LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
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 ` 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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=47AC87AE.9040408@steeleye.com \
    --to=paul.clements@steeleye.com \
    --cc=akpm@linux-foundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=nbd-general@lists.sourceforge.net \
    --subject='Re: [PATCH 1/1] NBD: make nbd default to deadline I/O scheduler' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).