Subject: Re: [linux-audio-dev] DRI + Jack conflict?
From: Jesse Chappell (jesse_AT_essej.net)
Date: Wed Feb 11 2004 - 00:05:22 EET
Vincent Touquet wrote on Tue, 10-Feb-2004:
> On Tue, Feb 10, 2004 at 01:57:17PM -0500, Jesse Chappell wrote:
> >BTW, i just ran JACK realtime on a T41p with the firegl T2 128MB,
> >using the ati 3.7.0 drivers on a 2.4.22 PE/LL kernel with no problems.
> >Alsa 0.9.8 using the builtin audio (snd-intel8x0). the machine
> >itself has 512MB of RAM.
>
> Great !
> Thanks for testing :)
> Which distribution are you running ?
Gentoo. That kernel is the gentoo patched one (with LL and PE).
At some point I might test it with the RME hdsp/cardbus, but I
think it will be fine, the cardbus chipset is TI.
> >I tested with alsaplayer, jack-rack and freqtweak together loading
> >the system to > 80% cpu utilization and no xruns at
> >256 period size (and possibly less) and 48k.
> Cool.
> That's about 5.3 ms, which is good :)
I think you could even go lower.... i actually tried 64 and non-intensive
audio duties (alsaplayer only) seemed fine even while compiling.
It all depends on your target application.... for low-impact softsynths
or samplers I think you can get some pretty impressive playability
even from the builtin audio. As it only has a mic input... i
don't think you'll be using it for realtime fx :)
jlc
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