Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264176AbUDBUzZ (ORCPT ); Fri, 2 Apr 2004 15:55:25 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264177AbUDBUzZ (ORCPT ); Fri, 2 Apr 2004 15:55:25 -0500 Received: from A88be.a.pppool.de ([213.6.136.190]:24706 "EHLO susi.maya.org") by vger.kernel.org with ESMTP id S264176AbUDBUzT (ORCPT ); Fri, 2 Apr 2004 15:55:19 -0500 Message-ID: <406DD2E2.7030602@A88be.a.pppool.de> Date: Fri, 02 Apr 2004 22:53:54 +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: Andrew Morton CC: mason@suse.com, linux-kernel@vger.kernel.org Subject: Re: Very poor performance with 2.6.4 References: <40672F39.5040702@p3EE062D5.dip0.t-ipconnect.de> <20040328200710.66a4ae1a.akpm@osdl.org> <4067BF2C.8050801@p3EE060D4.dip0.t-ipconnect.de> <1080570227.20685.93.camel@watt.suse.com> <406D21F6.8080005@A88c0.a.pppool.de> <20040402022348.00d55268.akpm@osdl.org> In-Reply-To: <20040402022348.00d55268.akpm@osdl.org> 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: 1653 Lines: 45 Andrew Morton wrote: > Andreas Hartmann wrote: >> >> Now, I tested 2.6.5-rc3-mm4. Same procedure. >> The good news first: >> 2.6.5-rc3-mm4 is nearly as fast as 2.4.25 - it is about 2% slower than >> 2.4.25 (with preemption turned on). >> >> Now the bad news: >> The system-processor-time is unchanged abnormal high: it is 34% (!) higher >> than in 2.4.25 (and about 1% more than in 2.4.6). >> >> >> Btw: Did the other profile outputs help to find the problem? >> >> These are the profile-values for an example run (make of kernel 2.6.5rc2) >> with 2.6.5rc3mm4: > > Spending a lot of time on do_softirq() while compiling stuff is peculiar. > > What device drivers are running at the time? disk/network/usb/etc? Module Size Used by Not tainted eepro100 19828 1 (autoclean) mii 2480 0 (autoclean) [eepro100] sis900 13036 1 (autoclean) crc32 2880 0 (autoclean) [sis900] usb-storage 26416 0 (unused) scsi_mod 87488 0 [usb-storage] uhci 25436 0 (unused) usbcore 62316 0 [usb-storage uhci] lvm-mod 44416 12 (autoclean) unix 15308 13 (autoclean) These are all modules (drivers), which are running - in both cases (2.4.25 and 2.6.x). 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/