[Ocfs2-users] prefetch?

Sunil Mushran sunil.mushran at oracle.com
Mon Mar 1 16:30:32 PST 2010


Dmitry Rybin wrote:
> I have storage 2TB with 4K cluster size. Collected statistic says,
> that 4K max reading block from disc.
> But extX - variable read size up to 50K with cluster size 4K.
>
> ocfs2 have no prefetch?
>
> Centos 5.4, ocfs2-1.4.4-1
>   

Is the workload the same on the two volumes? This number
will vary with workload.

To answer your qs... yes. ocfs2 does readahead for inodes.



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