cdf4ee1e59
Summary: buck rules are not meant to be in the root buck file but instead next to source files. This diff moves benchmark rule into benchmark folder. Reviewed By: lucasr Differential Revision: D3992992 fbshipit-source-id: 34782ff73bbd5b799d83d0f01b553bfab928f1df
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/**
|
|
* Copyright (c) 2014-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <math.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
|
|
#define NUM_REPETITIONS 100
|
|
|
|
#define CSS_BENCHMARKS(BLOCK) \
|
|
int main(int argc, char const *argv[]) { \
|
|
clock_t __start; \
|
|
clock_t __endTimes[NUM_REPETITIONS]; \
|
|
{ BLOCK } \
|
|
return 0; \
|
|
}
|
|
|
|
#define CSS_BENCHMARK(NAME, BLOCK) \
|
|
__start = clock(); \
|
|
for (uint32_t __i = 0; __i < NUM_REPETITIONS; __i++) { \
|
|
{ BLOCK } \
|
|
__endTimes[__i] = clock(); \
|
|
} \
|
|
__printBenchmarkResult(NAME, __start, __endTimes);
|
|
|
|
int __compareDoubles(const void *a, const void *b) {
|
|
double arg1 = *(const double *) a;
|
|
double arg2 = *(const double *) b;
|
|
|
|
if (arg1 < arg2) {
|
|
return -1;
|
|
}
|
|
|
|
if (arg1 > arg2) {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void __printBenchmarkResult(char *name, clock_t start, clock_t *endTimes) {
|
|
double timesInMs[NUM_REPETITIONS];
|
|
double mean = 0;
|
|
clock_t lastEnd = start;
|
|
for (uint32_t i = 0; i < NUM_REPETITIONS; i++) {
|
|
timesInMs[i] = (endTimes[i] - lastEnd) / (double) CLOCKS_PER_SEC * 1000;
|
|
lastEnd = endTimes[i];
|
|
mean += timesInMs[i];
|
|
}
|
|
mean /= NUM_REPETITIONS;
|
|
|
|
qsort(timesInMs, NUM_REPETITIONS, sizeof(double), __compareDoubles);
|
|
double median = timesInMs[NUM_REPETITIONS / 2];
|
|
|
|
double variance = 0;
|
|
for (uint32_t i = 0; i < NUM_REPETITIONS; i++) {
|
|
variance += pow(timesInMs[i] - mean, 2);
|
|
}
|
|
variance /= NUM_REPETITIONS;
|
|
double stddev = sqrt(variance);
|
|
|
|
printf("%s: median: %lf ms, stddev: %lf ms\n", name, median, stddev);
|
|
}
|