All of lore.kernel.org
 help / color / mirror / Atom feed
From: Frank van Maarseveen <frankvm@frankvm.com>
To: linux-raid@vger.kernel.org
Subject: 2.6.39[.1]: raid1 check blocks jbd on other md more than 120 seconds -- workaround
Date: Tue, 7 Jun 2011 10:24:35 +0200	[thread overview]
Message-ID: <20110607082435.GA2016@janus> (raw)
In-Reply-To: <20110602093644.GA8620@janus>

I did some more testing and apparently the issue can be avoided by
choosing the deadline scheduler instead of cfq. Either configure the
kernel with

	CONFIG_DEFAULT_IOSCHED="deadline"

or select the deadline I/O scheduler per device. In my case:

	echo deadline >/sys/block/sda/queue/scheduler
	echo deadline >/sys/block/sdb/queue/scheduler


-- 
Frank

      parent reply	other threads:[~2011-06-07  8:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-02  9:36 2.6.39: raid1 check blocks jbd on other md more than 120 seconds Frank van Maarseveen
2011-06-02  9:46 ` Mathias Burén
2011-06-03  7:38   ` Frank van Maarseveen
2011-06-03 12:08 ` Thomas Harold
2011-06-03 12:36   ` Frank van Maarseveen
2011-06-07  8:24 ` Frank van Maarseveen [this message]

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=20110607082435.GA2016@janus \
    --to=frankvm@frankvm.com \
    --cc=linux-raid@vger.kernel.org \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.