Messages in this thread |  | | Date | Sat, 31 Jul 2004 21:55:38 -0500 | | From | Matt Mackall <> | | Subject | Re: Statistical methods for latency profiling |
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On Sat, Jul 31, 2004 at 01:22:37AM -0400, Lee Revell wrote: > Hey, > > Recently Ingo Molnar asked in one of the voluntary-preempt threads for > the minimum and average scheduling delay reported by jackd. JACK does > not currently maintain these statistics. > > I realized that the distribution of maximum latencies reported on each > process cycle is fairly normally distributed.
This is not at all what I would expect. Instead, I'd expect to see something like a gamma distribution, where we have everything clustered down close to zero, but with a very long tail in the positive direction falling off exponentially and obviously a hard limit on the other side..
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