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From: Paul Clements <paul.clements@steeleye.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, nbd-general@lists.sourceforge.net
Subject: [PATCH 1/1] NBD: make nbd default to deadline I/O scheduler
Date: Fri, 08 Feb 2008 11:47:42 -0500	[thread overview]
Message-ID: <47AC87AE.9040408@steeleye.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 152 bytes --]

There have been numerous reports of problems with nbd and cfq. Deadline 
gives better performance for nbd, anyway, so let's use it by default.

--
Paul

[-- Attachment #2: nbd_default_to_deadline.diff --]
[-- Type: text/x-patch, Size: 525 bytes --]

There have been numerous reports of problems with nbd and cfq. Deadline gives better performance for nbd, anyway, so let's use it by default.

Signed-Off-By: Paul Clements <paul.clements@steeleye.com>

--- ./drivers/block/nbd.c.max_nbd_killed	2008-02-07 16:46:24.000000000 -0500
+++ ./drivers/block/nbd.c	2008-02-08 11:38:47.000000000 -0500
@@ -667,6 +667,7 @@ static int __init nbd_init(void)
 			put_disk(disk);
 			goto out;
 		}
+		elevator_init(disk->queue, "deadline");
 	}
 
 	if (register_blkdev(NBD_MAJOR, "nbd")) {

             reply	other threads:[~2008-02-08 16:47 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-08 16:47 Paul Clements [this message]
2008-02-08 17:33 ` [PATCH 1/1] NBD: make nbd default to deadline I/O scheduler Randy Dunlap
2008-02-08 18:11   ` Andrew Morton
2008-02-08 18:41     ` Paul Clements
2008-02-08 20:45       ` Jens Axboe
2008-02-08 20:47         ` Jens Axboe
2008-02-08 21:23           ` Paul Clements
2008-02-08 22:02             ` Andrew Morton
2008-02-09 13:30               ` Paul Clements
2008-02-12 23:16                 ` Andrew Morton
2008-02-18 18:16                   ` Jens Axboe
2008-02-18 23:50                     ` Andrew Morton
2008-02-19  9:19                       ` Jens Axboe
2008-02-19  9:24                         ` Jens Axboe
2008-02-19 10:02                           ` Andrew Morton
2008-02-19 10:05                             ` Jens Axboe
2008-02-08 22:45       ` [Nbd] " Mike Snitzer

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