cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

gettimeofday.c (535B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Copyright 2015, Anton Blanchard, IBM Corp.
      4 */
      5
      6#include <sys/time.h>
      7#include <stdio.h>
      8
      9#include "utils.h"
     10
     11static int test_gettimeofday(void)
     12{
     13	int i;
     14
     15	struct timeval tv_start, tv_end;
     16
     17	gettimeofday(&tv_start, NULL);
     18
     19	for(i = 0; i < 100000000; i++) {
     20		gettimeofday(&tv_end, NULL);
     21	}
     22
     23	printf("time = %.6f\n", tv_end.tv_sec - tv_start.tv_sec + (tv_end.tv_usec - tv_start.tv_usec) * 1e-6);
     24
     25	return 0;
     26}
     27
     28int main(void)
     29{
     30	return test_harness(test_gettimeofday, "gettimeofday");
     31}