1 files changed, 76 insertions, 0 deletions
diff --git a/test/cpp/microbenchmarks/bm_arena.cc b/test/cpp/microbenchmarks/bm_arena.cc
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+++ b/test/cpp/microbenchmarks/bm_arena.cc
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+/*
+ *
+ * Copyright 2017, 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.
+ *
+ */
+
+/* Benchmark arenas */
+
+extern "C" {
+#include "src/core/lib/support/arena.h"
+}
+#include "test/cpp/microbenchmarks/helpers.h"
+#include "third_party/benchmark/include/benchmark/benchmark.h"
+
+static void BM_Arena_NoOp(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    gpr_arena_destroy(gpr_arena_create(state.range(0)));
+  }
+}
+BENCHMARK(BM_Arena_NoOp)->Range(1, 1024 * 1024);
+
+static void BM_Arena_ManyAlloc(benchmark::State& state) {
+  gpr_arena* a = gpr_arena_create(state.range(0));
+  const size_t realloc_after =
+      1024 * 1024 * 1024 / ((state.range(1) + 15) & 0xffffff0u);
+  while (state.KeepRunning()) {
+    gpr_arena_alloc(a, state.range(1));
+    // periodically recreate arena to avoid OOM
+    if (state.iterations() % realloc_after == 0) {
+      gpr_arena_destroy(a);
+      a = gpr_arena_create(state.range(0));
+    }
+  }
+  gpr_arena_destroy(a);
+}
+BENCHMARK(BM_Arena_ManyAlloc)->Ranges({{1, 1024 * 1024}, {1, 32 * 1024}});
+
+static void BM_Arena_Batch(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    gpr_arena* a = gpr_arena_create(state.range(0));
+    for (int i = 0; i < state.range(1); i++) {
+      gpr_arena_alloc(a, state.range(2));
+    }
+    gpr_arena_destroy(a);
+  }
+}
+BENCHMARK(BM_Arena_Batch)->Ranges({{1, 64 * 1024}, {1, 64}, {1, 1024}});
+
+BENCHMARK_MAIN();