| // Copyright 2021 The Chromium OS 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 ML_TIME_METRICS_H_ |
| #define ML_TIME_METRICS_H_ |
| |
| #include <string> |
| |
| #include <base/time/time.h> |
| |
| namespace ml { |
| |
| // An RAII class to measure the wall time usage of a scope. |
| // The starting time is measured in constructor. And the ending time is measured |
| // and reported in destructor. |
| class WallTimeMetric { |
| public: |
| explicit WallTimeMetric(const std::string& name); |
| ~WallTimeMetric(); |
| |
| private: |
| const std::string metric_name_; |
| const base::Time start_time_; |
| }; |
| |
| // Records how long it takes to reap the worker process. |
| void RecordReapWorkerProcessWallTime(base::Time begin_time, |
| base::Time end_time); |
| |
| } // namespace ml |
| #endif // ML_TIME_METRICS_H_ |