From: tytso@mit.edu
To: Dave Chinner <david@fromorbit.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
xfs@oss.sgi.com
Subject: Re: [PATCH 3/4] writeback: pay attention to wbc->nr_to_write in write_cache_pages
Date: Sun, 25 Apr 2010 22:45:27 -0400 [thread overview]
Message-ID: <20100426024527.GD13043@thunk.org> (raw)
In-Reply-To: <20100426024302.GC13043@thunk.org>
On Sun, Apr 25, 2010 at 10:43:02PM -0400, tytso@MIT.EDU wrote:
> Have you tested with multiple files that are subject to writeout at
> the same time? After all, if your I/O allocator does a great job of
> keeping the files contiguous in chunks larger tham 4MB, then if you
> have two or more files that need to be written out, the page allocator
> will round robin between the two files in 4MB chunks, and that might
> not be considered an ideal I/O pattern.
Argh. Sorry for not proof reading better before hitting the send
key....
s/tham/than/
s/page allocator/writeback code/
- Ted
next prev parent reply other threads:[~2010-04-26 2:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-20 2:41 [PATCH 0/4] writeback: tracing and wbc->nr_to_write fixes Dave Chinner
2010-04-20 2:41 ` [PATCH 1/4] writeback: initial tracing support Dave Chinner
2010-05-21 15:06 ` Christoph Hellwig
2010-04-20 2:41 ` [PATCH 2/4] writeback: Add tracing to balance_dirty_pages Dave Chinner
2010-04-20 2:41 ` [PATCH 3/4] writeback: pay attention to wbc->nr_to_write in write_cache_pages Dave Chinner
2010-04-22 19:07 ` Jan Kara
2010-04-25 3:33 ` tytso
2010-04-26 1:49 ` Dave Chinner
2010-04-26 2:43 ` tytso
2010-04-26 2:45 ` tytso [this message]
2010-04-27 3:30 ` Dave Chinner
2010-04-29 21:39 ` Andrew Morton
2010-04-30 6:01 ` Aneesh Kumar K. V
2010-04-30 19:43 ` Andrew Morton
2010-05-01 19:47 ` tytso
2010-04-20 2:41 ` [PATCH 4/4] xfs: remove nr_to_write writeback windup Dave Chinner
2010-04-22 19:09 ` Jan Kara
2010-04-26 0:46 ` Dave Chinner
2010-04-20 3:40 ` [PATCH 5/4] writeback: limit write_cache_pages integrity scanning to current EOF Dave Chinner
2010-04-20 23:28 ` Jamie Lokier
2010-04-20 23:31 ` Dave Chinner
2010-04-22 19:13 ` Jan Kara
2010-04-20 12:02 ` [PATCH 0/4] writeback: tracing and wbc->nr_to_write fixes Richard Kennedy
2010-04-20 23:29 ` Dave Chinner
2010-05-21 15:05 ` Christoph Hellwig
2010-05-22 0:09 ` Dave Chinner
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