Re: [patch] voluntary-preempt-2.6.8.1-P0

Ingo Molnar
2004-08-16T03:27:46Z

* Lee Revell <rlrevell@joe-job.com> wrote:

> I believe the constant-time behavior that I reported was an artifact
> of ALSA xrun debugging. Now it seems like the latency produced *does*
> correspond directly to the amount of memory being mlockall'ed. If
> ./mlockall-test 1500 triggers an xrun at all it's ~0.2ms. 3000
> triggers a ~1ms xrun, and 10000 a ~3 ms xrun.

could you try more extreme values - e.g. does 100 MB cause a 30 msec
xrun?

Ingo