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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 "components/scheduler/renderer/renderer_scheduler_impl.h" | 5 #include "platform/scheduler/renderer/renderer_scheduler_impl.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/debug/stack_trace.h" | 8 #include "base/debug/stack_trace.h" |
9 #include "base/logging.h" | 9 #include "base/logging.h" |
10 #include "base/memory/ptr_util.h" | 10 #include "base/memory/ptr_util.h" |
11 #include "base/metrics/histogram_macros.h" | 11 #include "base/metrics/histogram_macros.h" |
12 #include "base/trace_event/trace_event.h" | 12 #include "base/trace_event/trace_event.h" |
13 #include "base/trace_event/trace_event_argument.h" | 13 #include "base/trace_event/trace_event_argument.h" |
14 #include "cc/output/begin_frame_args.h" | 14 #include "cc/output/begin_frame_args.h" |
15 #include "components/scheduler/base/task_queue_impl.h" | 15 #include "platform/scheduler/base/task_queue_impl.h" |
16 #include "components/scheduler/base/task_queue_selector.h" | 16 #include "platform/scheduler/base/task_queue_selector.h" |
17 #include "components/scheduler/base/virtual_time_domain.h" | 17 #include "platform/scheduler/base/virtual_time_domain.h" |
18 #include "components/scheduler/child/scheduler_tqm_delegate.h" | 18 #include "platform/scheduler/child/scheduler_tqm_delegate.h" |
19 #include "components/scheduler/renderer/auto_advancing_virtual_time_domain.h" | 19 #include "platform/scheduler/renderer/auto_advancing_virtual_time_domain.h" |
20 #include "components/scheduler/renderer/web_view_scheduler_impl.h" | 20 #include "platform/scheduler/renderer/web_view_scheduler_impl.h" |
21 #include "components/scheduler/renderer/webthread_impl_for_renderer_scheduler.h" | 21 #include "platform/scheduler/renderer/webthread_impl_for_renderer_scheduler.h" |
22 | 22 |
| 23 namespace blink { |
23 namespace scheduler { | 24 namespace scheduler { |
24 namespace { | 25 namespace { |
25 // The run time of loading tasks is strongly bimodal. The vast majority are | 26 // The run time of loading tasks is strongly bimodal. The vast majority are |
26 // very cheap, but there are usually a handful of very expensive tasks (e.g ~1 | 27 // very cheap, but there are usually a handful of very expensive tasks (e.g ~1 |
27 // second on a mobile device) so we take a very pessimistic view when estimating | 28 // second on a mobile device) so we take a very pessimistic view when estimating |
28 // the cost of loading tasks. | 29 // the cost of loading tasks. |
29 const int kLoadingTaskEstimationSampleCount = 1000; | 30 const int kLoadingTaskEstimationSampleCount = 1000; |
30 const double kLoadingTaskEstimationPercentile = 99; | 31 const double kLoadingTaskEstimationPercentile = 99; |
31 const int kTimerTaskEstimationSampleCount = 1000; | 32 const int kTimerTaskEstimationSampleCount = 1000; |
32 const double kTimerTaskEstimationPercentile = 99; | 33 const double kTimerTaskEstimationPercentile = 99; |
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657 | 658 |
658 base::TimeTicks RendererSchedulerImpl::CurrentIdleTaskDeadlineForTesting() | 659 base::TimeTicks RendererSchedulerImpl::CurrentIdleTaskDeadlineForTesting() |
659 const { | 660 const { |
660 return idle_helper_.CurrentIdleTaskDeadline(); | 661 return idle_helper_.CurrentIdleTaskDeadline(); |
661 } | 662 } |
662 | 663 |
663 void RendererSchedulerImpl::RunIdleTasksForTesting( | 664 void RendererSchedulerImpl::RunIdleTasksForTesting( |
664 const base::Closure& callback) { | 665 const base::Closure& callback) { |
665 MainThreadOnly().in_idle_period_for_testing = true; | 666 MainThreadOnly().in_idle_period_for_testing = true; |
666 IdleTaskRunner()->PostIdleTask( | 667 IdleTaskRunner()->PostIdleTask( |
667 FROM_HERE, | 668 FROM_HERE, base::Bind(&RendererSchedulerImpl::EndIdlePeriodForTesting, |
668 base::Bind(&RendererSchedulerImpl::EndIdlePeriodForTesting, | 669 weak_factory_.GetWeakPtr(), callback)); |
669 weak_factory_.GetWeakPtr(), callback)); | |
670 idle_helper_.EnableLongIdlePeriod(); | 670 idle_helper_.EnableLongIdlePeriod(); |
671 } | 671 } |
672 | 672 |
673 void RendererSchedulerImpl::MaybeUpdatePolicy() { | 673 void RendererSchedulerImpl::MaybeUpdatePolicy() { |
674 helper_.CheckOnValidThread(); | 674 helper_.CheckOnValidThread(); |
675 if (policy_may_need_update_.IsSet()) { | 675 if (policy_may_need_update_.IsSet()) { |
676 UpdatePolicy(); | 676 UpdatePolicy(); |
677 } | 677 } |
678 } | 678 } |
679 | 679 |
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1097 IdleTimeEstimator* RendererSchedulerImpl::GetIdleTimeEstimatorForTesting() { | 1097 IdleTimeEstimator* RendererSchedulerImpl::GetIdleTimeEstimatorForTesting() { |
1098 return &MainThreadOnly().idle_time_estimator; | 1098 return &MainThreadOnly().idle_time_estimator; |
1099 } | 1099 } |
1100 | 1100 |
1101 void RendererSchedulerImpl::SuspendTimerQueue() { | 1101 void RendererSchedulerImpl::SuspendTimerQueue() { |
1102 MainThreadOnly().timer_queue_suspend_count++; | 1102 MainThreadOnly().timer_queue_suspend_count++; |
1103 ForceUpdatePolicy(); | 1103 ForceUpdatePolicy(); |
1104 #ifndef NDEBUG | 1104 #ifndef NDEBUG |
1105 DCHECK(!default_timer_task_runner_->IsQueueEnabled()); | 1105 DCHECK(!default_timer_task_runner_->IsQueueEnabled()); |
1106 for (const auto& runner : timer_task_runners_) { | 1106 for (const auto& runner : timer_task_runners_) { |
1107 DCHECK(!runner->IsQueueEnabled()); | 1107 DCHECK(!runner->IsQueueEnabled()); |
1108 } | 1108 } |
1109 #endif | 1109 #endif |
1110 } | 1110 } |
1111 | 1111 |
1112 void RendererSchedulerImpl::ResumeTimerQueue() { | 1112 void RendererSchedulerImpl::ResumeTimerQueue() { |
1113 MainThreadOnly().timer_queue_suspend_count--; | 1113 MainThreadOnly().timer_queue_suspend_count--; |
1114 DCHECK_GE(MainThreadOnly().timer_queue_suspend_count, 0); | 1114 DCHECK_GE(MainThreadOnly().timer_queue_suspend_count, 0); |
1115 ForceUpdatePolicy(); | 1115 ForceUpdatePolicy(); |
1116 } | 1116 } |
1117 | 1117 |
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1248 | 1248 |
1249 void RendererSchedulerImpl::OnIdlePeriodEnded() { | 1249 void RendererSchedulerImpl::OnIdlePeriodEnded() { |
1250 base::AutoLock lock(any_thread_lock_); | 1250 base::AutoLock lock(any_thread_lock_); |
1251 AnyThread().last_idle_period_end_time = | 1251 AnyThread().last_idle_period_end_time = |
1252 helper_.scheduler_tqm_delegate()->NowTicks(); | 1252 helper_.scheduler_tqm_delegate()->NowTicks(); |
1253 AnyThread().in_idle_period = false; | 1253 AnyThread().in_idle_period = false; |
1254 UpdatePolicyLocked(UpdateType::MAY_EARLY_OUT_IF_POLICY_UNCHANGED); | 1254 UpdatePolicyLocked(UpdateType::MAY_EARLY_OUT_IF_POLICY_UNCHANGED); |
1255 } | 1255 } |
1256 | 1256 |
1257 void RendererSchedulerImpl::AddPendingNavigation( | 1257 void RendererSchedulerImpl::AddPendingNavigation( |
1258 blink::WebScheduler::NavigatingFrameType type) { | 1258 WebScheduler::NavigatingFrameType type) { |
1259 helper_.CheckOnValidThread(); | 1259 helper_.CheckOnValidThread(); |
1260 if (type == blink::WebScheduler::NavigatingFrameType::kMainFrame) { | 1260 if (type == blink::WebScheduler::NavigatingFrameType::kMainFrame) { |
1261 MainThreadOnly().navigation_task_expected_count++; | 1261 MainThreadOnly().navigation_task_expected_count++; |
1262 UpdatePolicy(); | 1262 UpdatePolicy(); |
1263 } | 1263 } |
1264 } | 1264 } |
1265 | 1265 |
1266 void RendererSchedulerImpl::RemovePendingNavigation( | 1266 void RendererSchedulerImpl::RemovePendingNavigation( |
1267 blink::WebScheduler::NavigatingFrameType type) { | 1267 WebScheduler::NavigatingFrameType type) { |
1268 helper_.CheckOnValidThread(); | 1268 helper_.CheckOnValidThread(); |
1269 DCHECK_GT(MainThreadOnly().navigation_task_expected_count, 0); | 1269 DCHECK_GT(MainThreadOnly().navigation_task_expected_count, 0); |
1270 if (type == blink::WebScheduler::NavigatingFrameType::kMainFrame && | 1270 if (type == blink::WebScheduler::NavigatingFrameType::kMainFrame && |
1271 MainThreadOnly().navigation_task_expected_count > 0) { | 1271 MainThreadOnly().navigation_task_expected_count > 0) { |
1272 MainThreadOnly().navigation_task_expected_count--; | 1272 MainThreadOnly().navigation_task_expected_count--; |
1273 UpdatePolicy(); | 1273 UpdatePolicy(); |
1274 } | 1274 } |
1275 } | 1275 } |
1276 | 1276 |
1277 void RendererSchedulerImpl::OnNavigationStarted() { | 1277 void RendererSchedulerImpl::OnNavigationStarted() { |
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1363 MainThreadOnly().web_view_schedulers.insert(web_view_scheduler); | 1363 MainThreadOnly().web_view_schedulers.insert(web_view_scheduler); |
1364 } | 1364 } |
1365 | 1365 |
1366 void RendererSchedulerImpl::RemoveWebViewScheduler( | 1366 void RendererSchedulerImpl::RemoveWebViewScheduler( |
1367 WebViewSchedulerImpl* web_view_scheduler) { | 1367 WebViewSchedulerImpl* web_view_scheduler) { |
1368 DCHECK(MainThreadOnly().web_view_schedulers.find(web_view_scheduler) != | 1368 DCHECK(MainThreadOnly().web_view_schedulers.find(web_view_scheduler) != |
1369 MainThreadOnly().web_view_schedulers.end()); | 1369 MainThreadOnly().web_view_schedulers.end()); |
1370 MainThreadOnly().web_view_schedulers.erase(web_view_scheduler); | 1370 MainThreadOnly().web_view_schedulers.erase(web_view_scheduler); |
1371 } | 1371 } |
1372 | 1372 |
1373 void RendererSchedulerImpl::BroadcastConsoleWarning( | 1373 void RendererSchedulerImpl::BroadcastIntervention(const std::string& message) { |
1374 const std::string& message) { | |
1375 helper_.CheckOnValidThread(); | 1374 helper_.CheckOnValidThread(); |
1376 for (auto* web_view_scheduler : MainThreadOnly().web_view_schedulers) | 1375 for (auto* web_view_scheduler : MainThreadOnly().web_view_schedulers) |
1377 web_view_scheduler->AddConsoleWarning(message); | 1376 web_view_scheduler->ReportIntervention(message); |
1378 } | 1377 } |
1379 | 1378 |
1380 void RendererSchedulerImpl::OnTriedToExecuteBlockedTask( | 1379 void RendererSchedulerImpl::OnTriedToExecuteBlockedTask( |
1381 const TaskQueue& queue, | 1380 const TaskQueue& queue, |
1382 const base::PendingTask& task) { | 1381 const base::PendingTask& task) { |
1383 if (!MainThreadOnly().expensive_task_blocking_allowed || | 1382 if (!MainThreadOnly().expensive_task_blocking_allowed || |
1384 MainThreadOnly().current_use_case == UseCase::TOUCHSTART || | 1383 MainThreadOnly().current_use_case == UseCase::TOUCHSTART || |
1385 MainThreadOnly().longest_jank_free_task_duration < | 1384 MainThreadOnly().longest_jank_free_task_duration < |
1386 base::TimeDelta::FromMilliseconds(kRailsResponseTimeMillis) || | 1385 base::TimeDelta::FromMilliseconds(kRailsResponseTimeMillis) || |
1387 MainThreadOnly().timer_queue_suspend_count || | 1386 MainThreadOnly().timer_queue_suspend_count || |
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1401 } | 1400 } |
1402 | 1401 |
1403 if (!MainThreadOnly().have_reported_blocking_intervention_since_navigation) { | 1402 if (!MainThreadOnly().have_reported_blocking_intervention_since_navigation) { |
1404 { | 1403 { |
1405 base::AutoLock lock(any_thread_lock_); | 1404 base::AutoLock lock(any_thread_lock_); |
1406 if (!AnyThread().have_seen_touchstart) | 1405 if (!AnyThread().have_seen_touchstart) |
1407 return; | 1406 return; |
1408 } | 1407 } |
1409 MainThreadOnly().have_reported_blocking_intervention_since_navigation = | 1408 MainThreadOnly().have_reported_blocking_intervention_since_navigation = |
1410 true; | 1409 true; |
1411 BroadcastConsoleWarning( | 1410 BroadcastIntervention( |
1412 "Blink deferred a task in order to make scrolling smoother. " | 1411 "Blink deferred a task in order to make scrolling smoother. " |
1413 "Your timer and network tasks should take less than 50ms to run " | 1412 "Your timer and network tasks should take less than 50ms to run " |
1414 "to avoid this. Please see " | 1413 "to avoid this. Please see " |
1415 "https://developers.google.com/web/tools/chrome-devtools/profile/evaluat
e-performance/rail" | 1414 "https://developers.google.com/web/tools/chrome-devtools/profile/evaluat
e-performance/rail" |
1416 " and https://crbug.com/574343#c40 for more information."); | 1415 " and https://crbug.com/574343#c40 for more information."); |
1417 } | 1416 } |
1418 } | 1417 } |
1419 | 1418 |
1420 void RendererSchedulerImpl::ReportTaskTime(base::TimeTicks start_time, | 1419 void RendererSchedulerImpl::ReportTaskTime(base::TimeTicks start_time, |
1421 base::TimeTicks end_time) { | 1420 base::TimeTicks end_time) { |
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1497 return "idle"; | 1496 return "idle"; |
1498 case v8::PERFORMANCE_LOAD: | 1497 case v8::PERFORMANCE_LOAD: |
1499 return "load"; | 1498 return "load"; |
1500 default: | 1499 default: |
1501 NOTREACHED(); | 1500 NOTREACHED(); |
1502 return nullptr; | 1501 return nullptr; |
1503 } | 1502 } |
1504 } | 1503 } |
1505 | 1504 |
1506 } // namespace scheduler | 1505 } // namespace scheduler |
| 1506 } // namespace blink |
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