Messages in this thread |  | | Date | Mon, 03 Feb 2014 14:00:45 +0530 | From | Raghavendra K T <> | Subject | Re: [RFC PATCH V5] mm readahead: Fix readahead fail for no local memory and limit readahead pages |
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On 01/22/2014 04:23 PM, Raghavendra K T wrote: > max_sane_readahead returns zero on the cpu having no local memory > node. Fix that by returning a sanitized number of pages viz., > minimum of (requested pages, 4k) > > Result: > fadvise experiment with FADV_WILLNEED on a x240 machine with 1GB testfile > 32GB* 4G RAM numa machine ( 12 iterations) yielded > > Kernel Avg Stddev > base 7.2963 1.10 % > patched 7.2972 1.18 % > > Reviewed-by: Jan Kara <jack@suse.cz> > Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com> > ---
Could you please let me know what do you feel about the patch ?
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