On Fri, Jul 29, 2005 at 11:52:37AM +0200, Florian Schmidt wrote: > On Fri, 29 Jul 2005 05:11:22 +0200 > Cesare <cesare@xxxxxxxxxxxxxxxxx> wrote: > > I've tried also with a vanilla 2.6.11.7 with both the realtime preempt > > and the realtime-lsm patch. And got even more xruns. > > But maybe I haven't disabled some daemon or something else. > Hmm, > a realtime preempt kernel alone will not nessecarily do any good. You > need to tune the irq handlers. If your network irq handler has a higher > RT prio than the soundcard irq handler, xruns are preprogrammed. > If you run RP make sure that: > a] the soundcard irq has the highest prio in the system (i.e. around 90) > b] all other irq's are left near their default (around 50) > c] jackd's prio is inbetween (i use 70 with great results) > If you then still get xruns, the hw is to blame [imho]. Or maybe a bug > in RP patches. Use the latency diagnosis tools that the RP kernel > provides to find out what part of the kernel produces the delays. Hi Flo, Is the wiki in a decently up to date state on this stuff? I'll be away next week, but starting August 8th, I _will_ follow through on chasing this down for the boxes I've got here. For now, I'm going to disable the NICs and put in eepros. -- Eric Dantan Rzewnicki | Systems Administrator Technical Operations Division | Radio Free Asia 2025 M Street, NW | Washington, DC 20036 | 202-530-4900 CONFIDENTIAL COMMUNICATION This e-mail message is intended only for the use of the addressee and may contain information that is privileged and confidential. Any unauthorized dissemination, distribution, or copying is strictly prohibited. If you receive this transmission in error, please contact network@xxxxxxxx
