Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261752AbUDDIYN (ORCPT ); Sun, 4 Apr 2004 04:24:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262259AbUDDIYN (ORCPT ); Sun, 4 Apr 2004 04:24:13 -0400 Received: from A88da.a.pppool.de ([213.6.136.218]:16000 "EHLO susi.maya.org") by vger.kernel.org with ESMTP id S261752AbUDDIYL (ORCPT ); Sun, 4 Apr 2004 04:24:11 -0400 Message-ID: <406FC621.1090507@A88da.a.pppool.de> Date: Sun, 04 Apr 2004 10:24:01 +0200 From: Andreas Hartmann User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040212 X-Accept-Language: de, en-us, en MIME-Version: 1.0 To: Mikhail Ramendik CC: linux-kernel@vger.kernel.org Subject: Re: 2.6.4 : 100% CPU use on EIDE disk operarion, VIA chipset References: In-Reply-To: X-Enigmail-Version: 0.82.5.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1241 Lines: 37 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/