C++ (Cpp) latency_tracker_event_in Examples

Example #1

File: wakeup_latency.c Project: efficios/latency-tracker

LT_PROBE_DEFINE(sched_waking, struct task_struct *p, int success)
#endif
{
	struct schedkey key;
	int i;
	enum latency_tracker_event_in_ret ret;

	if (!latency_tracker_get_tracking_on(tracker))
		return;

	if (!p || !p->pid)
		return;

	/*
	 * Make sure we won't wait for a process already running on another CPU.
	 */
	for (i = 0; i < NR_CPUS; i++)
		if (current_pid[i] == p->pid)
			return;

	key.pid = p->pid;

	ret = latency_tracker_event_in(tracker, &key, sizeof(key),
		1, latency_tracker_get_priv(tracker));
	if (ret == LATENCY_TRACKER_FULL) {
//		printk("latency_tracker sched: no more free events, consider "
//				"increasing the max_events parameter\n");
	} else if (ret) {
	//	printk("latency_tracker sched: error adding event\n");
	}
}

Example #2

File: wakeup_latency.c Project: sanidhya/latency_tracker

static
void probe_sched_wakeup(void *ignore, struct task_struct *p, int success)
{
	struct schedkey key;
	u64 thresh, timeout;
	int i;
	enum latency_tracker_event_in_ret ret;

	if (!p || !p->pid)
		return;

	/*
	 * Make sure we won't wait for a process already running on another CPU.
	 */
	for (i = 0; i < NR_CPUS; i++)
		if (current_pid[i] == p->pid)
			return;

	key.pid = p->pid;
	thresh = usec_threshold * 1000;
	timeout = usec_timeout * 1000;

	ret = latency_tracker_event_in(tracker, &key, sizeof(key),
		thresh, wakeup_cb, timeout, 1,
		latency_tracker_get_priv(tracker));
	if (ret == LATENCY_TRACKER_FULL) {
//		printk("latency_tracker sched: no more free events, consider "
//				"increasing the max_events parameter\n");
	} else if (ret) {
		printk("latency_tracker sched: error adding event\n");
	}
}