Messages in this thread | | | Date | Sun, 11 Jul 2004 02:18:33 +1000 | From | Con Kolivas <> | Subject | Re: [announce] [patch] Voluntary Kernel Preemption Patch |
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Con Kolivas wrote: > I've conducted some of the old fashioned Benno's latency test on this > patch in various sysctl configurations. This was done on top of a > different tree but everything else was kept static. I have to preface > these results by saying I don't really get the 50ms size latencies > normally but I'm usually unable to get better than 3ms so I wasn't sure > what to expect. > > Only the both preempt off showed any "outlying" results with one spike > of ~20ms but the rest of the time being ~3ms. Enabling both forms of > preempt seemed to help a little but nothing drastic, and never below > 1ms. It was not universal that the latencies were better, but there was > a trend towards better latency. I suspect that those who are getting > huge latencies may see a bigger change with this patch than I did. > > http://ck.kolivas.org/latency/ > > Con
Ooops forgot to mention this was running reiserFS 3.6 on software raid0 2x IDE with cfq elevator.
Con [unhandled content-type:application/pgp-signature] | |