| // |
| // Copyright © 2017 Arm Ltd. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #pragma once |
| |
| #include "Instrument.hpp" |
| #include <chrono> |
| #include "DllExport.hpp" |
| |
| namespace armnn |
| { |
| |
| #if defined(CLOCK_MONOTONIC_RAW) && defined(__unix__) |
| #define USE_CLOCK_MONOTONIC_RAW 1 |
| #else |
| #define USE_CLOCK_MONOTONIC_RAW 0 |
| #endif |
| |
| #if USE_CLOCK_MONOTONIC_RAW |
| class MonotonicClockRaw |
| { |
| public: |
| using duration = std::chrono::nanoseconds; |
| using time_point = std::chrono::time_point<MonotonicClockRaw, duration>; |
| |
| static std::chrono::time_point<MonotonicClockRaw, std::chrono::nanoseconds> now() noexcept |
| { |
| timespec ts; |
| clock_gettime(CLOCK_MONOTONIC_RAW, &ts); |
| return time_point(std::chrono::nanoseconds(ts.tv_sec * 1000000000 + ts.tv_nsec)); |
| } |
| }; |
| #endif |
| |
| // Implementation of an instrument to measure elapsed wall-clock time in microseconds. |
| class WallClockTimer : public Instrument |
| { |
| public: |
| // Construct a Wall Clock Timer |
| WallClockTimer() = default; |
| ~WallClockTimer() = default; |
| |
| // Start the Wall clock timer |
| void Start() override; |
| |
| // Stop the Wall clock timer |
| void Stop() override; |
| |
| // Get the name of the timer |
| const char* GetName() const override; |
| |
| // Get the recorded measurements |
| std::vector<Measurement> GetMeasurements() const override; |
| |
| #if USE_CLOCK_MONOTONIC_RAW |
| using clock = MonotonicClockRaw; |
| #else |
| using clock = std::chrono::steady_clock; |
| #endif |
| |
| ARMNN_DLLEXPORT static const std::string WALL_CLOCK_TIME; |
| static const std::string WALL_CLOCK_TIME_START; |
| static const std::string WALL_CLOCK_TIME_STOP; |
| |
| private: |
| clock::time_point m_Start; |
| clock::time_point m_Stop; |
| }; |
| |
| } //namespace armnn |