Add a benchmark for metadata primitives

1 files changed, 282 insertions, 0 deletions

diff --git a/test/cpp/microbenchmarks/bm_metadata.cc b/test/cpp/microbenchmarks/bm_metadata.cc
new file mode 100644
index 0000000000..7f81fbabcc
--- /dev/null
+++ b/test/cpp/microbenchmarks/bm_metadata.cc
@@ -0,0 +1,282 @@
+/*
+ *
+ * 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.
+ *
+ */
+
+/* Test out various metadata handling primitives */
+
+#include <grpc/grpc.h>
+
+extern "C" {
+#include "src/core/lib/transport/metadata.h"
+#include "src/core/lib/transport/static_metadata.h"
+}
+
+#include "third_party/benchmark/include/benchmark/benchmark.h"
+
+static class InitializeStuff {
+ public:
+  InitializeStuff() { grpc_init(); }
+  ~InitializeStuff() { grpc_shutdown(); }
+} initialize_stuff;
+
+static void BM_SliceFromStatic(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    benchmark::DoNotOptimize(grpc_slice_from_static_string("abc"));
+  }
+}
+BENCHMARK(BM_SliceFromStatic);
+
+static void BM_SliceFromCopied(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    grpc_slice_unref(grpc_slice_from_copied_string("abc"));
+  }
+}
+BENCHMARK(BM_SliceFromCopied);
+
+static void BM_SliceIntern(benchmark::State& state) {
+  gpr_slice slice = grpc_slice_from_static_string("abc");
+  while (state.KeepRunning()) {
+    grpc_slice_unref(grpc_slice_intern(slice));
+  }
+}
+BENCHMARK(BM_SliceIntern);
+
+static void BM_SliceReIntern(benchmark::State& state) {
+  gpr_slice slice = grpc_slice_intern(grpc_slice_from_static_string("abc"));
+  while (state.KeepRunning()) {
+    grpc_slice_unref(grpc_slice_intern(slice));
+  }
+  grpc_slice_unref(slice);
+}
+BENCHMARK(BM_SliceReIntern);
+
+static void BM_SliceInternStaticMetadata(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    grpc_slice_intern(GRPC_MDSTR_GZIP);
+  }
+}
+BENCHMARK(BM_SliceInternStaticMetadata);
+
+static void BM_SliceInternEqualToStaticMetadata(benchmark::State& state) {
+  gpr_slice slice = grpc_slice_from_static_string("gzip");
+  while (state.KeepRunning()) {
+    grpc_slice_intern(slice);
+  }
+}
+BENCHMARK(BM_SliceInternEqualToStaticMetadata);
+
+static void BM_MetadataFromNonInternedSlices(benchmark::State& state) {
+  gpr_slice k = grpc_slice_from_static_string("key");
+  gpr_slice v = grpc_slice_from_static_string("value");
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataFromNonInternedSlices);
+
+static void BM_MetadataFromInternedSlices(benchmark::State& state) {
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_intern(grpc_slice_from_static_string("value"));
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+  grpc_slice_unref(v);
+}
+BENCHMARK(BM_MetadataFromInternedSlices);
+
+static void BM_MetadataFromInternedSlicesAlreadyInIndex(
+    benchmark::State& state) {
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_intern(grpc_slice_from_static_string("value"));
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_mdelem seed = grpc_mdelem_create(&exec_ctx, k, v, NULL);
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  GRPC_MDELEM_UNREF(&exec_ctx, seed);
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+  grpc_slice_unref(v);
+}
+BENCHMARK(BM_MetadataFromInternedSlicesAlreadyInIndex);
+
+static void BM_MetadataFromInternedKey(benchmark::State& state) {
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_from_static_string("value");
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+}
+BENCHMARK(BM_MetadataFromInternedKey);
+
+static void BM_MetadataFromNonInternedSlicesWithBackingStore(
+    benchmark::State& state) {
+  gpr_slice k = grpc_slice_from_static_string("key");
+  gpr_slice v = grpc_slice_from_static_string("value");
+  char backing_store[sizeof(grpc_mdelem_data)];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(
+        &exec_ctx,
+        grpc_mdelem_create(&exec_ctx, k, v,
+                           reinterpret_cast<grpc_mdelem_data*>(backing_store)));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataFromNonInternedSlicesWithBackingStore);
+
+static void BM_MetadataFromInternedSlicesWithBackingStore(
+    benchmark::State& state) {
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_intern(grpc_slice_from_static_string("value"));
+  char backing_store[sizeof(grpc_mdelem_data)];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(
+        &exec_ctx,
+        grpc_mdelem_create(&exec_ctx, k, v,
+                           reinterpret_cast<grpc_mdelem_data*>(backing_store)));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+  grpc_slice_unref(v);
+}
+BENCHMARK(BM_MetadataFromInternedSlicesWithBackingStore);
+
+static void BM_MetadataFromInternedKeyWithBackingStore(
+    benchmark::State& state) {
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_from_static_string("value");
+  char backing_store[sizeof(grpc_mdelem_data)];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(
+        &exec_ctx,
+        grpc_mdelem_create(&exec_ctx, k, v,
+                           reinterpret_cast<grpc_mdelem_data*>(backing_store)));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+}
+BENCHMARK(BM_MetadataFromInternedKeyWithBackingStore);
+
+static void BM_MetadataFromStaticMetadataStrings(benchmark::State& state) {
+  gpr_slice k = GRPC_MDSTR_STATUS;
+  gpr_slice v = GRPC_MDSTR_200;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+}
+BENCHMARK(BM_MetadataFromStaticMetadataStrings);
+
+static void BM_MetadataFromStaticMetadataStringsNotIndexed(
+    benchmark::State& state) {
+  gpr_slice k = GRPC_MDSTR_STATUS;
+  gpr_slice v = GRPC_MDSTR_GZIP;
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, grpc_mdelem_create(&exec_ctx, k, v, NULL));
+  }
+  grpc_exec_ctx_finish(&exec_ctx);
+  grpc_slice_unref(k);
+}
+BENCHMARK(BM_MetadataFromStaticMetadataStringsNotIndexed);
+
+static void BM_MetadataRefUnrefExternal(benchmark::State& state) {
+  char backing_store[sizeof(grpc_mdelem_data)];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_mdelem el =
+      grpc_mdelem_create(&exec_ctx, grpc_slice_from_static_string("a"),
+                         grpc_slice_from_static_string("b"),
+                         reinterpret_cast<grpc_mdelem_data*>(backing_store));
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, GRPC_MDELEM_REF(el));
+  }
+  GRPC_MDELEM_UNREF(&exec_ctx, el);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataRefUnrefExternal);
+
+static void BM_MetadataRefUnrefInterned(benchmark::State& state) {
+  char backing_store[sizeof(grpc_mdelem_data)];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  gpr_slice k = grpc_slice_intern(grpc_slice_from_static_string("key"));
+  gpr_slice v = grpc_slice_intern(grpc_slice_from_static_string("value"));
+  grpc_mdelem el = grpc_mdelem_create(
+      &exec_ctx, k, v, reinterpret_cast<grpc_mdelem_data*>(backing_store));
+  grpc_slice_unref(k);
+  grpc_slice_unref(v);
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, GRPC_MDELEM_REF(el));
+  }
+  GRPC_MDELEM_UNREF(&exec_ctx, el);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataRefUnrefInterned);
+
+static void BM_MetadataRefUnrefAllocated(benchmark::State& state) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_mdelem el =
+      grpc_mdelem_create(&exec_ctx, grpc_slice_from_static_string("a"),
+                         grpc_slice_from_static_string("b"), NULL);
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, GRPC_MDELEM_REF(el));
+  }
+  GRPC_MDELEM_UNREF(&exec_ctx, el);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataRefUnrefAllocated);
+
+static void BM_MetadataRefUnrefStatic(benchmark::State& state) {
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+  grpc_mdelem el =
+      grpc_mdelem_create(&exec_ctx, GRPC_MDSTR_STATUS, GRPC_MDSTR_200, NULL);
+  while (state.KeepRunning()) {
+    GRPC_MDELEM_UNREF(&exec_ctx, GRPC_MDELEM_REF(el));
+  }
+  GRPC_MDELEM_UNREF(&exec_ctx, el);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+BENCHMARK(BM_MetadataRefUnrefStatic);
+
+BENCHMARK_MAIN();