#include<stdio.h>
#include<time.h>
#include <sys/time.h>
#include <sys/resource.h>
int main(int argc, char** argv)
{
struct timeval tv;
struct timezone tz;
int i,delay,num_iter;
double init,start,stop;
if (argc!=3)
{
fprintf(stderr, "Usage: %s <sleep time..msec><num_iteration>\n", argv[0]);
exit(1);
}
// progname=argv[0];
delay=atoi(argv[1]);
num_iter=atoi(argv[2]);

printf("Delay is %d..num_iter is %d\n",delay,num_iter);
gettimeofday( &tv,&tz);
init=tv.tv_sec + tv.tv_usec*0.000001;
for(i=0;i<num_iter;++i)
{
gettimeofday( &tv,&tz);
start=tv.tv_sec + tv.tv_usec*0.000001;
// Now sleep
usleep(delay*1000);
gettimeofday( &tv,&tz);
stop=tv.tv_sec + tv.tv_usec*0.000001;
printf("Time is %ld : %ld..slept for %lf ms\n",tv.tv_sec,tv.tv_usec,(stopstart)*1000);
}
printf("Total time taken : actual %lf theory(excl. runtime): %d, ms
\n",(stopinit)*1000,num_iter*delay);
return 0;
}