replacing readahead by preload

Krzysztof Lichota krzysiek at
Mon Feb 11 16:08:31 GMT 2008

Jérôme Bouat napisał(a):
> Hello,
> I get overall speed enhancement by using "preload" and removing "readahead".
> Why not doing like me for the default configuration ?

You probably are using outdated lists for readahead. Boot your kernel
with "profile" argument to update it. Then readahead should be better
than preload - preload is better in only some specific situations.

Please also test my prefetching kernel implemented for Ubuntu during
last Google Summer of Code - see

	Krzysztof Lichota

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