Messages in this thread | | | Date | Wed, 13 Aug 2003 14:06:41 -0700 (PDT) | From | Ram Pai <> | Subject | Re: [PATCH][2.6-mm] Readahead issues and AIO read speedup |
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I ran an Database workload on the test3-mm1 bits and got around 20% improvement. These bits have Suparna's readahead_patch.
The number of 4k read requests sent to the driver reduced significantly by 95%. Effectively generating lesser number of larger-size read-requests.
And the number of readahead-window-resets dropped down by 50%.
FYI, Ram Pai
On Fri, 8 Aug 2003, Suparna Bhattacharya wrote:
> On Thu, Aug 07, 2003 at 01:58:19PM -0700, Andrew Morton wrote: > > Badari Pulavarty <pbadari@us.ibm.com> wrote: > > > > > > On Thursday 07 August 2003 10:39 am, Andrew Morton wrote: > > > > Badari Pulavarty <pbadari@us.ibm.com> wrote: > > > > > We should do readahead of actual pages required by the current > > > > > read would be correct solution. (like Suparna suggested).
-- Ram Pai linuxram@us.ibm.com ----------------------------------
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