Messages in this thread | | | Date | Tue, 28 Oct 2003 09:26:12 -0800 | From | cliff white <> | Subject | Re: 2.6.0-test8/test9 io scheduler needs tuning? |
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On Tue, 28 Oct 2003 10:50:04 +1100 Nick Piggin <piggin@cyberone.com.au> wrote:
> > > cliff white wrote: > > >On Tue, 28 Oct 2003 05:52:45 +0800 > >Michael Frank <mhf@linuxmail.org> wrote: > > > > > >>To my surprise 2.6 - which used to do better then 2.4 - does no longer > >>handle these test that well.
> >STP id Kernel Name MaxJPM Change Options > >281669 linux-2.6.0-test8 7014.42 0.0 > >281671 linux-2.6.0-test8 8294.94 +18.26% elevator=deadline > > > >The -mm kernels don't show this big delta. We also do not see this delta on > >smaller machines > > > > I'm working with Randy to fix this. Attached is what I have so far. See how > you go with it.
So far, looks quite good. ( i know 2.4.18 is wierd for some, but they were hot off the stp, so i used 'em )
4-cpu STP id Kernel Name MaxJPM Change Options 282391 linux-2.4.18 5250.23 0.00 282413 Nick's patch 5484.95 4.27 elevator=deadline 282413 Nick's patch 5416.51 3.06
282395 linux-2.4.18 6581.17 0.0 282415 Nick's patch 8293.95 20.6 282415 Nick's patch 8484.95 22.43 elevator=deadline
And, the graph is nice and flat! http://khack.osdl.org/stp/282416/results/jpm.png
Full results: http://developer.osdl.org/cliffw/reaim/index.html
Any test detail: http://khack.osdl.org/stp/<STP id>
cliffw
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