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Side by Side Diff: base/threading/thread_perftest.cc

Issue 1100773004: base: Remove most uses of MessageLoopProxy (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Added some missing includes. Created 5 years, 7 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "base/base_switches.h" 5 #include "base/base_switches.h"
6 #include "base/bind.h" 6 #include "base/bind.h"
7 #include "base/command_line.h" 7 #include "base/command_line.h"
8 #include "base/location.h"
8 #include "base/memory/scoped_vector.h" 9 #include "base/memory/scoped_vector.h"
10 #include "base/single_thread_task_runner.h"
9 #include "base/strings/stringprintf.h" 11 #include "base/strings/stringprintf.h"
10 #include "base/synchronization/condition_variable.h" 12 #include "base/synchronization/condition_variable.h"
11 #include "base/synchronization/lock.h" 13 #include "base/synchronization/lock.h"
12 #include "base/synchronization/waitable_event.h" 14 #include "base/synchronization/waitable_event.h"
13 #include "base/threading/thread.h" 15 #include "base/threading/thread.h"
14 #include "base/time/time.h" 16 #include "base/time/time.h"
15 #include "build/build_config.h" 17 #include "build/build_config.h"
16 #include "testing/gtest/include/gtest/gtest.h" 18 #include "testing/gtest/include/gtest/gtest.h"
17 #include "testing/perf/perf_test.h" 19 #include "testing/perf/perf_test.h"
18 20
(...skipping 28 matching lines...) Expand all
47 virtual void Reset() {} 49 virtual void Reset() {}
48 50
49 void TimeOnThread(base::TimeTicks* ticks, base::WaitableEvent* done) { 51 void TimeOnThread(base::TimeTicks* ticks, base::WaitableEvent* done) {
50 *ticks = base::TimeTicks::ThreadNow(); 52 *ticks = base::TimeTicks::ThreadNow();
51 done->Signal(); 53 done->Signal();
52 } 54 }
53 55
54 base::TimeTicks ThreadNow(base::Thread* thread) { 56 base::TimeTicks ThreadNow(base::Thread* thread) {
55 base::WaitableEvent done(false, false); 57 base::WaitableEvent done(false, false);
56 base::TimeTicks ticks; 58 base::TimeTicks ticks;
57 thread->message_loop_proxy()->PostTask( 59 thread->task_runner()->PostTask(
58 FROM_HERE, 60 FROM_HERE, base::Bind(&ThreadPerfTest::TimeOnThread,
59 base::Bind(&ThreadPerfTest::TimeOnThread, 61 base::Unretained(this), &ticks, &done));
60 base::Unretained(this),
61 &ticks,
62 &done));
63 done.Wait(); 62 done.Wait();
64 return ticks; 63 return ticks;
65 } 64 }
66 65
67 void RunPingPongTest(const std::string& name, unsigned num_threads) { 66 void RunPingPongTest(const std::string& name, unsigned num_threads) {
68 // Create threads and collect starting cpu-time for each thread. 67 // Create threads and collect starting cpu-time for each thread.
69 std::vector<base::TimeTicks> thread_starts; 68 std::vector<base::TimeTicks> thread_starts;
70 while (threads_.size() < num_threads) { 69 while (threads_.size() < num_threads) {
71 threads_.push_back(new base::Thread("PingPonger")); 70 threads_.push_back(new base::Thread("PingPonger"));
72 threads_.back()->Start(); 71 threads_.back()->Start();
(...skipping 48 matching lines...) Expand 10 before | Expand all | Expand 10 after
121 class TaskPerfTest : public ThreadPerfTest { 120 class TaskPerfTest : public ThreadPerfTest {
122 base::Thread* NextThread(int count) { 121 base::Thread* NextThread(int count) {
123 return threads_[count % threads_.size()]; 122 return threads_[count % threads_.size()];
124 } 123 }
125 124
126 void PingPong(int hops) override { 125 void PingPong(int hops) override {
127 if (!hops) { 126 if (!hops) {
128 FinishMeasurement(); 127 FinishMeasurement();
129 return; 128 return;
130 } 129 }
131 NextThread(hops)->message_loop_proxy()->PostTask( 130 NextThread(hops)->task_runner()->PostTask(
132 FROM_HERE, 131 FROM_HERE, base::Bind(&ThreadPerfTest::PingPong, base::Unretained(this),
133 base::Bind( 132 hops - 1));
134 &ThreadPerfTest::PingPong, base::Unretained(this), hops - 1));
135 } 133 }
136 }; 134 };
137 135
138 // This tries to test the 'best-case' as well as the 'worst-case' task posting 136 // This tries to test the 'best-case' as well as the 'worst-case' task posting
139 // performance. The best-case keeps one thread alive such that it never yeilds, 137 // performance. The best-case keeps one thread alive such that it never yeilds,
140 // while the worse-case forces a context switch for every task. Four threads are 138 // while the worse-case forces a context switch for every task. Four threads are
141 // used to ensure the threads do yeild (with just two it might be possible for 139 // used to ensure the threads do yeild (with just two it might be possible for
142 // both threads to stay awake if they can signal each other fast enough). 140 // both threads to stay awake if they can signal each other fast enough).
143 TEST_F(TaskPerfTest, TaskPingPong) { 141 TEST_F(TaskPerfTest, TaskPingPong) {
144 RunPingPongTest("1_Task_Threads", 1); 142 RunPingPongTest("1_Task_Threads", 1);
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after
191 } while (my_hops > 0); 189 } while (my_hops > 0);
192 // Once we are done, all threads will signal as hops passes zero. 190 // Once we are done, all threads will signal as hops passes zero.
193 // We only signal completion once, on the thread that reaches zero. 191 // We only signal completion once, on the thread that reaches zero.
194 if (!my_hops) 192 if (!my_hops)
195 FinishMeasurement(); 193 FinishMeasurement();
196 } 194 }
197 195
198 void PingPong(int hops) override { 196 void PingPong(int hops) override {
199 remaining_hops_ = hops; 197 remaining_hops_ = hops;
200 for (size_t i = 0; i < threads_.size(); i++) { 198 for (size_t i = 0; i < threads_.size(); i++) {
201 threads_[i]->message_loop_proxy()->PostTask( 199 threads_[i]->task_runner()->PostTask(
202 FROM_HERE, 200 FROM_HERE, base::Bind(&EventPerfTest::WaitAndSignalOnThread,
203 base::Bind(&EventPerfTest::WaitAndSignalOnThread, 201 base::Unretained(this), i));
204 base::Unretained(this),
205 i));
206 } 202 }
207 203
208 // Kick off the Signal ping-ponging. 204 // Kick off the Signal ping-ponging.
209 events_.front()->Signal(); 205 events_.front()->Signal();
210 } 206 }
211 207
212 int remaining_hops_; 208 int remaining_hops_;
213 ScopedVector<WaitableEventType> events_; 209 ScopedVector<WaitableEventType> events_;
214 }; 210 };
215 211
(...skipping 87 matching lines...) Expand 10 before | Expand all | Expand 10 after
303 typedef EventPerfTest<PthreadEvent> PthreadEventPerfTest; 299 typedef EventPerfTest<PthreadEvent> PthreadEventPerfTest;
304 TEST_F(PthreadEventPerfTest, EventPingPong) { 300 TEST_F(PthreadEventPerfTest, EventPingPong) {
305 RunPingPongTest("4_PthreadCondVar_Threads", 4); 301 RunPingPongTest("4_PthreadCondVar_Threads", 4);
306 } 302 }
307 303
308 #endif 304 #endif
309 305
310 } // namespace 306 } // namespace
311 307
312 } // namespace base 308 } // namespace base
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