From: Jeff Garzik <jgarzik@pobox.com>
To: marcelo.tosatti@cyclades.com
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, axboe@suse.de
Subject: Re: [PATCH] laptop mode
Date: Thu, 09 Oct 2003 10:02:38 -0400 [thread overview]
Message-ID: <3F856A7E.2010607@pobox.com> (raw)
In-Reply-To: <200310091103.h99B31ug014566@hera.kernel.org>
Linux Kernel Mailing List wrote:
> ChangeSet 1.1150.1.52, 2003/10/08 10:49:45-03:00, axboe@suse.de
>
> [PATCH] laptop mode
>
> Hi Marcelo,
>
> Lots of people have been using this patch with great success, and it's
> been in the SuSE kernel for some months now too. It is also in the -benh
> ppc tree
>
> Basically, it introduces a write back mode of dirty and journal data
> that is more suitable for laptops. At the block layer end, it schedules
> write out of dirty data after the disk has been idle for 5 seconds.
>
> Laptop mode can be switched on and off with /proc/sys/vm/laptop_mode.
> There is also a block_dump sysctl, which if enabled will dump who
> dirties and writes out data. This is very helpful in pinning down who is
> causing unnecessary writes to the disk.
Red Hat just dropped this patch since it was suspected of data
corruption ;-(
Jeff
next parent reply other threads:[~2003-10-09 14:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200310091103.h99B31ug014566@hera.kernel.org>
2003-10-09 14:02 ` Jeff Garzik [this message]
2003-10-09 14:05 ` [PATCH] laptop mode Jens Axboe
2003-10-09 14:17 ` Dave Jones
2003-10-09 14:26 ` Jens Axboe
2003-10-11 11:49 ` Pavel Machek
2003-10-11 13:59 ` Jens Axboe
2003-10-12 22:45 ` Barry K. Nathan
2003-10-14 17:50 ` Jeff Garzik
2003-10-09 14:09 ` Marcelo Tosatti
2003-10-09 14:11 ` Jens Axboe
2003-10-09 14:18 ` Jeff Garzik
2003-10-09 14:21 ` Jens Axboe
2003-10-09 14:28 ` Dave Jones
2003-10-17 19:42 ` Jan Rychter
2003-10-18 12:52 ` Jens Axboe
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=3F856A7E.2010607@pobox.com \
--to=jgarzik@pobox.com \
--cc=axboe@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=marcelo.tosatti@cyclades.com \
/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.