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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 "chromecast/browser/cast_memory_pressure_monitor.h" | 5 #include "chromecast/browser/cast_memory_pressure_monitor.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/location.h" | 8 #include "base/location.h" |
| 9 #include "base/process/process_metrics.h" | 9 #include "base/process/process_metrics.h" |
| 10 #include "base/thread_task_runner_handle.h" | 10 #include "base/threading/thread_task_runner_handle.h" |
| 11 #include "chromecast/base/metrics/cast_metrics_helper.h" | 11 #include "chromecast/base/metrics/cast_metrics_helper.h" |
| 12 | 12 |
| 13 namespace chromecast { | 13 namespace chromecast { |
| 14 namespace { | 14 namespace { |
| 15 | 15 |
| 16 // Memory thresholds (as fraction of total memory) for memory pressure levels. | 16 // Memory thresholds (as fraction of total memory) for memory pressure levels. |
| 17 // See more detailed description of pressure heuristic in PollPressureLevel. | 17 // See more detailed description of pressure heuristic in PollPressureLevel. |
| 18 // TODO(halliwell): tune thresholds based on data. | 18 // TODO(halliwell): tune thresholds based on data. |
| 19 constexpr float kCriticalMemoryThreshold = 0.2f; | 19 constexpr float kCriticalMemoryThreshold = 0.2f; |
| 20 constexpr float kModerateMemoryThreshold = 0.3f; | 20 constexpr float kModerateMemoryThreshold = 0.3f; |
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| 75 | 75 |
| 76 if (new_level == current_level_) | 76 if (new_level == current_level_) |
| 77 return; | 77 return; |
| 78 | 78 |
| 79 current_level_ = new_level; | 79 current_level_ = new_level; |
| 80 metrics::CastMetricsHelper::GetInstance()->RecordApplicationEventWithValue( | 80 metrics::CastMetricsHelper::GetInstance()->RecordApplicationEventWithValue( |
| 81 "Memory.Pressure.LevelChange", new_level); | 81 "Memory.Pressure.LevelChange", new_level); |
| 82 } | 82 } |
| 83 | 83 |
| 84 } // namespace chromecast | 84 } // namespace chromecast |
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