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

2001-11-08 Thread Josh Green
On Wed, 2001-11-07 at 19:27, Paul Davis wrote: > > Ah, OK. yes, i suppose this might not be clear. > > when you set the size of a "period" in ALSA, you are basically setting > the interval at which the h/w will interrupt the host system to notify > it that space/data is available. so, if you set

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

2001-11-07 Thread Paul Davis
>I think I know the source of Maarten's question. In the >alsa-lib/test/latency.c the "readbuf" routine has the following code: > >do { >r = snd_pcm_readi(handle, buf, len); >} while (r == -EAGAIN); > >For the non-blocking case this would take up 100% of the CPU tim

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

2001-11-07 Thread Josh Green
On Wed, 2001-11-07 at 08:55, Paul Davis 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 a