Messages in this thread | | | Subject | Re: Random file I/O regressions in 2.6 [patch+results] | From | Ram Pai <> | Date | 19 May 2004 18:31:14 -0700 |
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On Wed, 2004-05-19 at 18:06, Alexey Kopytov wrote: > Ram Pai wrote: > > >Attached the cleaned up patch and the performance results of the patch. > > > >Overall Observation: > > 1.Small improvement with iozone with the patch, and overall > > much better performance than 2.4 > > 2.Small/neglegible improvement with DSS workload. > > 3.Negligible impact with sysbench, but results worser than > > 2.4 kernels > > Ram, can you clarify the status of this patch please? > > I ran the same sysbench test on my hardware with patched 2.6.6 and got > 122.2348s execution time, i.e. almost the same results as in the original > tests. Is this patch an intermediate step to improve the sysbench workload on > 2.6, or it just addresses another problem?
this patch by itself does not address your problem. Your problem is better addressed by Andrew's 'readahead-private' patch.
However; this patch applied on top of Andrew's 'readahead-private' patch may get you some extra performance.
Can you confirm this please? RP
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