From: "Massimo Cetra" <mcetra@navynet.it>
To: "'Catalin(ux aka Dino) BOIE'" <util@deuroconsult.ro>,
linux-kernel@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Subject: RE: Strange vmstat output. 2.6.10 Scheduler?
Date: Tue, 1 Feb 2005 11:34:33 +0100 [thread overview]
Message-ID: <20050201103414.F195184008@server1.navynet.it> (raw)
In-Reply-To: <Pine.LNX.4.62.0502011217320.26221@webhosting.rdsbv.ro>
> It seems strange because iowait is at 90% but nothing is
> trasnfered to/from disk. Why is that?
>
> I run postgresql on this server and I'm not satistied by it's speed.
>
> Single Pentium IV, IDE disk.
>
> What can be the problem?
I have noticed it several months ago.
Maybe this thread could be useful for you.
http://www.ussg.iu.edu/hypermail/linux/kernel/0408.2/1758.html
According to my tests, 2.4 with -lck still performs better than 2.6, so I
use 2.4 on production DB servers with any DB.
Massimo
WARNING: multiple messages have this Message-ID (diff)
From: "Massimo Cetra" <mcetra@navynet.it>
To: "'Catalin(ux aka Dino) BOIE'" <util@deuroconsult.ro>,
<linux-kernel@vger.kernel.org>
Cc: <linux-ide@vger.kernel.org>
Subject: RE: Strange vmstat output. 2.6.10 Scheduler?
Date: Tue, 1 Feb 2005 11:34:33 +0100 [thread overview]
Message-ID: <20050201103414.F195184008@server1.navynet.it> (raw)
In-Reply-To: <Pine.LNX.4.62.0502011217320.26221@webhosting.rdsbv.ro>
> It seems strange because iowait is at 90% but nothing is
> trasnfered to/from disk. Why is that?
>
> I run postgresql on this server and I'm not satistied by it's speed.
>
> Single Pentium IV, IDE disk.
>
> What can be the problem?
I have noticed it several months ago.
Maybe this thread could be useful for you.
http://www.ussg.iu.edu/hypermail/linux/kernel/0408.2/1758.html
According to my tests, 2.4 with -lck still performs better than 2.6, so I
use 2.4 on production DB servers with any DB.
Massimo
next prev parent reply other threads:[~2005-02-01 10:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-01 10:21 Strange vmstat output. 2.6.10 Scheduler? Catalin(ux aka Dino) BOIE
2005-02-01 10:26 ` Jens Axboe
2005-02-01 10:36 ` Catalin(ux aka Dino) BOIE
2005-02-01 10:42 ` Jens Axboe
2005-02-01 10:46 ` Catalin(ux aka Dino) BOIE
2005-02-01 10:49 ` Jens Axboe
2005-02-01 10:54 ` Catalin(ux aka Dino) BOIE
2005-02-01 10:59 ` Catalin(ux aka Dino) BOIE
2005-02-01 10:34 ` Massimo Cetra [this message]
2005-02-01 10:34 ` Massimo Cetra
2005-02-01 10:48 ` Catalin(ux aka Dino) BOIE
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