* [Cluster-devel] [GFS2 PATCH] Reduce truncate IO traffic
@ 2007-08-20 13:29 Wendy Cheng
2007-08-20 14:56 ` Steven Whitehouse
0 siblings, 1 reply; 2+ messages in thread
From: Wendy Cheng @ 2007-08-20 13:29 UTC (permalink / raw)
To: cluster-devel.redhat.com
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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* [Cluster-devel] [GFS2 PATCH] Reduce truncate IO traffic
2007-08-20 13:29 [Cluster-devel] [GFS2 PATCH] Reduce truncate IO traffic Wendy Cheng
@ 2007-08-20 14:56 ` Steven Whitehouse
0 siblings, 0 replies; 2+ messages in thread
From: Steven Whitehouse @ 2007-08-20 14:56 UTC (permalink / raw)
To: cluster-devel.redhat.com
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
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2007-08-20 14:56 ` Steven Whitehouse
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