1 /* 2 * Copyright (c) 2017-2021 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_TEST_WALL_CLOCK_TIMER 25 #define ARM_COMPUTE_TEST_WALL_CLOCK_TIMER 26 27 #include "Instrument.h" 28 29 #include <chrono> 30 31 namespace arm_compute 32 { 33 namespace test 34 { 35 namespace framework 36 { 37 /** Implementation of an instrument to measure elapsed wall-clock time in milliseconds. */ 38 template <bool output_timestamps> 39 class WallClock : public Instrument 40 { 41 public: 42 /** Construct a Wall clock timer. 43 * 44 * @param[in] scale_factor Measurement scale factor. 45 */ WallClock(ScaleFactor scale_factor)46 WallClock(ScaleFactor scale_factor) 47 { 48 switch(scale_factor) 49 { 50 case ScaleFactor::NONE: 51 _scale_factor = 1.f; 52 _unit = "us"; 53 break; 54 case ScaleFactor::TIME_MS: 55 _scale_factor = 1000.f; 56 _unit = "ms"; 57 break; 58 case ScaleFactor::TIME_S: 59 _scale_factor = 1000000.f; 60 _unit = "s"; 61 break; 62 default: 63 ARM_COMPUTE_ERROR("Invalid scale"); 64 } 65 }; 66 67 std::string id() const override; 68 void start() override; 69 void stop() override; 70 MeasurementsMap measurements() const override; 71 72 private: 73 #if defined(BARE_METAL) 74 uint64_t _start {}; 75 uint64_t _stop{}; 76 #else // !defined(BARE_METAL) 77 std::chrono::system_clock::time_point _start {}; 78 std::chrono::system_clock::time_point _stop{}; 79 #endif // defined(BARE_METAL) 80 float _scale_factor {}; 81 }; 82 83 using WallClockTimer = WallClock<false>; 84 using WallClockTimestamps = WallClock<true>; 85 } // namespace framework 86 } // namespace test 87 } // namespace arm_compute 88 #endif /* ARM_COMPUTE_TEST_WALL_CLOCK_TIMER */ 89