[Cluster-devel] [GFS2 PATCH] Reduce truncate IO traffic
Steven Whitehouse
swhiteho at redhat.com
Mon Aug 20 14:56:30 UTC 2007
Hi,
Now in the -nmw git tree. Thanks,
Steve.
On Mon, 2007-08-20 at 09:29 -0400, Wendy Cheng wrote:
> Current GFS2 setattr call unconditionally invokes do_shrink even the
> requested size and actual file size are equal. This has generated large
> amount of extra IOs found during NFS benchmark runs. This patch moves
> the relevant logic out of shrink code path. Since setattr is a system
> call, the time stamps update is still required.
>
> -- Wendy
>
>
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