Messages in this thread | | | Subject | Re: reaim - 2.6.3-mm1 IO performance down. | Date | Wed, 25 Feb 2004 15:36:51 -0800 | From | Cliff White <> |
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> cliff white <cliffw@osdl.org> wrote: > > > > For the same test on the same machine, results from 2.6.2-rc1-mm2 and 2.6.2 > -rc3-mm1 > > were within 1.0% of the linux-2.6.2 runs. So this is new. > > > > More data and tests if requested - are there some patch sets we should try > reverting? > > Thanks. You could try reverting adaptive-lazy-readahead.patch. If it is > not that I'd be suspecting CPU scheduler changes. Do you have uniprocessor > test results?
adaptive-lazy-readahead reverted, not really much change here: Kernel Users JPM Run Time 2.6.3 60 10327.87 34.16 seconds 2.6.3-mm1 60 8279.75 42.61 seconds 2.6.3-mm1-noalr 60 7731.76 45.63 seconds
2.6.3 80 10275.23 45.78 seconds 2.6.3-mm1 80 7841.31 59.99 seconds 2.6.3-mm1-noalr 80 8565.19 54.92 seconds
Full details, reaim tarball: http://developer.osdl.org/cliffw
cliffw
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