57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
/*
|
|
* bench.c
|
|
* Copyright (C) 2014 c9s <c9s@c9smba.local>
|
|
*
|
|
* Distributed under terms of the MIT license.
|
|
*/
|
|
|
|
#include "bench.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <sys/time.h>
|
|
|
|
long unixtime() {
|
|
struct timeval tp;
|
|
long sec = 0L;
|
|
if (gettimeofday((struct timeval *) &tp, (NUL)) == 0) {
|
|
return tp.tv_sec;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
double microtime() {
|
|
struct timeval tp;
|
|
long sec = 0L;
|
|
double msec = 0.0;
|
|
char ret[100];
|
|
|
|
if (gettimeofday((struct timeval *) &tp, (NUL)) == 0) {
|
|
msec = (double) (tp.tv_usec / MICRO_IN_SEC);
|
|
sec = tp.tv_sec;
|
|
if (msec >= 1.0)
|
|
msec -= (long) msec;
|
|
return sec + msec;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
void bench_start(bench *b) {
|
|
b->start = microtime();
|
|
}
|
|
|
|
void bench_stop(bench *b) {
|
|
b->end = microtime();
|
|
}
|
|
|
|
double bench_iteration_speed(bench *b) {
|
|
return b->N / (b->end - b->start);
|
|
}
|
|
|
|
void bench_print_summary(bench *b) {
|
|
printf("%ld runs, ", b->R);
|
|
printf("%ld iterations each run, ", b->N);
|
|
printf("finished in %lf seconds\n", b->end - b->start );
|
|
printf("%.2f i/sec\n", (b->N * b->R) / (b->end - b->start) );
|
|
}
|