test/sysperf/syscall6.c

   1 /*
   2  * syscall1.c
   3  *
   4  * $DragonFly: src/test/sysperf/syscall5.c,v 1.1 2005/03/28 03:13:24 dillon Exp $
   5  */
   6
   7 #include "blib.h"
   8
   9 int
  10 main(int ac, char **av)
  11 {
  12     long long count = 0;
  13     long long max;
  14     int j;
  15     struct timeval tv;
  16
  17     printf("timing standard gettimeofday() syscall\n");
  18
  19     start_timing();
  20     while (stop_timing(0, NULL) == 0) {
  21         for (j = 0; j < 100; ++j)
  22             gettimeofday(&tv, NULL);
  23         count += 100;
  24     }
  25     max = count;
  26     start_timing();
  27     for (count = 0; count < max; count += 100) {
  28         for (j = 0; j < 100; ++j)
  29             gettimeofday(&tv, NULL);
  30     }
  31     stop_timing(count, "gettimeofday()");
  32     return(0);
  33 }