Date: 12 Dec 2004 13:36:48 -0000 From: tmseck-lists@netcologne.de (Thomas-Martin Seck) To: freebsd-current@freebsd.org Subject: Re: FreeBSD sound distortion problems with SB Live! fixed with PREEMPTION Message-ID: <20041212133648.969.qmail@laurel.tmseck.homedns.org> In-Reply-To: <20041211141852.M72997@carver.gumbysoft.com>
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* Doug White <dwhite@gumbysoft.com>: > I played a 160kb VBR MP3 with mpg321 (mpg123 was compiled to use esound on > this system so I decided to try something not so polluted) direct to each > card in turn with a -j3 buildworld running in the background, using the > same disk as the MP3s were located on. I ran the buildworld in a Konsole > window on KDE 3.2.3 and played the mp3's in another. > > I start getting wierdness when the load average hits 5+ with 0% idle. > Otherwise things hold up. Please test what happens when you produce really heavy disk activity in the background; untarring firefox or Xorg should be sufficient. > If you are getting distortion on an otherwise idle system I'll be more > interested, although that doesn't appear to be the case... Heavy ATA activity is sufficient for me, see my earlier post in this thread (I run RELENG_5 with the 4BSD scheduler, no WITNESS. PREEMPTION is enabled which seems to help a bit). pcm0 is on its own on irq 5.
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