// type "man gethrtime" to see the man pages for this call
// Compile this on akbar with "gcc -lm hires_time.c -o hires_time"
// (the -lm flag includes the math library)

#include <sys/time.h>
#include <math.h>

int main(){

  hrtime_t start,end;
  int i, iters=100;
  double x = 100.0;;
  
  start=gethrtime();
  for (i=0;i<iters;i++){
    x = sqrt(x);
  }
  end=gethrtime();

  printf("Avg sqrt() time = %lld nsec\n", (end - start) / iters);


}