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From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 3/3] xfs: flush the CIL via a workqueue
Date: Mon, 18 Jul 2011 22:03:17 -0400	[thread overview]
Message-ID: <20110719020317.GC4259@infradead.org> (raw)
In-Reply-To: <1310960989-10284-4-git-send-email-david@fromorbit.com>

Generally looks okay, but doing a context switch in every log force
might bite us.  Less the general context switch overhead, but more
the nasty interactions with cfq, which are causing huge problems
for ext3/4, with no good way to fix them for workqueues.

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  reply	other threads:[~2011-07-19  2:03 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-18  3:49 [PATCH 0/3] xfs: convert more code to use workqueues Dave Chinner
2011-07-18  3:49 ` [PATCH 1/3] xfs: introduce an allocation workqueue Dave Chinner
2011-07-18 16:00   ` Christoph Hellwig
2011-07-19  1:24     ` Dave Chinner
2011-07-19  2:02       ` Christoph Hellwig
2011-07-19  3:14         ` Dave Chinner
2011-07-18  3:49 ` [PATCH 2/3] xfs: convert xfsbufd to use a workqueue Dave Chinner
2011-07-18 16:01   ` Christoph Hellwig
2011-07-19  1:25     ` Dave Chinner
2011-07-18  3:49 ` [PATCH 3/3] xfs: flush the CIL via " Dave Chinner
2011-07-19  2:03   ` Christoph Hellwig [this message]
2011-07-19  3:05     ` Dave Chinner
2011-07-19  3:11       ` Christoph Hellwig
2011-07-19  4:28         ` Dave Chinner
2011-11-30  9:52   ` Christoph Hellwig

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