2008/1/25, Florent Berthaut <hitmuri@xxxxxxxxxx>:
Hi, I would like to know how did you disable your 2nd core ? Does it affect the general performances ?
Thanks
Mysth-R
Fernando Lopez-Lezcano a écrit :Ok finally, i tried to disable the second core ( i have a dual core
2GHz) and things get really better this way, i can lauch more
applications with 4,8ms latency and no xruns. I had already disabled
cpuspeed but it looks like it was not enough.
That points to a realtime kernel problem with (probably) timekeeping in
two core processors (ie: "time of day" is not perfectly synchronized
between the processors so that if jack migrates from one to another it
appears as there has been too much delay and things don't work as
intended). I have seen this happen in 2.6.23.x + rt14.
What happens if you boot dual core with the "idle=poll" kernel
parameter? (I assume this happens with 2.6.22.x).
-- Fernando
Looks like it solves the problem, even the 2.6.23.x (latest ccrma kernel) works well with this parameter.
Thanks.
Florent
Hi, I would like to know how did you disable your 2nd core ? Does it affect the general performances ?
Thanks
Mysth-R
--
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* http://mysthr.free.fr => Site dédié à l'audio sous Fedora/PlanetCCRMA.
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