#include <stdio.h>
#include <sys/time.h>
 
int
main(void)
{
   timebasestruct_t start, finish;
   int val = 3;
   int secs, n_secs;
 
   /* get the time before the operation begins */
   read_real_time(&start, TIMEBASE_SZ);
 
   /* begin code to be timed */
   (void) printf("This is a sample line %d \n", val);
   /* end code to be timed   */
 
   /* get the time after the operation is complete */
   read_real_time(&finish, TIMEBASE_SZ);
 
   /*
    * Call the conversion routines unconditionally, to ensure
    * that both values are in seconds and nanoseconds regardless
    * of the hardware platform. 
    */
   time_base_to_time(&start, TIMEBASE_SZ);
   time_base_to_time(&finish, TIMEBASE_SZ);
 
   /* subtract the starting time from the ending time */
   secs = finish.tb_high - start.tb_high;
   n_secs = finish.tb_low - start.tb_low;
 
  /*
   * If there was a carry from low-order to high-order during 
   * the measurement, we may have to undo it. 
   */
   if (n_secs < 0)  {
      secs--;
      n_secs += 1000000000;
      }
 
   (void) printf("Sample time was %d seconds %d nanoseconds\n",
                secs, n_secs);
 
   exit(0);
}