Messages in this thread | | | Date | Wed, 27 Oct 2004 10:16:07 -0500 | From | "K.R. Foley" <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0 |
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Ingo Molnar wrote: > * K.R. Foley <kr@cybsft.com> wrote: > > >>I use the rtc-debug and amlat to generate histograms of latencies >>which is what I was trying to do when I found the rtc problem the >>first time. I believe that rtc-debug/amlat is much more accurate for >>generating histograms of latencies than realfeel is because the >>instrumentation is in the kernel rather than a userspace program. > > > ah, ok - nice. So rtc-debug+amlat is the only known-reliable way to > produce latency histograms?
Don't know that for sure, but it is the most reliable way that I am aware of.
> > Btw., rtc-debug's latency results could now be cross-validated with > -V0.4's wakeup tracer (and vice versa), because the two are totally > independent mechanisms.
Agreed. :)
> > Ingo >
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