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Re: [PATCH] Improve buffered streaming write ordering

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From: Dave Chinner
Subject: Re: [PATCH] Improve buffered streaming write ordering
Date: Thursday, October 2, 2008 - 4:43 pm

On Thu, Oct 02, 2008 at 11:48:56PM +0530, Aneesh Kumar K.V wrote:

Quite frankly, a simple streaming buffered write should *never*
trigger writeback from the LRU in memory reclaim. That indicates
that some feedback loop has broken down and we are not cleaning
pages fast enough or perhaps in the correct order. Page reclaim in
this case should be reclaiming clean pages (those that have already
been written back), not writing back random dirty pages.

Cheers,

Dave.
-- 
Dave Chinner
david@fromorbit.com
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Messages in current thread:
[PATCH] Improve buffered streaming write ordering, Chris Mason, (Wed Oct 1, 11:40 am)
Re: [PATCH] Improve buffered streaming write ordering, Andrew Morton, (Wed Oct 1, 9:52 pm)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Thu Oct 2, 5:20 am)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Thu Oct 2, 9:12 am)
Re: [PATCH] Improve buffered streaming write ordering, Aneesh Kumar K.V, (Thu Oct 2, 11:08 am)
Re: [PATCH] Improve buffered streaming write ordering, Aneesh Kumar K.V, (Thu Oct 2, 11:18 am)
Re: [PATCH] Improve buffered streaming write ordering, Andrew Morton, (Thu Oct 2, 12:44 pm)
Re: [PATCH] Improve buffered streaming write ordering, Dave Chinner, (Thu Oct 2, 4:43 pm)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Thu Oct 2, 6:11 pm)
Re: [PATCH] Improve buffered streaming write ordering, Nick Piggin, (Thu Oct 2, 7:43 pm)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Fri Oct 3, 5:07 am)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Fri Oct 3, 12:45 pm)
Re: [PATCH] Improve buffered streaming write ordering, Aneesh Kumar K.V, (Mon Oct 6, 3:16 am)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Mon Oct 6, 7:21 am)
Re: [PATCH] Improve buffered streaming write ordering, Aneesh Kumar K.V, (Tue Oct 7, 1:45 am)
Re: [PATCH] Improve buffered streaming write ordering, Christoph Hellwig, (Tue Oct 7, 2:05 am)
Re: [PATCH] Improve buffered streaming write ordering, Aneesh Kumar K.V, (Tue Oct 7, 3:02 am)
Re: [PATCH] Improve buffered streaming write ordering, Theodore Tso, (Tue Oct 7, 6:29 am)
Re: [PATCH] Improve buffered streaming write ordering, Christoph Hellwig, (Tue Oct 7, 6:36 am)
Re: [PATCH] Improve buffered streaming write ordering, Peter Staubach, (Tue Oct 7, 6:55 am)
Re: [PATCH] Improve buffered streaming write ordering, Chuck Lever, (Tue Oct 7, 7:38 am)
Re: [PATCH] Improve buffered streaming write ordering, Nick Piggin, (Tue Oct 7, 7:46 am)
Re: [PATCH] Improve buffered streaming write ordering, Chris Mason, (Thu Oct 9, 8:11 am)
Re: [PATCH] Improve buffered streaming write ordering, Dave Chinner, (Thu Oct 9, 10:13 pm)