[linux-audio-user] Re: x86_64 and ingo's realtime patches, works?
rlrevell at joe-job.com
Thu Jan 19 00:26:35 EST 2006
On Wed, 2006-01-18 at 21:22 -0800, Mike Taht wrote:
> The maximum scheduling latency was 31.177 msec. Finding out
> what caused it strikes me as an intensive exercise... and I don't
> think anyone in their right mind would run a workload like this.
It's actually not hard at all, and would be interesting to know.
Just enable the latency tracing options in the kernel configuration,
reset the tracer on boot with "echo 0
> /proc/sys/kernel/preempt_max_latency", and post the contents
of /proc/latency trace after generating some xruns.
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