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