From: Philip Martin <philip@codematters.co.uk>
To: Andrew Morton <akpm@osdl.org>
Cc: Nick Piggin <piggin@cyberone.com.au>, linux-kernel@vger.kernel.org
Subject: Re: 2.6.1 slower than 2.4, smp/scsi/sw-raid/reiserfs
Date: Tue, 03 Feb 2004 01:01:20 +0000 [thread overview]
Message-ID: <87isipvuvz.fsf@codematters.co.uk> (raw)
In-Reply-To: <20040202154959.283cf60b.akpm@osdl.org> (Andrew Morton's message of "Mon, 2 Feb 2004 15:49:59 -0800")
Andrew Morton <akpm@osdl.org> writes:
> Nick Piggin <piggin@cyberone.com.au> wrote:
>>
>> Andrew, any other ideas?
>
> There seems to be a lot more writeout happening.
As far as I can see (and hear!) that's true.
> You could try setting /proc/sys/vm/dirty_ratio to 60 and
> /proc/sys/vm/dirty_background_ratio to 40.
Not much different:
2.6.1 (without elevator=deadline)
dirty_ratio:60 dirty_background_ratio:40
245.58user 121.82system 3:31.79elapsed 173%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+3771340minor)pagefaults 0swaps
dirty_ratio:40 dirty_background_ratio:10 (the defaults)
245.75user 121.33system 3:35.13elapsed 170%CPU (0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (0major+3770826minor)pagefaults 0swaps
--
Philip Martin
next prev parent reply other threads:[~2004-02-03 1:01 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-01 21:34 2.6.1 slower than 2.4, smp/scsi/sw-raid/reiserfs Philip Martin
2004-02-01 23:11 ` Andrew Morton
2004-02-01 23:42 ` Philip Martin
2004-02-01 23:52 ` Nick Piggin
2004-02-02 0:51 ` Philip Martin
2004-02-02 5:15 ` Nick Piggin
2004-02-02 8:58 ` Nick Piggin
2004-02-02 18:36 ` Philip Martin
2004-02-02 23:36 ` Nick Piggin
2004-02-02 23:49 ` Andrew Morton
2004-02-03 1:01 ` Philip Martin [this message]
2004-02-03 3:02 ` Nick Piggin
2004-02-03 16:44 ` Philip Martin
2004-02-03 0:34 ` Philip Martin
2004-02-03 3:52 ` Nick Piggin
2004-02-02 18:08 ` Philip Martin
2004-02-03 3:46 ` Andrew Morton
2004-02-03 16:46 ` Philip Martin
2004-02-03 21:29 ` Andrew Morton
2004-02-03 21:53 ` Philip Martin
2004-02-04 5:48 ` Nick Piggin
2004-02-04 17:50 ` Philip Martin
2004-02-04 23:38 ` Philip Martin
2004-02-05 2:49 ` Nick Piggin
2004-02-05 14:27 ` Philip Martin
2004-02-14 0:10 ` Philip Martin
-- strict thread matches above, loose matches on Subject: below --
2004-02-03 6:55 Samium Gromoff
2004-02-03 7:07 ` Andrew Morton
2004-02-03 7:52 ` Samium Gromoff
2004-02-03 7:57 ` Nick Piggin
2004-02-03 15:58 ` Valdis.Kletnieks
2004-02-03 7:13 ` Nick Piggin
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