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Re: [PATCH 7/9] xfs: push the AIL from memory reclaim and periodic sync

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 7/9] xfs: push the AIL from memory reclaim and periodic sync
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 6 Apr 2011 14:33:56 -0400
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1302070758-17312-8-git-send-email-david@xxxxxxxxxxxxx>
References: <1302070758-17312-1-git-send-email-david@xxxxxxxxxxxxx> <1302070758-17312-8-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
The patch looks correct, but I wonder what the performance implications
of flushing the AIL every 30 seconds are.  Did you benchmark the
patchset to see what it does to performance numbers for metadata
intensive workloads?

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