| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/performance_monitor/system_monitor_metrics_logger.h" |
| |
| #include "base/logging.h" |
| #include "base/metrics/histogram_macros.h" |
| #include "build/build_config.h" |
| |
| namespace performance_monitor { |
| |
| SystemMonitorMetricsLogger::SystemMonitorMetricsLogger() { |
| // These metrics are only available on Windows for now. |
| #if defined(OS_WIN) |
| if (auto* system_monitor = SystemMonitor::Get()) { |
| system_monitor->AddOrUpdateObserver( |
| this, { |
| .free_phys_memory_mb_frequency = |
| SystemMonitor::SamplingFrequency::kDefaultFrequency, |
| .disk_idle_time_percent_frequency = |
| SystemMonitor::SamplingFrequency::kDefaultFrequency, |
| }); |
| } |
| #endif |
| } |
| |
| void SystemMonitorMetricsLogger::OnFreePhysicalMemoryMbSample( |
| int free_phys_memory_mb) { |
| UMA_HISTOGRAM_COUNTS_1M("PerformanceMonitor.SystemMonitor.FreePhysMemory", |
| free_phys_memory_mb); |
| } |
| |
| void SystemMonitorMetricsLogger::OnDiskIdleTimePercent( |
| float disk_idle_time_percent) { |
| UMA_HISTOGRAM_COUNTS_100("PerformanceMonitor.SystemMonitor.DiskIdleTime", |
| disk_idle_time_percent * 100); |
| } |
| |
| } // namespace performance_monitor |
