Subject: Re: [linux-audio-user] Re: Recent LKML discussion on preempt/latency in 2.6 kernels
From: Jack O'Quin (joq_AT_io.com)
Date: Fri Mar 26 2004 - 02:49:27 EET
Fernando Pablo Lopez-Lezcano <nando_AT_ccrma.stanford.edu> writes:
> This is from the output of latencytest 0.52 and looks very good. But,
> and it is not a small but, when I tried to use real jack and jack
> applications I could not go down to 2x128 at all, kept getting small
> xruns. But an idle jack at 2x64 plus disk activity ("tar cf usr.tar
> /usr") would very seldom generate xruns.
Thanks for the data, Nando.
I've been wishing for a version of that latencytest that uses JACK.
Scheduling latency problems are exacerbated by JACK's demanding
requirements.
> Takashi's patches do improve the situation quite a lot.
Y'all do good work. With continued attention of this caliber, I
expect we'll get to 2.4 levels before long.
-- joq
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