Subject: Re: [linux-audio-user] latency issues
From: dwillis_AT_stx.rr.com
Date: Mon Oct 06 2003 - 14:38:03 EEST
one more note: i'm using pd (version 0.37 TEST 8) for all my realtime
audio, and the best i can get it to do is 16 ms latency. removing eth0
and it's modules does not improve performance.
On Mon, 6 Oct 2003 dwillis_AT_stx.rr.com wrote:
> two years ago i did a bunch of testing on latency to find the best kernel
> and patches for my system, and got some damn good results with several
> kernels (the best being 2.4.12-ac3-pe (alan cox's patch and pre-emptive
> kernel patch using alsa on suse 7.3 with gcc 2.96 20000731). i now have a
> new computer with gentoo linux and alsa 0.9.6, and can only get 16 ms
> latency with perfect results. same soundcard - m-audio audiophile 2496
> (ice1712). i've used kernel 2.4.20 with pe, ll, and some other options,
> compiling with gcc version 3.2.3 20030422, and i get the same result with
> all of them (as well as without pe or ll).
>
> does anyone know what the problem could be? alsa version? gcc version?
> kernel version? hardware (eth0 and soundcard share irq - never thought to
> test without eth0 loaded)? i'd like to get latency under 4 ms.
>
> thanks for your input,
> dave
>
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