Add performance tests for rtc::Event.
Bug: webrtc:8546
Change-Id: Ic069b213b5c0d83123a6506f10c597cf73396459
Reviewed-on: https://webrtc-review.googlesource.com/23960
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20797}diff --git a/rtc_base/event_unittest.cc b/rtc_base/event_unittest.cc
index 5a2f844..a9324a0 100644
--- a/rtc_base/event_unittest.cc
+++ b/rtc_base/event_unittest.cc
@@ -10,6 +10,7 @@
#include "rtc_base/event.h"
#include "rtc_base/gunit.h"
+#include "rtc_base/platform_thread.h"
namespace rtc {
@@ -39,4 +40,55 @@
ASSERT_FALSE(event.Wait(0));
}
+class SignalerThread {
+public:
+ SignalerThread() : thread_(&ThreadFn, this, "EventPerf") {}
+ void Start(Event* writer, Event* reader) {
+ writer_ = writer;
+ reader_ = reader;
+ thread_.Start();
+ }
+ void Stop() {
+ stop_event_.Set();
+ thread_.Stop();
+ }
+ static void ThreadFn(void *param) {
+ auto* me = static_cast<SignalerThread*>(param);
+ while(!me->stop_event_.Wait(0)) {
+ me->writer_->Set();
+ me->reader_->Wait(Event::kForever);
+ }
+ }
+ Event stop_event_{false, false};
+ Event* writer_;
+ Event* reader_;
+ PlatformThread thread_;
+};
+
+// These tests are disabled by default and only intended to be run manually.
+TEST(EventTest, PerformanceSingleThread) {
+ static const int kNumIterations = 10000000;
+ Event event(false, false);
+ for (int i = 0; i < kNumIterations; ++i) {
+ event.Set();
+ event.Wait(0);
+ }
+}
+
+TEST(EventTest, PerformanceMultiThread) {
+ static const int kNumIterations = 10000;
+ Event read(false, false);
+ Event write(false, false);
+ SignalerThread thread;
+ thread.Start(&read, &write);
+
+ for (int i = 0; i < kNumIterations; ++i) {
+ write.Set();
+ read.Wait(Event::kForever);
+ }
+ write.Set();
+
+ thread.Stop();
+}
+
} // namespace rtc
