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Diffstat (limited to 'tests/framework/instruments/InstrumentsStats.cpp')
-rw-r--r-- | tests/framework/instruments/InstrumentsStats.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/tests/framework/instruments/InstrumentsStats.cpp b/tests/framework/instruments/InstrumentsStats.cpp new file mode 100644 index 0000000000..2b05e45aad --- /dev/null +++ b/tests/framework/instruments/InstrumentsStats.cpp @@ -0,0 +1,70 @@ +/* + * Copyright (c) 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. + */ +#include "InstrumentsStats.h" + +namespace arm_compute +{ +namespace test +{ +namespace framework +{ +InstrumentsStats::InstrumentsStats(const std::vector<Measurement> &measurements) + : _min(nullptr), _max(nullptr), _median(nullptr), _mean(measurements.begin()->value().is_floating_point), _stddev(0.0) +{ + auto cmp_measurements = [](const Measurement & a, const Measurement & b) + { + return a.value() < b.value(); + }; + + auto add_measurements = [](Measurement::Value a, const Measurement & b) + { + return a + b.value(); + }; + + //Calculate min & max + const auto values = std::minmax_element(measurements.begin(), measurements.end(), cmp_measurements); + _min = &(*values.first); + _max = &(*values.second); + + // Calculate the median value + auto copy = measurements; + std::nth_element(copy.begin(), copy.begin() + (copy.size() / 2), copy.end(), cmp_measurements); + _median = ©[copy.size() / 2]; + + Measurement::Value sum_values = std::accumulate(measurements.begin(), measurements.end(), Measurement::Value(_min->value().is_floating_point), add_measurements); + + // Calculate the relative standard deviation + _mean = sum_values / measurements.size(); + std::vector<Measurement::Value> diff(measurements.size(), _min->value().is_floating_point); + std::transform(measurements.begin(), measurements.end(), diff.begin(), [&](const Measurement & x) + { + return x.value() - _mean; + }); + auto sq_sum = std::inner_product(diff.begin(), diff.end(), diff.begin(), Measurement::Value(_min->value().is_floating_point)); + auto variance = sq_sum / measurements.size(); + _stddev = Measurement::Value::relative_standard_deviation(variance, _mean); +} +} // namespace framework +} // namespace test +} // namespace arm_compute |