Messages in this thread | | | Date | Wed, 27 Oct 2004 17:05:48 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0 |
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* 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?
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.
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