/* TSC sync test
 *		by: john stultz (johnstul@us.ibm.com)
 *		(C) Copyright IBM 2003, 2005
 *		Licensed under the GPL
 */


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

#define CALLS_PER_LOOP 64

# define	rdtscll(val)	__asm__ __volatile__("rdtsc" : "=A" (val))

int main(int argc, char *argv[])
{
	unsigned long long list[CALLS_PER_LOOP];
	int i, inconsistent;


	/* timestamp start of test */
	system("date");
	while(1){
		inconsistent = 0;

		/* Fill list */
		for(i=0; i < CALLS_PER_LOOP; i++)
			rdtscll(list[i]);
		
		/* Check for inconsistencies */
		for(i=0; i < CALLS_PER_LOOP-1; i++)
			if(list[i] > list[i+1])
				inconsistent = i+1;

		/* display inconsistency */
		if(inconsistent){
			inconsistent--;
			for(i=0; i < CALLS_PER_LOOP; i++){
				if(i == inconsistent)
					printf("--------------------\n");
				printf("%llu\n",list[i]);
				if(i == inconsistent + 1 )
					printf("--------------------\n");
			}
			fflush(0);
			/* timestamp inconsistency*/
			system("date");	
		}

	}
	return 0;
}