From: Andreas Hartmann <andihartmann@freenet.de>
To: Mikhail Ramendik <mr@ramendik.ru>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.4 : 100% CPU use on EIDE disk operarion, VIA chipset
Date: Sun, 04 Apr 2004 10:24:01 +0200 [thread overview]
Message-ID: <406FC621.1090507@A88da.a.pppool.de> (raw)
In-Reply-To: <fa.ljb660n.d2ofa9@ifi.uio.no>
Mikhail Ramendik wrote:
> Hello,
>
> Andreas Hartmann wrote:
>
>> > It turned out that on disk-intensive operation, the "system" CPU usage
>> > skyrockets. With a mere "cp" of a large file to the same direstory
>> > (tested with ext3fs and FAT32 file systems), it is 100% practically all
>> > of the time !
>> But you're right, 2.6.4 is slower than 2.4.25. See the thread "Very poor
>> performance with 2.6.4" here in the list.
>
> As recommended there, I have tried 2.6.5-rc3-mm4.
>
> No change. Still 100% CPU usage; the performance seems teh same.
Yes. But it's curious:
Take a tar-file, e.g. tar the compiled 2.6 kernel directory. Than, untar
it again - the machine behaves total normaly. And the 2.6-kernel is about
23% faster than the 2.4-kernel.
> Yours, Mikhail Ramendik
>
> P.S. Sorry for making all comments into answers to your letter. I just
> don't want to break the thread.
No problem - it's easier to read with comment directly in the text.
Regards,
Andreas Hartmann
next prev parent reply other threads:[~2004-04-04 8:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.g80v5s8.b2ofhi@ifi.uio.no>
[not found] ` <fa.idlmgtf.1pluljl@ifi.uio.no>
2004-04-04 8:07 ` 2.6.4 : 100% CPU use on EIDE disk operarion, VIA chipset Andreas Hartmann
2004-04-05 2:12 ` Bill Davidsen
[not found] ` <fa.ljb660n.d2ofa9@ifi.uio.no>
2004-04-04 8:24 ` Andreas Hartmann [this message]
2004-04-04 19:57 ` Mikhail Ramendik
2004-04-05 2:14 ` Bill Davidsen
[not found] <fa.ld6rcgc.1lhmd9q@ifi.uio.no>
2004-04-03 11:24 ` Andreas Hartmann
2004-04-03 12:51 ` Bill Davidsen
2004-04-03 14:12 ` Mikhail Ramendik
2004-04-04 8:02 ` Mikhail Ramendik
2004-04-02 21:54 Mikhail Ramendik
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