Subject: Re: [linux-audio-dev] Re: image problem [was Re: [Alsa-devel] help for a levelmeter]
From: Peter L Jones (peter_AT_drealm.org.uk)
Date: Wed Oct 23 2002 - 21:25:24 EEST
On Tuesday 22 Oct 2002 22:10, Kai Vehmanen wrote:
> On Tue, 22 Oct 2002, Peter L Jones wrote:
> > When I run latencytest0.42-png from sbenno_AT_gardena.net, I get about 99%
> > sub 2ms latency. But jack still complains of xruns of about 50ms.
> > There's something here I'm simply failing to understand... but I don't
> > know where to
>
> Are you running JACK as root with "-R" or with "-R --asio"? Do these 50ms
> xruns occur even if you don't have any clients connected? If that's not
> the case, what client apps you have tested with? Also, do these xruns
> happen all by themself, or are you doing something at the same time (maybe
> moving windows or something). Does the HD led go on when the xrun occurs
> (kernel maybe syncing its caches)? What kernel, with low-latency patches,
> with pre-emption enabled or not?
D'oh! Where _did_ the -R go in my jack script...
Well, that sorted jackd out quite nicely. Now, onto why freqtweak locks out
my machine... (Once I've tried a few more things... I'm likely to end up
saying something foolish anyway, but I like to look like I'm trying :-).)
-- Peter
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