C++ (Cpp) sleep_nsecs Examples

Example #1

File: builtin-sched.c Project: 908626950/linux

static void test_calibrations(struct perf_sched *sched)
{
	u64 T0, T1;

	T0 = get_nsecs();
	burn_nsecs(sched, 1e6);
	T1 = get_nsecs();

	printf("the run test took %" PRIu64 " nsecs\n", T1 - T0);

	T0 = get_nsecs();
	sleep_nsecs(1e6);
	T1 = get_nsecs();

	printf("the sleep test took %" PRIu64 " nsecs\n", T1 - T0);
}

Example #2

File: builtin-sched.c Project: valentil/CS-411-Group-13

static void calibrate_sleep_measurement_overhead(void)
{
	u64 T0, T1, delta, min_delta = 1000000000ULL;
	int i;

	for (i = 0; i < 10; i++) {
		T0 = get_nsecs();
		sleep_nsecs(10000);
		T1 = get_nsecs();
		delta = T1-T0;
		min_delta = min(min_delta, delta);
	}
	min_delta -= 10000;
	sleep_measurement_overhead = min_delta;

	printf("sleep measurement overhead: %Ld nsecs\n", min_delta);
}