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 <[email protected]>
Signed-off-by: Raghavendra K T <[email protected]>
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Could you please let me know what do you feel about the patch ?
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