_ctx, &p);
+ grpc_chttp2_hpack_parser_destroy(&exec_ctx, &p);
+ grpc_exec_ctx_flush(&exec_ctx);
+ }
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_HpackParserInitDestroy);
+
+static void UnrefHeader(grpc_exec_ctx *exec_ctx, void *user_data,
+ grpc_mdelem md) {
+ GRPC_MDELEM_UNREF(exec_ctx, md);
+}
+
+template <class Fixture>
+static void BM_HpackParserParseHeader(benchmark::State &state) {
+ grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+ std::vector<grpc_slice> init_slices = Fixture::GetInitSlices();
+ std::vector<grpc_slice> benchmark_slices = Fixture::GetBenchmarkSlices();
+ grpc_chttp2_hpack_parser p;
+ grpc_chttp2_hpack_parser_init(&exec_ctx, &p);
+ p.on_header = UnrefHeader;
+ p.on_header_user_data = nullptr;
+ for (auto slice : init_slices) {
+ grpc_chttp2_hpack_parser_parse(&exec_ctx, &p, slice);
+ }
+ while (state.KeepRunning()) {
+ for (auto slice : benchmark_slices) {
+ grpc_chttp2_hpack_parser_parse(&exec_ctx, &p, slice);
+ }
+ grpc_exec_ctx_flush(&exec_ctx);
+ }
+ grpc_chttp2_hpack_parser_destroy(&exec_ctx, &p);
+ grpc_exec_ctx_finish(&exec_ctx);
+}
+
+namespace hpack_parser_fixtures {
+
+static grpc_slice MakeSlice(std::initializer_list<uint8_t> bytes) {
+ grpc_slice s = grpc_slice_malloc(bytes.size());
+ uint8_t *p = GRPC_SLICE_START_PTR(s);
+ for (auto b : bytes) {
+ *p++ = b;
+ }
+ return s;
+}
+
+class EmptyBatch {
+ public:
+ static std::vector<grpc_slice> GetInitSlices() { return {}; }
+ static std::vector<grpc_slice> GetBenchmarkSlices() {
+ return {MakeSlice({})};
+ }
+};
+
+class IndexedSingleStaticElem {
+ public:
+ static std::vector<grpc_slice> GetInitSlices() {
+ return {MakeSlice(
+ {0x40, 0x07, ':', 's', 't', 'a', 't', 'u', 's', 0x03, '2', '0', '0'})};
+ }
+ static std::vector<grpc_slice> GetBenchmarkSlices() {
+ return {MakeSlice({0xbf})};
+ }
+};
+
+BENCHMARK_TEMPLATE(BM_HpackParserParseHeader, EmptyBatch);
+
+} // namespace hpack_parser_fixtures
+
+BENCHMARK_MAIN();