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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 "platform/scheduler/renderer/idle_time_estimator.h" | 5 #include "platform/scheduler/renderer/idle_time_estimator.h" |
6 | 6 |
7 #include "base/time/default_tick_clock.h" | 7 #include "base/time/default_tick_clock.h" |
8 | 8 |
9 namespace blink { | 9 namespace blink { |
10 namespace scheduler { | 10 namespace scheduler { |
11 | 11 |
12 IdleTimeEstimator::IdleTimeEstimator( | 12 IdleTimeEstimator::IdleTimeEstimator( |
13 const scoped_refptr<TaskQueue>& compositor_task_runner, | 13 const scoped_refptr<TaskQueue>& compositor_task_runner, |
14 base::TickClock* time_source, | 14 base::TickClock* time_source, |
15 int sample_count, | 15 int sample_count, |
16 double estimation_percentile) | 16 double estimation_percentile) |
17 : compositor_task_runner_(compositor_task_runner), | 17 : compositor_task_queue_(compositor_task_runner), |
18 per_frame_compositor_task_runtime_(sample_count), | 18 per_frame_compositor_task_runtime_(sample_count), |
19 time_source_(time_source), | 19 time_source_(time_source), |
20 estimation_percentile_(estimation_percentile), | 20 estimation_percentile_(estimation_percentile), |
21 nesting_level_(0), | 21 nesting_level_(0), |
22 did_commit_(false) { | 22 did_commit_(false) { |
23 compositor_task_runner_->AddTaskObserver(this); | 23 compositor_task_queue_->AddTaskObserver(this); |
24 } | 24 } |
25 | 25 |
26 IdleTimeEstimator::~IdleTimeEstimator() { | 26 IdleTimeEstimator::~IdleTimeEstimator() { |
27 compositor_task_runner_->RemoveTaskObserver(this); | 27 compositor_task_queue_->RemoveTaskObserver(this); |
28 } | 28 } |
29 | 29 |
30 base::TimeDelta IdleTimeEstimator::GetExpectedIdleDuration( | 30 base::TimeDelta IdleTimeEstimator::GetExpectedIdleDuration( |
31 base::TimeDelta compositor_frame_interval) const { | 31 base::TimeDelta compositor_frame_interval) const { |
32 base::TimeDelta expected_compositor_task_runtime_ = | 32 base::TimeDelta expected_compositor_task_runtime_ = |
33 per_frame_compositor_task_runtime_.Percentile(estimation_percentile_); | 33 per_frame_compositor_task_runtime_.Percentile(estimation_percentile_); |
34 return std::max(base::TimeDelta(), compositor_frame_interval - | 34 return std::max(base::TimeDelta(), compositor_frame_interval - |
35 expected_compositor_task_runtime_); | 35 expected_compositor_task_runtime_); |
36 } | 36 } |
37 | 37 |
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67 if (did_commit_) { | 67 if (did_commit_) { |
68 per_frame_compositor_task_runtime_.InsertSample( | 68 per_frame_compositor_task_runtime_.InsertSample( |
69 cumulative_compositor_runtime_); | 69 cumulative_compositor_runtime_); |
70 cumulative_compositor_runtime_ = base::TimeDelta(); | 70 cumulative_compositor_runtime_ = base::TimeDelta(); |
71 did_commit_ = false; | 71 did_commit_ = false; |
72 } | 72 } |
73 } | 73 } |
74 | 74 |
75 } // namespace scheduler | 75 } // namespace scheduler |
76 } // namespace blink | 76 } // namespace blink |
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