On Thu, 2006-03-02 at 22:14 +0100, Guennadi Liakhovetski wrote: > On Thu, 2 Mar 2006, Lee Revell wrote: > > > On Thu, 2006-03-02 at 21:57 +0100, Guennadi Liakhovetski wrote: > > > On Thu, 2 Mar 2006, Lee Revell wrote: > > > > > > > On Thu, 2006-03-02 at 21:03 +0100, Guennadi Liakhovetski wrote: > > > > > Hi all > > > > > > > > > > I am puzzled... I do: > > > > > > > > > > chrt -f -p 50 `pidof "IRQ 5"` > > > > > chrt -f 40 arecord -t wav -f cd -d 600 test.wav > > > > > > > > > > > > > That should Just Work - what happens if you leave the IRQs alone and > > > > just try arecord? > > > > Forget about IRQs and priorities and chrt and just see what happens if > > you run arecord normally. > > Ok, I was running a rt-kernel right now, otherwise just started >
This is with all IRQ priorities left at the defaults? > arecord -t wav -f cd /tmp/test.wav > > as root, then switched between vt and X a couple of times, started > firefox, opened a terminal, and here we go: > > overrun!!! (at least 322.850 ms long) > > Tried without switching between X and vt - just started some find / in > another vt: > > overrun!!! (at least 1064.772 ms long) > > It is hard to beleave - 1 second overrun?!!! Is X running at nice -10? Some distros used to do this, and it can cause problems. Try "arecord -v" and post the output. Do you get the same result with "nice -n -20 arecord ..."? Lee ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
