From: Bart Samwel <bart@samwel.tk>
To: Jan De Luyck <lkml@kcore.org>
Cc: linux-kernel@vger.kernel.org, Dax Kelson <dax@gurulabs.com>,
Kiko Piris <kernel@pirispons.net>, Bartek Kania <mrbk@gnarf.org>,
Simon Mackinlay <smackinlay@mail.com>
Subject: Re: [PATCH] Laptop-mode v7 for linux 2.6.1
Date: Mon, 12 Jan 2004 14:41:16 +0100 [thread overview]
Message-ID: <4002A3FC.3000000@samwel.tk> (raw)
In-Reply-To: <200401121343.34688.lkml@kcore.org>
Jan De Luyck wrote:
>>2. Stop klogd, do "echo 1 > /proc/sys/vm/block_dump" and see which
>>process keeps your disk spun up using dmesg.
>
> Welll.... i see no READs, and the writes i see is spamd, kmail, pdflush,
> reiserfs/0.
How are the WRITEs grouped, are they grouped together or do they seem to
occur more evenly spaced? When you use "sync", how long until the next
WRITE? What are the values of /proc/sys/vm/dirty_expire_centisecs and
/proc/sys/vm/dirty_writeback_centisecs? Are you sure you are running a
kernel that supports the commit= option with reiserfs? (This option was
added in 2.6.1.)
I've never tested laptop mode with reiserfs BTW, does anybody else here
have experience with laptop mode and reiserfs?
-- Bart
next prev parent reply other threads:[~2004-01-12 13:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-10 10:38 [PATCH] Laptop-mode v7 for linux 2.6.1 Bart Samwel
2004-01-10 11:15 ` Dax Kelson
2004-01-12 9:45 ` Jan De Luyck
2004-01-12 9:59 ` Bart Samwel
2004-01-12 12:50 ` Dax Kelson
2004-01-12 12:59 ` Bart Samwel
2004-01-12 15:04 ` Valdis.Kletnieks
2004-01-12 11:12 ` Jan De Luyck
2004-01-12 11:22 ` Bart Samwel
2004-01-12 12:43 ` Jan De Luyck
2004-01-12 13:41 ` Bart Samwel [this message]
2004-01-12 13:32 ` Hugang
2004-01-12 17:30 ` Dumitru Ciobarcianu
2004-01-12 12:19 ` Kiko Piris
2004-01-12 12:45 ` Jan De Luyck
2004-01-12 13:09 ` Jan De Luyck
2004-01-12 14:02 ` Jens Axboe
2004-01-13 11:00 ` Jan De Luyck
2004-01-13 11:01 ` Jens Axboe
2004-01-13 12:46 ` Bart Samwel
2004-01-13 14:21 ` Hugang
2004-01-13 17:17 ` Jan De Luyck
2004-02-11 6:24 ` Jan De Luyck
2004-02-11 13:00 ` Micha Feigin
-- strict thread matches above, loose matches on Subject: below --
2004-01-12 17:07 Kai Krueger
2004-01-12 19:31 ` Bart Samwel
2004-01-12 20:51 ` Dumitru Ciobarcianu
2004-01-12 21:50 ` Bart Samwel
2004-01-12 22:51 ` Andrew Morton
2004-01-13 1:10 Kai Krueger
2004-01-13 11:58 ` Bart Samwel
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