| /* |
| * Copyright (c) 2017-2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef ARM_COMPUTE_TEST_PMU_COUNTER |
| #define ARM_COMPUTE_TEST_PMU_COUNTER |
| |
| #include "Instrument.h" |
| #include "PMU.h" |
| |
| namespace arm_compute |
| { |
| namespace test |
| { |
| namespace framework |
| { |
| /** Implementation of an instrument to count CPU cycles. */ |
| class PMUCounter : public Instrument |
| { |
| public: |
| /** Construct a PMU counter. |
| * |
| * @param[in] scale_factor Measurement scale factor. |
| */ |
| PMUCounter(ScaleFactor scale_factor) |
| { |
| switch(scale_factor) |
| { |
| case ScaleFactor::NONE: |
| _scale_factor = 1; |
| _unit = ""; |
| break; |
| case ScaleFactor::SCALE_1K: |
| _scale_factor = 1000; |
| _unit = "K "; |
| break; |
| case ScaleFactor::SCALE_1M: |
| _scale_factor = 1000000; |
| _unit = "M "; |
| break; |
| default: |
| ARM_COMPUTE_ERROR("Invalid scale"); |
| } |
| }; |
| |
| std::string id() const override; |
| void start() override; |
| void stop() override; |
| MeasurementsMap measurements() const override; |
| |
| private: |
| PMU _pmu_cycles{ PERF_COUNT_HW_CPU_CYCLES }; |
| PMU _pmu_instructions{ PERF_COUNT_HW_INSTRUCTIONS }; |
| long long _cycles{ 0 }; |
| long long _instructions{ 0 }; |
| int _scale_factor{}; |
| }; |
| } // namespace framework |
| } // namespace test |
| } // namespace arm_compute |
| #endif /* ARM_COMPUTE_TEST_PMU_COUNTER */ |