Time performance reference

time_comparison.c

+/* Copyrights http://www.tutorialspoint.com/c_standard_library/c_function_clock.htm */
+#include <time.h>
+#include <stdio.h>
+
+int main()
+{
+   clock_t start_t, end_t, total_t;
+   int i;
+
+   start_t = clock();
+   printf("Starting of the program, start_t = %ld\n", start_t);
+    
+   printf("Going to scan a big loop, start_t = %ld\n", start_t);
+   for(i=0; i< 10000000; i++)
+   {
+   }
+   end_t = clock();
+   printf("End of the big loop, end_t = %ld\n", end_t);
+   
+   total_t = (double)(end_t - start_t) / CLOCKS_PER_SEC;
+   printf("Total time taken by CPU: %f\n", total_t  );
+   printf("Exiting of the program...\n");
+
+   return(0);
+}
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