From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: Christoph Hellwig <hch@infradead.org>, xfs@oss.sgi.com
Subject: Re: XFS metadata flushing design - current and future
Date: Tue, 30 Aug 2011 03:10:27 -0400 [thread overview]
Message-ID: <20110830071027.GA9566@infradead.org> (raw)
In-Reply-To: <20110830070641.GR3162@dastard>
On Tue, Aug 30, 2011 at 05:06:42PM +1000, Dave Chinner wrote:
>
> The advantage of using our own list is that we can still then sort
> them (might be thousands of buffers we queue in a single pass)
> before submitting them for IO. The on-stack plugging doesn't allow
> this at all, IIUC, as itis really just a FIFO list above the IO
> scheduler queues....
The on-stack plugging already sorts - manually in that code for the
request queues (not interesting for us), and currently by block number
as well using the elevator. But the current code is more of a
guideline, I have some fairly big changes for the that area of block
layer in the pipeline.
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next prev parent reply other threads:[~2011-08-30 7:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-27 8:03 XFS metadata flushing design - current and future Christoph Hellwig
2011-08-29 1:01 ` Dave Chinner
2011-08-29 6:33 ` Christoph Hellwig
2011-08-29 12:33 ` Christoph Hellwig
2011-08-30 1:28 ` Dave Chinner
2011-08-30 5:09 ` Christoph Hellwig
2011-08-30 7:06 ` Dave Chinner
2011-08-30 7:10 ` Christoph Hellwig [this message]
2011-09-09 22:31 ` Stewart Smith
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