Index: mojo/public/cpp/environment/tests/run_loop_async_wait_perftest.cc |
diff --git a/mojo/public/cpp/environment/tests/run_loop_async_wait_perftest.cc b/mojo/public/cpp/environment/tests/run_loop_async_wait_perftest.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c93cc76f0d3c360c5f997510e7c46e969329a88f |
--- /dev/null |
+++ b/mojo/public/cpp/environment/tests/run_loop_async_wait_perftest.cc |
@@ -0,0 +1,47 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+// This file has perf tests for async waits using |mojo::RunLoop| (i.e., the |
+// "standalone" |Environment|). |
+ |
+#include <stdio.h> |
+ |
+#include "mojo/public/c/environment/tests/async_waiter_perftest_helpers.h" |
+#include "mojo/public/cpp/environment/environment.h" |
+#include "mojo/public/cpp/test_support/test_support.h" |
+#include "mojo/public/cpp/utility/run_loop.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace mojo { |
+namespace { |
+ |
+constexpr MojoTimeTicks kPerftestTimeMicroseconds = 3 * 1000000; |
+ |
+TEST(RunLoopAsyncWaitPerftest, SingleThreaded) { |
+ for (uint32_t num_handles = 1u; num_handles <= 10000u; num_handles *= 10u) { |
+ RunLoop run_loop; |
+ |
+ MojoTimeTicks start_time = 0; |
+ MojoTimeTicks end_time = 0; |
+ uint64_t raw_result = test::DoAsyncWaiterPerfTest( |
+ Environment::GetDefaultAsyncWaiter(), num_handles, |
+ [&start_time, &end_time]() { |
+ RunLoop::current()->PostDelayedTask( |
+ []() { RunLoop::current()->Quit(); }, kPerftestTimeMicroseconds); |
+ start_time = MojoGetTimeTicksNow(); |
+ RunLoop::current()->Run(); |
+ end_time = MojoGetTimeTicksNow(); |
+ }); |
+ |
+ double result = static_cast<double>(raw_result) / |
+ (static_cast<double>(end_time - start_time) / 1000000.0); |
+ char sub_test_name[100] = {}; |
+ sprintf(sub_test_name, "%u", static_cast<unsigned>(num_handles)); |
+ test::LogPerfResult("RunLoopAsyncWaitPerftest.SingleThreaded", |
+ sub_test_name, result, "callbacks/second"); |
+ } |
+} |
+ |
+} // namespace |
+} // namespace mojo |