powerpc/benchmarks/gettimeofday.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * Copyright 2015, Anton Blanchard, IBM Corp.
0004  */
0005
0006 #include <sys/time.h>
0007 #include <stdio.h>
0008
0009 #include "utils.h"
0010
0011 static int test_gettimeofday(void)
0012 {
0013     int i;
0014
0015     struct timeval tv_start, tv_end;
0016
0017     gettimeofday(&tv_start, NULL);
0018
0019     for(i = 0; i < 100000000; i++) {
0020         gettimeofday(&tv_end, NULL);
0021     }
0022
0023     printf("time = %.6f\n", tv_end.tv_sec - tv_start.tv_sec + (tv_end.tv_usec - tv_start.tv_usec) * 1e-6);
0024
0025     return 0;
0026 }
0027
0028 int main(void)
0029 {
0030     return test_harness(test_gettimeofday, "gettimeofday");
0031 }