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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[PATCH 0/9] xfs: candidate fixes for 2.6.39, Dave Chinner [PATCH 2/9] xfs: introduce a xfssyncd workqueue, Dave Chinner [PATCH 1/9] xfs: fix extent format buffer allocation size, Dave Chinner Re: [PATCH 1/9] xfs: fix extent format buffer allocation size, Christoph Hellwig Re: [PATCH 1/9] xfs: fix extent format buffer allocation size, Dave Chinner Re: [PATCH 1/9] xfs: fix extent format buffer allocation size, Christoph Hellwig [PATCH 7/9] xfs: push the AIL from memory reclaim and periodic sync, Dave Chinner Re: [PATCH 7/9] xfs: push the AIL from memory reclaim and periodic sync, Christoph Hellwig <= Re: [PATCH 7/9] xfs: push the AIL from memory reclaim and periodic sync, Dave Chinner [PATCH 9/9] xfs: convert log tail checking to a warning, Dave Chinner Re: [PATCH 9/9] xfs: convert log tail checking to a warning, Christoph Hellwig Re: [PATCH 9/9] xfs: convert log tail checking to a warning, Dave Chinner [PATCH 3/9] xfs: convert ENOSPC inode flushing to use new syncd workqueue, Dave Chinner [PATCH 8/9] xfs: catch bad block numbers freeing extents., Dave Chinner Re: [PATCH 8/9] xfs: catch bad block numbers freeing extents., Christoph Hellwig Re: [PATCH 8/9] xfs: catch bad block numbers freeing extents., Dave Chinner [PATCH 4/9] xfs: introduce background inode reclaim work, Dave Chinner Re: [PATCH 4/9] xfs: introduce background inode reclaim work, Christoph Hellwig

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