[linux-audio-dev] Re: minimum tick time

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Subject: [linux-audio-dev] Re: minimum tick time
From: Maarten de Boer (mdeboer_AT_iua.upf.es)
Date: Wed Nov 07 2001 - 18:32:30 EET


I wrote:
> I don't think so, but I am probably completely missing the point.
> Let's start all over. I have a patched kernel, and I want to have
> low latency. I use latest alsa (cvs), and I run the latency test.
> (As you might have noticed, I submitted an filtersweep effect for
> the latency test, which Jaroslav added to the CVS. Try it with -e)
>
> - if I run in nonblock mode, it eats all CPU. Latency is excellent,
> but it would be nice if I could do something else in the meantime,
> for example run a GUI.
> $ latency -m 128 -M 128
> - if I run in block mode, i get XRUNs, even with larger bufsize
> $ latency -e -b -m 256 -M 256
> - if I run in poll mode, idem
> $ latency -e -b -m 256 -M 256 -p

Even with higher values this problems occur, though less frequently.

Maarten


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