Messages in this thread | | | Date | Fri, 1 Jul 2005 10:25:55 -0400 | From | Benjamin LaHaise <> | Subject | Re: aio-stress throughput regressions from 2.6.11 to 2.6.12 |
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On Fri, Jul 01, 2005 at 01:26:00PM +0530, Suparna Bhattacharya wrote: > On one test system I see a degradation from around 17+ MB/s to 11MB/s > for random O_DIRECT AIO (aio-stress -o3 testext3/rwfile5) from 2.6.11 > to 2.6.12. It doesn't seem filesystem specific. Not good :(
What sort of io subsystem does it have? Also, does changing the elevator make any difference? I'm away for the long weekend, but will help look into this next week.
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