[urcu.git] / tests / test_cycles_per_loop.c

#include <urcu/arch.h>
#include <stdio.h>

#define NR_LOOPS 1000000UL

static inline void loop_sleep(unsigned long l)
{
	while(l-- != 0)
		caa_cpu_relax();
}

int main()
{
	cycles_t time1, time2;

	time1 = caa_get_cycles();
	loop_sleep(NR_LOOPS);
	time2 = caa_get_cycles();
	printf("CPU clock cycles per loop: %g\n", (time2 - time1) /
						  (double)NR_LOOPS);
}
Commit	Line	Data
	1	#include <urcu/arch.h>
	2	#include <stdio.h>
	3
	4	#define NR_LOOPS 1000000UL
	5
	6	static inline void loop_sleep(unsigned long l)
	7	{
	8	while(l-- != 0)
	9	caa_cpu_relax();
	10	}
	11
	12	int main()
	13	{
	14	cycles_t time1, time2;
	15
	16	time1 = caa_get_cycles();
	17	loop_sleep(NR_LOOPS);
	18	time2 = caa_get_cycles();
	19	printf("CPU clock cycles per loop: %g\n", (time2 - time1) /
	20	(double)NR_LOOPS);
	21	}