#include <stdlib.h>
#include <stdio.h>
#include <sys/times.h>
#include <time.h>

int main()
{
  struct tms process_times;
  clock_t start_time, finish_time;

  printf("Running ps with system\n");
  start_time = times(0);  /* get time clicks at start */
  /* NOTE: The above code does not work in Sun Solaris where the   */
  /*       parameter must point to a tms structure and not be NULL */
  system("ps -ax");
  finish_time = times(&process_times);
  printf("Done.\n");
  printf("Elapsed time = %f\nUser time = %f\nSystem time = %f\n",
	 (double)(finish_time - start_time)/CLOCKS_PER_SEC,
	 (double)process_times.tms_cutime/CLOCKS_PER_SEC,
	 (double)process_times.tms_cstime/CLOCKS_PER_SEC);
  exit(0);
}