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    SubjectRe: v2.6.19-rt6, yum/rpm
    On Thu, 2006-12-07 at 13:07 -0800, Fernando Lopez-Lezcano wrote:
    > On Thu, 2006-12-07 at 21:58 +0100, Ingo Molnar wrote:
    > > * Fernando Lopez-Lezcano <nando@ccrma.Stanford.EDU> wrote:
    > >
    > > > Much better performance in terms of xruns with Jackd. Hardly any at
    > > > all as it should be. I'm starting to test -rt8 right now.
    > > >
    > > > Now, I still don't have an smp machine to test so the improvement
    > > > could be because I'm just running 64 bit up instead of smp. Or it
    > > > could have been the hardware on that other machine that had some
    > > > problem (either because it was starting to fail or because the kernel
    > > > drivers for that hardware were somehow triggering the xruns).
    > >
    > > i think it's the UP vs. SMP difference. We are chasing some SMP
    > > latencies right now that trigger on boxes that have deeper C sleep
    > > states. idle=poll seems to work around those problems.
    > Oh well, it looked too good, anyway, it is winter here so the extra
    > heating should be fine :-)

    Hmmm, when I was testing on smp I was running with the speed set to the
    top speed of the processors (through the small gnome cpuspeed applet). I
    imagine that the C states would not have been the problem...

    -- Fernando

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