1 /* 2 * Copyright (c) 2018 The WebM project authors. All Rights Reserved. 3 * 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. 9 */ 10 11 #include <stdio.h> 12 #include <algorithm> 13 14 #include "test/bench.h" 15 #include "vpx_ports/vpx_timer.h" 16 17 void AbstractBench::RunNTimes(int n) { 18 for (int r = 0; r < VPX_BENCH_ROBUST_ITER; r++) { 19 vpx_usec_timer timer; 20 vpx_usec_timer_start(&timer); 21 for (int j = 0; j < n; ++j) { 22 Run(); 23 } 24 vpx_usec_timer_mark(&timer); 25 times_[r] = static_cast<int>(vpx_usec_timer_elapsed(&timer)); 26 } 27 } 28 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]; 32 int sad = 0; 33 for (int t = 0; t < VPX_BENCH_ROBUST_ITER; t++) { 34 sad += abs(times_[t] - med); 35 } 36 printf("[%10s] %s %.1f ms ( %.1f ms )\n", "BENCH ", title, med / 1000.0, 37 sad / (VPX_BENCH_ROBUST_ITER * 1000.0)); 38 } 39
