2 * Copyright (c) 2018 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
14 #include "test/bench.h"
15 #include "vpx_ports/vpx_timer.h"
17 void AbstractBench::RunNTimes(int n) {
18 for (int r = 0; r < VPX_BENCH_ROBUST_ITER; r++) {
20 vpx_usec_timer_start(&timer);
21 for (int j = 0; j < n; ++j) {
24 vpx_usec_timer_mark(&timer);
25 times_[r] = static_cast<int>(vpx_usec_timer_elapsed(&timer));
29 void AbstractBench::PrintMedian(const char *title) {
30 std::sort(times_, times_ + VPX_BENCH_ROBUST_ITER);
31 const int med = times_[VPX_BENCH_ROBUST_ITER >> 1];
33 for (int t = 0; t < VPX_BENCH_ROBUST_ITER; t++) {
34 sad += abs(times_[t] - med);
36 printf("[%10s] %s %.1f ms ( ±%.1f ms )\n", "BENCH ", title, med / 1000.0,
37 sad / (VPX_BENCH_ROBUST_ITER * 1000.0));