From: Vivek Goyal <vgoyal@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH] xfs: Do background CIL flushes via a workqueue
Date: Tue, 27 Mar 2012 13:18:45 -0400 [thread overview]
Message-ID: <20120327171845.GD28707@redhat.com> (raw)
In-Reply-To: <20120327170309.GA6712@infradead.org>
On Tue, Mar 27, 2012 at 01:03:09PM -0400, Christoph Hellwig wrote:
> On Tue, Mar 27, 2012 at 12:19:41PM -0400, Vivek Goyal wrote:
> > So xfs either need to resort to similar optimizaiton where IO type from
> > both the process context is of same type or try to do all the IO from
> > one process context.
>
> All XFS log I/O is marked SYNC and (FUA and/or FLUSH).
In that case I am not sure if XFS should still face the idling issue. If
it does, then we need to debug it further and see why the fix is not
working.
Dave, any chance of 10 seconds of blktrace data when this problem happens?
Thanks
Vivek
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next prev parent reply other threads:[~2012-03-27 18:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-27 9:46 [PATCH] xfs: Do background CIL flushes via a workqueue Dave Chinner
2012-03-27 14:31 ` Christoph Hellwig
2012-03-27 15:57 ` Vivek Goyal
2012-03-27 16:03 ` Christoph Hellwig
2012-03-27 16:19 ` Vivek Goyal
2012-03-27 17:03 ` Christoph Hellwig
2012-03-27 17:18 ` Vivek Goyal [this message]
2012-03-27 17:23 ` Vivek Goyal
2012-03-29 8:52 ` Dave Chinner
2012-03-29 8:51 ` Dave Chinner
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