| // Copyright 2020 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. |
| |
| #ifndef CONTENT_COMMON_ANDROID_CPU_TIME_METRICS_H_ |
| #define CONTENT_COMMON_ANDROID_CPU_TIME_METRICS_H_ |
| |
| #include "content/common/content_export.h" |
| |
| namespace content { |
| |
| // Sets up periodic collection/reporting of the process's CPU time. Should be |
| // called on the process's main thread. |
| // |
| // The current process's CPU time usage is recorded periodically and reported it |
| // into UMA histograms. The histogram data can later be used to approximate the |
| // power consumption / efficiency of the app. Currently only supports Android, |
| // where the sandbox allows isolated processes to read from /proc/self/stats. |
| CONTENT_EXPORT void SetupCpuTimeMetrics(); |
| |
| // Sample and report the CPU time UMA metrics immediately on the current thread. |
| // Beware: Should only be used for testing and never in combination with |
| // SetupCpuTimeMetrics(). |
| CONTENT_EXPORT void SampleCpuTimeMetricsForTesting(); |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_ANDROID_CPU_TIME_METRICS_H_ |
