ref: 27fa7914ea1d2f8a6ca5cca0f0e5fe168d6b1b18
dir: /test/bench.cc/
/* * Copyright (c) 2018 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include <stdio.h> #include <algorithm> #include "test/bench.h" #include "vpx_ports/vpx_timer.h" void AbstractBench::RunNTimes(int n) { for (int r = 0; r < VPX_BENCH_ROBUST_ITER; r++) { vpx_usec_timer timer; vpx_usec_timer_start(&timer); for (int j = 0; j < n; ++j) { Run(); } vpx_usec_timer_mark(&timer); times_[r] = static_cast<int>(vpx_usec_timer_elapsed(&timer)); } } void AbstractBench::PrintMedian(const char *title) { std::sort(times_, times_ + VPX_BENCH_ROBUST_ITER); const int med = times_[VPX_BENCH_ROBUST_ITER >> 1]; int sad = 0; for (int t = 0; t < VPX_BENCH_ROBUST_ITER; t++) { sad += abs(times_[t] - med); } printf("[%10s] %s %.1f ms ( ±%.1f ms )\n", "BENCH ", title, med / 1000.0, sad / (VPX_BENCH_ROBUST_ITER * 1000.0)); }