* Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote: > So, just a thing. > -rt make the hrtimer's timers running on softirq context because the hrtimer_interrupt > doesn't run as a threaded interrupt, and then it is not preemptible right? > > In that case, sysprof will continue to run in hardirq context, as before, and > it will considerably increase the latency. And that matters here. > So I think it is important to put it on the reminder: hm, not sure. Do you know it numerically how much worst-case overhead it induces? Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html