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From: safemode <safemode@speakeasy.net>
To: Andrei Lahun <Uman@editec-lotteries.com>, linux-kernel@vger.kernel.org
Subject: Re: problems with I/O performance with 2.4.12-ac3
Date: Fri, 19 Oct 2001 09:27:35 -0400	[thread overview]
Message-ID: <20011019132707Z278400-17408+2377@vger.kernel.org> (raw)
In-Reply-To: <20011019163058.1bb7c6f7.uman@chert>
In-Reply-To: <20011019163058.1bb7c6f7.uman@chert>

On Friday 19 October 2001 10:30, Andrei Lahun wrote:
> hello.
>
> I did a bonnie++ tests with 2.4.13-pre3(+aa vm)
>  and 2.4.12-ac3(+Rick patch).
> And i found that ac kernel have a big problems here.
> With linux kernel i got 22 Mb/c for read 19 for write and
> with ac  12 for read and 11 for write (both with ext2)
> If i used ext3 with ac kernel results little bit better.
> What is the reason for such regression in ac kernel ?
> And yes of course i had udma for both test.
>
> Andrei.

You should give ide and drive chipset info.  This is not a problem seen by 
everyone using the ac3 kernel.  Mine for instance run just fine.  What 
settings did you use with bonnie++?  all of this is required info if someone 
wanted to look and see why you are getting those numbers.

  reply	other threads:[~2001-10-19 13:27 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-19 14:30 Andrei Lahun
2001-10-19 13:27 ` safemode [this message]
2001-10-19 17:14 ` Andrei Lahun
2001-10-20  0:16   ` safemode
2001-10-19 15:53 Dmitry Volkoff
2001-10-22 12:09 ` Andrea Arcangeli

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