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ec05d2c747
This replaces the simple boolean ThreadRegistrationData::mIsBeingProfiled and its directly-dependent functions. profiler_thread_is_being_profiled now takes an extra (currently optional) argument, to check if any of the given ThreadProfilingFeatures is currently live. This is used to control: - Periodic sampling of CPU utilization. - Periodic sampling of stacks. - Markers. This patch doesn't change the observed behavior yet (i.e., instead of IsBeingProfiled being true or false, all thread profiling features are either all or nothing), but will be used for finer-grained control in later patches. Differential Revision: https://phabricator.services.mozilla.com/D130008
132 lines
4.8 KiB
C++
132 lines
4.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/EventQueue.h"
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#include "GeckoProfiler.h"
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#include "InputTaskManager.h"
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#include "VsyncTaskManager.h"
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#include "nsIRunnable.h"
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#include "TaskController.h"
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using namespace mozilla;
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using namespace mozilla::detail;
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template <size_t ItemsPerPage>
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void EventQueueInternal<ItemsPerPage>::PutEvent(
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already_AddRefed<nsIRunnable>&& aEvent, EventQueuePriority aPriority,
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const MutexAutoLock& aProofOfLock, mozilla::TimeDuration* aDelay) {
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nsCOMPtr<nsIRunnable> event(aEvent);
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static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_IDLE) ==
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static_cast<uint32_t>(EventQueuePriority::Idle));
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static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_NORMAL) ==
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static_cast<uint32_t>(EventQueuePriority::Normal));
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static_assert(
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static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_MEDIUMHIGH) ==
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static_cast<uint32_t>(EventQueuePriority::MediumHigh));
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static_assert(
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static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_INPUT_HIGH) ==
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static_cast<uint32_t>(EventQueuePriority::InputHigh));
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static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_VSYNC) ==
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static_cast<uint32_t>(EventQueuePriority::Vsync));
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static_assert(
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static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_RENDER_BLOCKING) ==
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static_cast<uint32_t>(EventQueuePriority::RenderBlocking));
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static_assert(static_cast<uint32_t>(nsIRunnablePriority::PRIORITY_CONTROL) ==
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static_cast<uint32_t>(EventQueuePriority::Control));
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if (mForwardToTC) {
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TaskController* tc = TaskController::Get();
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TaskManager* manager = nullptr;
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if (aPriority == EventQueuePriority::InputHigh) {
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manager = InputTaskManager::Get();
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} else if (aPriority == EventQueuePriority::DeferredTimers ||
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aPriority == EventQueuePriority::Idle) {
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manager = TaskController::Get()->GetIdleTaskManager();
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} else if (aPriority == EventQueuePriority::Vsync) {
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manager = VsyncTaskManager::Get();
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}
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tc->DispatchRunnable(event.forget(), static_cast<uint32_t>(aPriority),
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manager);
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return;
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}
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if (profiler_thread_is_being_profiled(ThreadProfilingFeatures::Sampling)) {
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// check to see if the profiler has been enabled since the last PutEvent
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while (mDispatchTimes.Count() < mQueue.Count()) {
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mDispatchTimes.Push(TimeStamp());
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}
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mDispatchTimes.Push(aDelay ? TimeStamp::Now() - *aDelay : TimeStamp::Now());
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}
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mQueue.Push(std::move(event));
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}
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template <size_t ItemsPerPage>
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already_AddRefed<nsIRunnable> EventQueueInternal<ItemsPerPage>::GetEvent(
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const MutexAutoLock& aProofOfLock, mozilla::TimeDuration* aLastEventDelay) {
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if (mQueue.IsEmpty()) {
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if (aLastEventDelay) {
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*aLastEventDelay = TimeDuration();
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}
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return nullptr;
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}
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// We always want to clear the dispatch times, even if the profiler is turned
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// off, because we want to empty the (previously-collected) dispatch times, if
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// any, from when the profiler was turned on. We only want to do something
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// interesting with the dispatch times if the profiler is turned on, though.
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if (!mDispatchTimes.IsEmpty()) {
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TimeStamp dispatch_time = mDispatchTimes.Pop();
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if (profiler_is_active()) {
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if (!dispatch_time.IsNull()) {
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if (aLastEventDelay) {
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*aLastEventDelay = TimeStamp::Now() - dispatch_time;
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}
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}
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}
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} else if (profiler_is_active()) {
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if (aLastEventDelay) {
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// if we just turned on the profiler, we don't have dispatch
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// times for events already in the queue.
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*aLastEventDelay = TimeDuration();
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}
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}
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nsCOMPtr<nsIRunnable> result = mQueue.Pop();
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return result.forget();
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}
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template <size_t ItemsPerPage>
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bool EventQueueInternal<ItemsPerPage>::IsEmpty(
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const MutexAutoLock& aProofOfLock) {
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return mQueue.IsEmpty();
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}
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template <size_t ItemsPerPage>
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bool EventQueueInternal<ItemsPerPage>::HasReadyEvent(
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const MutexAutoLock& aProofOfLock) {
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return !IsEmpty(aProofOfLock);
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}
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template <size_t ItemsPerPage>
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size_t EventQueueInternal<ItemsPerPage>::Count(
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const MutexAutoLock& aProofOfLock) const {
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return mQueue.Count();
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}
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namespace mozilla {
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template class EventQueueSized<16>; // Used by ThreadEventQueue
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template class EventQueueSized<64>; // Used by ThrottledEventQueue
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namespace detail {
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template class EventQueueInternal<16>; // Used by ThreadEventQueue
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template class EventQueueInternal<64>; // Used by ThrottledEventQueue
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} // namespace detail
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} // namespace mozilla
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