Google Chrome 66.0.3359.139 (Official Build) (64-bit)
Revision a020eddf0d85fe84d4a6787b304f50aafb670969-refs/branch-heads/3359@{#767}
OS Mac OS 10.13.3 (17D102)
Today I noticed that the browser process is taking 100% CPU time. I captured a trace and sampled the process with Mac Activity Monitor. It seems to spend most of the time in syscalls invoked from base::ProcessMetrics::GetMemoryBytes
=====
2374 Thread_372173: TaskSchedulerBackgroundBlockingWorker
+ 2374 thread_start (in libsystem_pthread.dylib) + 13 [0x7fff796e5c5d]
+ 2374 _pthread_start (in libsystem_pthread.dylib) + 377 [0x7fff796e656d]
+ 2374 _pthread_body (in libsystem_pthread.dylib) + 340 [0x7fff796e66c1]
+ 2374 base::(anonymous namespace)::ThreadFunc(void*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x206cf47 [platform_thread_posix.cc:78]
+ 2371 base::internal::SchedulerWorker::Thread::ThreadMain() (in Google Chrome Framework) load address 0x10ccc6000 + 0x205ac99 [type_traits:4644]
+ ! 2370 base::internal::TaskTracker::RunAndPopNextTask(scoped_refptr<base::internal::Sequence>, base::internal::CanScheduleSequenceObserver*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060625 [task_tracker.cc:353]
+ ! : 2370 base::internal::TaskTrackerPosix::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2061d13 [task_tracker_posix.cc:25]
+ ! : 2358 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060cb3 [trace_event.h:1094]
+ ! : | 2358 base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1ff2858 [callback_forward.h:11]
+ ! : | 2354 base::(anonymous namespace)::PostTaskAndReplyRelay::RunTaskAndPostReply() (in Google Chrome Framework) load address 0x10ccc6000 + 0x206d109 [callback_forward.h:11]
+ ! : | + 2352 base::internal::Invoker<base::internal::BindState<void (*)(base::OnceCallback<task_manager::MemoryUsageStats ()>, task_manager::MemoryUsageStats*), base::OnceCallback<task_manager::MemoryUsageStats ()>, task_manager::MemoryUsageStats*>, void ()>::RunOnce(base::internal::BindStateBase*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1ea86ab [callback_forward.h:11]
+ ! : | + ! 2352 void base::internal::ReturnAsParamAdapter<task_manager::MemoryUsageStats>(base::OnceCallback<task_manager::MemoryUsageStats ()>, task_manager::MemoryUsageStats*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1ea85fb [callback_forward.h:11]
+ ! : | + ! 2352 base::internal::Invoker<base::internal::BindState<task_manager::MemoryUsageStats (task_manager::TaskGroupSampler::*)(), scoped_refptr<task_manager::TaskGroupSampler> >, task_manager::MemoryUsageStats ()>::Run(base::internal::BindStateBase*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1ea845a [bind_internal.h:589]
+ ! : | + ! 2352 task_manager::TaskGroupSampler::RefreshMemoryUsage() (in Google Chrome Framework) load address 0x10ccc6000 + 0x1ea82c3 [task_group_sampler.cc:132]
+ ! : | + ! 624 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038683 [process_metrics_mac.cc:490]
+ ! : | + ! : 606 mach_vm_region (in libsystem_kernel.dylib) + 142 [0x7fff79598187]
+ ! : | + ! : | 589 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + ! : | + 589 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | + ! : | 17 mach_msg (in libsystem_kernel.dylib) + 60,221,... [0x7fff795a0cdc,0x7fff795a0d7d,...]
+ ! : | + ! : 16 mach_vm_region (in libsystem_kernel.dylib) + 0,42,... [0x7fff795980f9,0x7fff79598123,...]
+ ! : | + ! : 2 mach_vm_region (in libsystem_kernel.dylib) + 428 [0x7fff795982a5]
+ ! : | + ! : 2 memcpy (in libsystem_kernel.dylib) + 274,308 [0x7fff7958fb25,0x7fff7958fb47]
+ ! : | + ! 579 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386fa [process_metrics_mac.cc:506]
+ ! : | + ! : 546 mach_vm_region (in libsystem_kernel.dylib) + 142 [0x7fff79598187]
+ ! : | + ! : | 531 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + ! : | + 531 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | + ! : | 15 mach_msg (in libsystem_kernel.dylib) + 60,0,... [0x7fff795a0cdc,0x7fff795a0ca0,...]
+ ! : | + ! : 21 mach_vm_region (in libsystem_kernel.dylib) + 0,142,... [0x7fff795980f9,0x7fff79598187,...]
+ ! : | + ! : 10 mach_vm_region (in libsystem_kernel.dylib) + 428 [0x7fff795982a5]
+ ! : | + ! : | 10 memcpy (in libsystem_kernel.dylib) + 0,9,... [0x7fff7958fa13,0x7fff7958fa1c,...]
+ ! : | + ! : 2 mach_vm_region (in libsystem_kernel.dylib) + 95 [0x7fff79598158]
+ ! : | + ! : 2 mig_get_reply_port (in libsystem_kernel.dylib) + 8 [0x7fff795a1abb]
+ ! : | + ! 564 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038693 [process_metrics_mac.cc:210]
+ ! : | + ! : 397 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 91 [0x7fff795953f7]
+ ! : | + ! : | 390 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + ! : | + 390 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | + ! : | 7 mach_msg (in libsystem_kernel.dylib) + 60,0,... [0x7fff795a0cdc,0x7fff795a0ca0,...]
+ ! : | + ! : 144 mach_port_deallocate (in libsystem_kernel.dylib) + 17 [0x7fff795a964e]
+ ! : | + ! : | 144 _kernelrpc_mach_port_deallocate_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a1732]
+ ! : | + ! : 16 mach_port_deallocate (in libsystem_kernel.dylib) + 17,0,... [0x7fff795a964e,0x7fff795a963d,...]
+ ! : | + ! : 4 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 0,19 [0x7fff7959539c,0x7fff795953af]
+ ! : | + ! : 3 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 44 [0x7fff795953c8]
+ ! : | + ! : 3 mig_get_reply_port (in libsystem_kernel.dylib) + 8 [0x7fff795a1abb]
+ ! : | + ! 522 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x203870a [process_metrics_mac.cc:218]
+ ! : | + ! : 368 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 91 [0x7fff795953f7]
+ ! : | + ! : | 361 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + ! : | + 361 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | + ! : | 7 mach_msg (in libsystem_kernel.dylib) + 60,0 [0x7fff795a0cdc,0x7fff795a0ca0]
+ ! : | + ! : 126 mach_port_deallocate (in libsystem_kernel.dylib) + 17 [0x7fff795a964e]
+ ! : | + ! : | 126 _kernelrpc_mach_port_deallocate_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a1732]
+ ! : | + ! : 17 mach_port_deallocate (in libsystem_kernel.dylib) + 17,0,... [0x7fff795a964e,0x7fff795a963d,...]
+ ! : | + ! : 8 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 1,19,... [0x7fff7959539d,0x7fff795953af,...]
+ ! : | + ! : 3 _kernelrpc_mach_port_deallocate (in libsystem_kernel.dylib) + 44 [0x7fff795953c8]
+ ! : | + ! : 3 mig_get_reply_port (in libsystem_kernel.dylib) + 8 [0x7fff795a1abb]
+ ! : | + ! 13 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x203870a [process_metrics_mac.cc:218]
+ ! : | + ! 8 parseSystemVersionPList (in Google Chrome Framework) + 0 []
+ ! : | + ! 7 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038486 [__hash_table:0]
+ ! : | + ! 7 parseSystemVersionPList (in Google Chrome Framework) + 0 []
+ ! : | + ! 5 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038683 [process_metrics_mac.cc:490]
+ ! : | + ! 5 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038693 [process_metrics_mac.cc:210]
+ ! : | + ! 3 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x203846a [new:230]
+ ! : | + ! : 2 operator new(unsigned long) (in libc++abi.dylib) + 0 [0x7fff774e2600]
+ ! : | + ! : 1 operator new(unsigned long) (in libc++abi.dylib) + 40 [0x7fff774e2628]
+ ! : | + ! : 1 malloc (in libsystem_malloc.dylib) + 0 [0x7fff796024f3]
+ ! : | + ! 2 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386fa [process_metrics_mac.cc:506]
+ ! : | + ! 2 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386fc [process_metrics_mac.cc:512]
+ ! : | + ! 2 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038824 [__hash_table:2259]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x203839f [process_metrics_mac.cc:78]
+ ! : | + ! : 1 sysctlbyname (in libsystem_c.dylib) + 85 [0x7fff794d8519]
+ ! : | + ! : 1 __sysctlbyname (in libsystem_kernel.dylib) + 10 [0x7fff795ab3ba]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038640 [process_metrics_mac.cc:205]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386a1 [process_metrics_mac.cc:210]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386a9 [process_metrics_mac.cc:210]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386b1 [process_metrics_mac.cc:216]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x20386bc [process_metrics_mac.cc:504]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x203889d [process_metrics_mac.cc:229]
+ ! : | + ! 1 base::ProcessMetrics::GetMemoryBytes(unsigned long*, unsigned long*, unsigned long*, unsigned long*) const (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038953 [new:238]
+ ! : | + ! 1 OSAtomicEnqueue (in libsystem_platform.dylib) + 29 [0x7fff796dc8d5]
+ ! : | + 2 base::internal::Invoker<base::internal::BindState<void (*)(base::OnceCallback<double ()>, double*), base::OnceCallback<double ()>, double*>, void ()>::RunOnce(base::internal::BindStateBase*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1105ceb [callback_forward.h:11]
+ ! : | + 2 void base::internal::ReturnAsParamAdapter<double>(base::OnceCallback<double ()>, double*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x1105c57 [callback.h:95]
+ ! : | + 1 base::ProcessMetrics::GetPlatformIndependentCPUUsage() (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038c5a [process_metrics_mac.cc:0]
+ ! : | + : 1 task_info (in libsystem_kernel.dylib) + 125 [0x7fff7959a35b]
+ ! : | + : 1 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + : 1 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | + 1 base::ProcessMetrics::GetPlatformIndependentCPUUsage() (in Google Chrome Framework) load address 0x10ccc6000 + 0x2038c81 [process_metrics_mac.cc:0]
+ ! : | + 1 task_info (in libsystem_kernel.dylib) + 125 [0x7fff7959a35b]
+ ! : | + 1 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + 1 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | 4 base::(anonymous namespace)::PostTaskAndReplyRelay::RunTaskAndPostReply() (in Google Chrome Framework) load address 0x10ccc6000 + 0x206d16e [callback_forward.h:11]
+ ! : | 4 <name omitted> (in Google Chrome Framework) load address 0x10ccc6000 + 0x2057a7f [task_runner.cc:44]
+ ! : | 4 base::internal::MessageLoopTaskRunner::PostDelayedTask(base::Location const&, base::OnceCallback<void ()>, base::TimeDelta) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2017e7f [message_loop_task_runner.cc:31]
+ ! : | 4 base::internal::IncomingTaskQueue::AddToIncomingQueue(base::Location const&, base::OnceCallback<void ()>, base::TimeDelta, base::Nestable) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2014a9f [incoming_task_queue.cc:85]
+ ! : | 4 base::internal::IncomingTaskQueue::PostPendingTask(base::PendingTask*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2014b27 [lock_impl.h:70]
+ ! : | 3 CFRunLoopWakeUp (in CoreFoundation) + 283 [0x7fff51b2286b]
+ ! : | ! 3 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | ! 3 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | 1 CFRunLoopWakeUp (in CoreFoundation) + 363 [0x7fff51b228bb]
+ ! : | 1 _pthread_mutex_unlock_slow (in libsystem_pthread.dylib) + 459 [0x7fff796e4990]
+ ! : | 1 _pthread_mutex_unlock_drop (in libsystem_pthread.dylib) + 36 [0x7fff796e6b45]
+ ! : | 1 __psynch_mutexdrop (in libsystem_kernel.dylib) + 0 [0x7fff795aacfc]
+ ! : 4 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060ceb [trace_event.h:0]
+ ! : | 4 <name omitted> (in Google Chrome Framework) load address 0x10ccc6000 + 0x2090251 [trace_log.cc:1398]
+ ! : | 2 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23c4 [time_mac.cc:120]
+ ! : | + 2 thread_info (in libsystem_kernel.dylib) + 125 [0x7fff7959e07d]
+ ! : | + 2 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + 2 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23a0 [time_mac.cc:102]
+ ! : | + 1 thread_self_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a179e]
+ ! : | 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23c4 [time_mac.cc:120]
+ ! : 3 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060d45 [trace_event.h:0]
+ ! : | 3 <name omitted> (in Google Chrome Framework) load address 0x10ccc6000 + 0x2090251 [trace_log.cc:1398]
+ ! : | 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23c4 [time_mac.cc:120]
+ ! : | + 1 thread_info (in libsystem_kernel.dylib) + 125 [0x7fff7959e07d]
+ ! : | + 1 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : | + 1 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! : | 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23ec [scoped_generic.h:0]
+ ! : | + 1 base::mac::internal::SendRightTraits::Free(unsigned int) (in Google Chrome Framework) load address 0x10ccc6000 + 0x200ec50 [scoped_mach_port.cc:15]
+ ! : | + 1 mach_port_deallocate (in libsystem_kernel.dylib) + 17 [0x7fff795a964e]
+ ! : | + 1 _kernelrpc_mach_port_deallocate_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a1732]
+ ! : | 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23c4 [time_mac.cc:120]
+ ! : 2 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060be0 [trace_event.h:968]
+ ! : | 1 base::trace_event::TraceLog::AddTraceEventWithThreadIdAndTimestamp(char, unsigned char const*, char const*, char const*, unsigned long long, unsigned long long, int, base::TimeTicks const&, int, char const* const*, unsigned char const*, unsigned long long const*, std::__1::unique_ptr<base::trace_event::ConvertableToTraceFormat, std::__1::default_delete<base::trace_event::ConvertableToTraceFormat> >*, unsigned int) (in Google Chrome Framework) load address 0x10ccc6000 + 0x208f0bd [trace_log.cc:1278]
+ ! : | + 1 base::trace_event::TraceEvent::Initialize(int, base::TimeTicks, base::ThreadTicks, char, unsigned char const*, char const*, char const*, unsigned long long, unsigned long long, int, char const* const*, unsigned char const*, unsigned long long const*, std::__1::unique_ptr<base::trace_event::ConvertableToTraceFormat, std::__1::default_delete<base::trace_event::ConvertableToTraceFormat> >*, unsigned int) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2089b5f [trace_event_impl.cc:145]
+ ! : | 1 base::trace_event::TraceLog::AddTraceEventWithThreadIdAndTimestamp(char, unsigned char const*, char const*, char const*, unsigned long long, unsigned long long, int, base::TimeTicks const&, int, char const* const*, unsigned char const*, unsigned long long const*, std::__1::unique_ptr<base::trace_event::ConvertableToTraceFormat, std::__1::default_delete<base::trace_event::ConvertableToTraceFormat> >*, unsigned int) (in Google Chrome Framework) load address 0x10ccc6000 + 0x208f15c [lock_impl.h:70]
+ ! : | 1 pthread_mutex_unlock (in libsystem_pthread.dylib) + 99 [0x7fff796e47ab]
+ ! : 1 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060b45 [trace_event.h:1047]
+ ! : | 1 <name omitted> (in Google Chrome Framework) load address 0x10ccc6000 + 0x206cb59 [platform_thread_posix.cc:140]
+ ! : | 1 pthread_self (in libsystem_pthread.dylib) + 0 [0x7fff796e5528]
+ ! : 1 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060e00 [memory:3126]
+ ! : | 1 operator new(unsigned long) (in libc++abi.dylib) + 0 [0x7fff774e2600]
+ ! : 1 base::internal::TaskTracker::RunOrSkipTask(base::internal::Task, base::internal::Sequence*, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060eac [trace_event.h:759]
+ ! : 1 base::trace_event::TraceLog::AddTraceEventWithThreadIdAndTimestamp(char, unsigned char const*, char const*, char const*, unsigned long long, unsigned long long, int, base::TimeTicks const&, int, char const* const*, unsigned char const*, unsigned long long const*, std::__1::unique_ptr<base::trace_event::ConvertableToTraceFormat, std::__1::default_delete<base::trace_event::ConvertableToTraceFormat> >*, unsigned int) (in Google Chrome Framework) load address 0x10ccc6000 + 0x208ed9e [trace_log.cc:88]
+ ! : 1 base::subtle::ThreadTicksNowIgnoringOverride() (in Google Chrome Framework) load address 0x10ccc6000 + 0x20a23c4 [time_mac.cc:120]
+ ! : 1 thread_info (in libsystem_kernel.dylib) + 125 [0x7fff7959e07d]
+ ! : 1 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! : 1 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ ! 1 base::internal::TaskTracker::RunAndPopNextTask(scoped_refptr<base::internal::Sequence>, base::internal::CanScheduleSequenceObserver*) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2060648 [task_tracker.cc:172]
+ 1 base::internal::SchedulerWorker::Thread::ThreadMain() (in Google Chrome Framework) load address 0x10ccc6000 + 0x205ad16 [scoped_refptr.h:207]
+ ! 1 base::internal::SchedulerWorkerPoolImpl::SchedulerWorkerDelegateImpl::ReEnqueueSequence(scoped_refptr<base::internal::Sequence>) (in Google Chrome Framework) load address 0x10ccc6000 + 0x205cd81 [memory:2615]
+ ! 1 base::internal::PriorityQueue::BeginTransaction() (in Google Chrome Framework) load address 0x10ccc6000 + 0x205902a [priority_queue.cc:105]
+ ! 1 operator new(unsigned long) (in libc++abi.dylib) + 40 [0x7fff774e2628]
+ ! 1 malloc (in libsystem_malloc.dylib) + 24 [0x7fff7960250b]
+ ! 1 malloc_zone_malloc (in libsystem_malloc.dylib) + 103 [0x7fff79603201]
+ ! 1 base::allocator::MallocZoneFunctionsToReplaceDefault()::$_1::__invoke(_malloc_zone_t*, unsigned long) (in Google Chrome Framework) load address 0x10ccc6000 + 0x209d53d [allocator_shim.cc:178]
+ ! 1 base::allocator::MallocZoneFunctionsToReplaceDefault()::$_1::__invoke(_malloc_zone_t*, unsigned long) (in Google Chrome Framework) load address 0x10ccc6000 + 0x209d53d [allocator_shim.cc:178]
+ ! 1 nano_malloc (in libsystem_malloc.dylib) + 35 [0x7fff79609bf1]
+ ! 1 _nano_malloc_check_clear (in libsystem_malloc.dylib) + 578 [0x7fff79609e54]
+ 1 base::internal::SchedulerWorker::Thread::ThreadMain() (in Google Chrome Framework) load address 0x10ccc6000 + 0x205ad48 [scheduler_worker.cc:99]
+ ! 1 base::WaitableEvent::PeekPort(unsigned int, bool) (in Google Chrome Framework) load address 0x10ccc6000 + 0x2053315 [waitable_event_mac.cc:321]
+ ! 1 mach_msg (in libsystem_kernel.dylib) + 60 [0x7fff795a0cdc]
+ ! 1 mach_msg_trap (in libsystem_kernel.dylib) + 10 [0x7fff795a17c2]
+ 1 base::internal::SchedulerWorker::Thread::ThreadMain() (in Google Chrome Framework) load address 0x10ccc6000 + 0x205adec [scoped_refptr.h:220]
+ 1 -[NSAutoreleasePool drain] (in Foundation) + 144 [0x7fff53bfa4f5]
+ 1 _CFAutoreleasePoolPop (in CoreFoundation) + 22 [0x7fff51af37f6]
+ 1 (anonymous namespace)::AutoreleasePoolPage::pop(void*) (in libobjc.A.dylib) + 271 [0x7fff78860e65]
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Sample of Google Chrome - task manager cpu hog.txt
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Sample of Google Chrome - task manager cpu hog.txt
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trace_task_manager_cpu_hog.json.gz
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trace_task_manager_cpu_hog.json.gz
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Deleted:
symbolized_task_manager_cpu_hog.txt
24.7 KB
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Comment 1 by alph@chromium.org
, May 1 2018