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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 <stddef.h> | 5 #include <stddef.h> |
6 #include <stdint.h> | 6 #include <stdint.h> |
7 | 7 |
8 #include <cstdlib> | 8 #include <cstdlib> |
9 #include <memory> | 9 #include <memory> |
10 #include <utility> | 10 #include <utility> |
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437 // asynchronous library loading has completed before walking the stack. If | 437 // asynchronous library loading has completed before walking the stack. If |
438 // false, the unloading may still be occurring during the stack walk. | 438 // false, the unloading may still be occurring during the stack walk. |
439 void TestLibraryUnload(bool wait_until_unloaded) { | 439 void TestLibraryUnload(bool wait_until_unloaded) { |
440 // Test delegate that supports intervening between the copying of the stack | 440 // Test delegate that supports intervening between the copying of the stack |
441 // and the walking of the stack. | 441 // and the walking of the stack. |
442 class StackCopiedSignaler : public NativeStackSamplerTestDelegate { | 442 class StackCopiedSignaler : public NativeStackSamplerTestDelegate { |
443 public: | 443 public: |
444 StackCopiedSignaler(WaitableEvent* stack_copied, | 444 StackCopiedSignaler(WaitableEvent* stack_copied, |
445 WaitableEvent* start_stack_walk, | 445 WaitableEvent* start_stack_walk, |
446 bool wait_to_walk_stack) | 446 bool wait_to_walk_stack) |
447 : stack_copied_(stack_copied), start_stack_walk_(start_stack_walk), | 447 : stack_copied_(stack_copied), |
448 wait_to_walk_stack_(wait_to_walk_stack) { | 448 start_stack_walk_(start_stack_walk), |
449 } | 449 wait_to_walk_stack_(wait_to_walk_stack) {} |
450 | 450 |
451 void OnPreStackWalk() override { | 451 void OnPreStackWalk() override { |
452 stack_copied_->Signal(); | 452 stack_copied_->Signal(); |
453 if (wait_to_walk_stack_) | 453 if (wait_to_walk_stack_) |
454 start_stack_walk_->Wait(); | 454 start_stack_walk_->Wait(); |
455 } | 455 } |
456 | 456 |
457 private: | 457 private: |
458 WaitableEvent* const stack_copied_; | 458 WaitableEvent* const stack_copied_; |
459 WaitableEvent* const start_stack_walk_; | 459 WaitableEvent* const start_stack_walk_; |
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713 reinterpret_cast<const void*>(&TargetThread::CallWithAlloca)) | 713 reinterpret_cast<const void*>(&TargetThread::CallWithAlloca)) |
714 << " was not found in stack:\n" | 714 << " was not found in stack:\n" |
715 << FormatSampleForDiagnosticOutput(sample, profile.modules); | 715 << FormatSampleForDiagnosticOutput(sample, profile.modules); |
716 | 716 |
717 // These frames should be adjacent on the stack. | 717 // These frames should be adjacent on the stack. |
718 EXPECT_EQ(1, alloca_frame - end_frame) | 718 EXPECT_EQ(1, alloca_frame - end_frame) |
719 << "Stack:\n" | 719 << "Stack:\n" |
720 << FormatSampleForDiagnosticOutput(sample, profile.modules); | 720 << FormatSampleForDiagnosticOutput(sample, profile.modules); |
721 } | 721 } |
722 | 722 |
723 // Checks that the fire-and-forget interface works. | |
724 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | |
725 #define MAYBE_StartAndRunAsync StartAndRunAsync | |
726 #else | |
727 #define MAYBE_StartAndRunAsync DISABLED_StartAndRunAsync | |
728 #endif | |
729 TEST(StackSamplingProfilerTest, MAYBE_StartAndRunAsync) { | |
730 // StartAndRunAsync requires the caller to have a message loop. | |
731 MessageLoop message_loop; | |
732 | |
733 SamplingParams params; | |
734 params.samples_per_burst = 1; | |
735 | |
736 CallStackProfiles profiles; | |
737 WithTargetThread([¶ms, &profiles](PlatformThreadId target_thread_id) { | |
738 WaitableEvent sampling_thread_completed( | |
739 WaitableEvent::ResetPolicy::AUTOMATIC, | |
740 WaitableEvent::InitialState::NOT_SIGNALED); | |
741 const StackSamplingProfiler::CompletedCallback callback = | |
742 Bind(&SaveProfilesAndSignalEvent, Unretained(&profiles), | |
743 Unretained(&sampling_thread_completed)); | |
744 StackSamplingProfiler::StartAndRunAsync(target_thread_id, params, callback); | |
745 RunLoop().RunUntilIdle(); | |
746 sampling_thread_completed.Wait(); | |
747 }); | |
748 | |
749 ASSERT_EQ(1u, profiles.size()); | |
750 } | |
751 | |
752 // Checks that the expected number of profiles and samples are present in the | 723 // Checks that the expected number of profiles and samples are present in the |
753 // call stack profiles produced. | 724 // call stack profiles produced. |
754 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | 725 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) |
755 #define MAYBE_MultipleProfilesAndSamples MultipleProfilesAndSamples | 726 #define MAYBE_MultipleProfilesAndSamples MultipleProfilesAndSamples |
756 #else | 727 #else |
757 #define MAYBE_MultipleProfilesAndSamples DISABLED_MultipleProfilesAndSamples | 728 #define MAYBE_MultipleProfilesAndSamples DISABLED_MultipleProfilesAndSamples |
758 #endif | 729 #endif |
759 TEST(StackSamplingProfilerTest, MAYBE_MultipleProfilesAndSamples) { | 730 TEST(StackSamplingProfilerTest, MAYBE_MultipleProfilesAndSamples) { |
760 SamplingParams params; | 731 SamplingParams params; |
761 params.burst_interval = params.sampling_interval = | 732 params.burst_interval = params.sampling_interval = |
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853 }); | 824 }); |
854 } | 825 } |
855 | 826 |
856 // Checks that the same profiler may be run multiple times. | 827 // Checks that the same profiler may be run multiple times. |
857 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | 828 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) |
858 #define MAYBE_CanRunMultipleTimes CanRunMultipleTimes | 829 #define MAYBE_CanRunMultipleTimes CanRunMultipleTimes |
859 #else | 830 #else |
860 #define MAYBE_CanRunMultipleTimes DISABLED_CanRunMultipleTimes | 831 #define MAYBE_CanRunMultipleTimes DISABLED_CanRunMultipleTimes |
861 #endif | 832 #endif |
862 TEST(StackSamplingProfilerTest, MAYBE_CanRunMultipleTimes) { | 833 TEST(StackSamplingProfilerTest, MAYBE_CanRunMultipleTimes) { |
834 StackSamplingProfiler::TestAPI::SetSamplingThreadIdleShutdownTime(0); | |
835 | |
863 SamplingParams params; | 836 SamplingParams params; |
864 params.sampling_interval = TimeDelta::FromMilliseconds(0); | 837 params.sampling_interval = TimeDelta::FromMilliseconds(0); |
865 params.samples_per_burst = 1; | 838 params.samples_per_burst = 1; |
866 | 839 |
867 std::vector<CallStackProfile> profiles; | 840 std::vector<CallStackProfile> profiles; |
868 CaptureProfiles(params, AVeryLongTimeDelta(), &profiles); | 841 CaptureProfiles(params, AVeryLongTimeDelta(), &profiles); |
869 ASSERT_EQ(1u, profiles.size()); | 842 ASSERT_EQ(1u, profiles.size()); |
870 | 843 |
871 profiles.clear(); | 844 profiles.clear(); |
872 CaptureProfiles(params, AVeryLongTimeDelta(), &profiles); | 845 CaptureProfiles(params, AVeryLongTimeDelta(), &profiles); |
873 ASSERT_EQ(1u, profiles.size()); | 846 ASSERT_EQ(1u, profiles.size()); |
847 | |
848 // Capture thread should still be running at this point. | |
Mike Wittman
2017/02/22 03:06:48
The shutdown and restart behavior should be broken
bcwhite
2017/02/22 14:32:51
Done.
| |
849 ASSERT_TRUE(StackSamplingProfiler::TestAPI::IsSamplingThreadRunning()); | |
850 | |
851 // Initiate an "idle" shutdown. The task will be run immediately but on | |
852 // another thread so wait for it to complete. | |
853 StackSamplingProfiler::TestAPI::InitiateSamplingThreadIdleShutdown(); | |
854 while (StackSamplingProfiler::TestAPI::IsSamplingThreadRunning()) | |
855 PlatformThread::YieldCurrentThread(); | |
856 | |
857 // Ensure another capture will start the sampling thread and run. | |
858 profiles.clear(); | |
859 CaptureProfiles(params, AVeryLongTimeDelta(), &profiles); | |
860 ASSERT_EQ(1u, profiles.size()); | |
861 EXPECT_TRUE(StackSamplingProfiler::TestAPI::IsSamplingThreadRunning()); | |
874 } | 862 } |
875 | 863 |
876 // Checks that requests to start profiling while another profile is taking place | 864 // Checks that multiple sampling requests execute in parallel. |
877 // are ignored. | |
878 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | 865 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) |
879 #define MAYBE_ConcurrentProfiling ConcurrentProfiling | 866 #define MAYBE_ConcurrentProfiling ConcurrentProfiling |
Mike Wittman
2017/02/22 03:06:48
I think we should test different interleavings of
bcwhite
2017/02/22 14:32:51
Done.
| |
880 #else | 867 #else |
881 #define MAYBE_ConcurrentProfiling DISABLED_ConcurrentProfiling | 868 #define MAYBE_ConcurrentProfiling DISABLED_ConcurrentProfiling |
882 #endif | 869 #endif |
883 TEST(StackSamplingProfilerTest, MAYBE_ConcurrentProfiling) { | 870 TEST(StackSamplingProfilerTest, MAYBE_ConcurrentProfiling) { |
884 WithTargetThread([](PlatformThreadId target_thread_id) { | 871 WithTargetThread([](PlatformThreadId target_thread_id) { |
885 SamplingParams params[2]; | 872 SamplingParams params[2]; |
886 params[0].initial_delay = TimeDelta::FromMilliseconds(10); | 873 params[0].initial_delay = TimeDelta::FromMilliseconds(10); |
887 params[0].sampling_interval = TimeDelta::FromMilliseconds(0); | 874 params[0].sampling_interval = TimeDelta::FromMilliseconds(1); |
888 params[0].samples_per_burst = 1; | 875 params[0].samples_per_burst = 10; |
889 | 876 |
890 params[1].sampling_interval = TimeDelta::FromMilliseconds(0); | 877 params[0].initial_delay = TimeDelta::FromMilliseconds(10); |
891 params[1].samples_per_burst = 1; | 878 params[1].sampling_interval = TimeDelta::FromMilliseconds(1); |
879 params[1].samples_per_burst = 10; | |
892 | 880 |
893 CallStackProfiles profiles[2]; | 881 CallStackProfiles profiles[2]; |
894 std::vector<std::unique_ptr<WaitableEvent>> sampling_completed(2); | 882 std::vector<std::unique_ptr<WaitableEvent>> sampling_completed(2); |
895 std::vector<std::unique_ptr<StackSamplingProfiler>> profiler(2); | 883 std::vector<std::unique_ptr<StackSamplingProfiler>> profiler(2); |
896 for (int i = 0; i < 2; ++i) { | 884 for (int i = 0; i < 2; ++i) { |
897 sampling_completed[i] = | 885 sampling_completed[i] = |
898 MakeUnique<WaitableEvent>(WaitableEvent::ResetPolicy::AUTOMATIC, | 886 MakeUnique<WaitableEvent>(WaitableEvent::ResetPolicy::AUTOMATIC, |
899 WaitableEvent::InitialState::NOT_SIGNALED); | 887 WaitableEvent::InitialState::NOT_SIGNALED); |
900 const StackSamplingProfiler::CompletedCallback callback = | 888 const StackSamplingProfiler::CompletedCallback callback = |
901 Bind(&SaveProfilesAndSignalEvent, Unretained(&profiles[i]), | 889 Bind(&SaveProfilesAndSignalEvent, Unretained(&profiles[i]), |
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912 std::transform( | 900 std::transform( |
913 sampling_completed.begin(), sampling_completed.end(), | 901 sampling_completed.begin(), sampling_completed.end(), |
914 sampling_completed_rawptrs.begin(), | 902 sampling_completed_rawptrs.begin(), |
915 [](const std::unique_ptr<WaitableEvent>& elem) { return elem.get(); }); | 903 [](const std::unique_ptr<WaitableEvent>& elem) { return elem.get(); }); |
916 // Wait for one profiler to finish. | 904 // Wait for one profiler to finish. |
917 size_t completed_profiler = | 905 size_t completed_profiler = |
918 WaitableEvent::WaitMany(sampling_completed_rawptrs.data(), 2); | 906 WaitableEvent::WaitMany(sampling_completed_rawptrs.data(), 2); |
919 EXPECT_EQ(1u, profiles[completed_profiler].size()); | 907 EXPECT_EQ(1u, profiles[completed_profiler].size()); |
920 | 908 |
921 size_t other_profiler = 1 - completed_profiler; | 909 size_t other_profiler = 1 - completed_profiler; |
922 // Give the other profiler a chance to run and observe that it hasn't. | 910 // Give the other profiler a chance to finish and verify it does so. |
923 EXPECT_FALSE(sampling_completed[other_profiler]->TimedWait( | 911 EXPECT_TRUE(sampling_completed[other_profiler]->TimedWait( |
924 TimeDelta::FromMilliseconds(25))); | 912 TimeDelta::FromMilliseconds(250))); |
925 | |
926 // Start the other profiler again and it should run. | |
927 profiler[other_profiler]->Start(); | |
928 sampling_completed[other_profiler]->Wait(); | |
929 EXPECT_EQ(1u, profiles[other_profiler].size()); | |
930 }); | 913 }); |
931 } | 914 } |
932 | 915 |
933 // Checks that a stack that runs through another library produces a stack with | 916 // Checks that a stack that runs through another library produces a stack with |
934 // the expected functions. | 917 // the expected functions. |
935 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | 918 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) |
936 #define MAYBE_OtherLibrary OtherLibrary | 919 #define MAYBE_OtherLibrary OtherLibrary |
937 #else | 920 #else |
938 #define MAYBE_OtherLibrary DISABLED_OtherLibrary | 921 #define MAYBE_OtherLibrary DISABLED_OtherLibrary |
939 #endif | 922 #endif |
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1017 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) | 1000 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED) |
1018 #define MAYBE_UnloadedLibrary UnloadedLibrary | 1001 #define MAYBE_UnloadedLibrary UnloadedLibrary |
1019 #else | 1002 #else |
1020 #define MAYBE_UnloadedLibrary DISABLED_UnloadedLibrary | 1003 #define MAYBE_UnloadedLibrary DISABLED_UnloadedLibrary |
1021 #endif | 1004 #endif |
1022 TEST(StackSamplingProfilerTest, MAYBE_UnloadedLibrary) { | 1005 TEST(StackSamplingProfilerTest, MAYBE_UnloadedLibrary) { |
1023 TestLibraryUnload(true); | 1006 TestLibraryUnload(true); |
1024 } | 1007 } |
1025 | 1008 |
1026 } // namespace base | 1009 } // namespace base |
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