2 * Copyright (c) 2017-2018 ARM Limited.
4 * SPDX-License-Identifier: MIT
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:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
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
24 #ifndef ARM_COMPUTE_TEST_PMU_COUNTER
25 #define ARM_COMPUTE_TEST_PMU_COUNTER
27 #include "Instrument.h"
36 /** Implementation of an instrument to count CPU cycles. */
37 class PMUCounter : public Instrument
40 /** Construct a PMU counter.
42 * @param[in] scale_factor Measurement scale factor.
44 PMUCounter(ScaleFactor scale_factor)
48 case ScaleFactor::NONE:
52 case ScaleFactor::SCALE_1K:
56 case ScaleFactor::SCALE_1M:
57 _scale_factor = 1000000;
61 ARM_COMPUTE_ERROR("Invalid scale");
65 std::string id() const override;
66 void start() override;
68 MeasurementsMap measurements() const override;
71 PMU _pmu_cycles{ PERF_COUNT_HW_CPU_CYCLES };
72 PMU _pmu_instructions{ PERF_COUNT_HW_INSTRUCTIONS };
73 long long _cycles{ 0 };
74 long long _instructions{ 0 };
77 } // namespace framework
79 } // namespace arm_compute
80 #endif /* ARM_COMPUTE_TEST_PMU_COUNTER */