From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263777AbUESDv5 (ORCPT ); Tue, 18 May 2004 23:51:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263786AbUESDv5 (ORCPT ); Tue, 18 May 2004 23:51:57 -0400 Received: from mion.elka.pw.edu.pl ([194.29.160.35]:5580 "EHLO mion.elka.pw.edu.pl") by vger.kernel.org with ESMTP id S263777AbUESDv4 (ORCPT ); Tue, 18 May 2004 23:51:56 -0400 From: Bartlomiej Zolnierkiewicz To: "Justin Piszcz" , baldrick@free.fr, gene.heskett@verizon.net Subject: Re: Linux 2.6.6 appears to be 3 to 4 times slower than 2.6.5. Date: Tue, 18 May 2004 15:23:20 +0200 User-Agent: KMail/1.5.3 Cc: linux-kernel@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200405181519.17233.bzolnier@elka.pw.edu.pl> Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 17 of May 2004 17:06, Justin Piszcz wrote: > Sorry to all, it turns out (in two separate cases I had two different > problems that affected the results). > > Case 1: No SMP turned on for CPU w/HT after fix (~4.78 seconds compile time > (2.6GHZ w/HT)) > Case 2: Box had 4GB of NON-ECC memory in it, only recognized 2.56GB, took > out (2) 1GB DDR DIMM's, and the speed returned what it should be. (~4.3 > seconds compile time (3.0GHZ w/HT)) > > The control box was a 2.53GHZ (533MHZ BUS w/NO HT) = ~5.3seconds > > I have not tested 2.6.6 recently, but in one of my tests I believe it > worked OK, ever since 2.6.6 removed my /etc/lilo.conf and /etc/mtab and > several other files, I do not wish to touch that kernel with a 10 foot poll > :-P due to the IDE disk flush/cache issue. I told you this already: 2.6.6 IDE changes don't cause data corruption - but fixes some instead (that's why there were merged so quickly!) so stop spreading FUD and see http://bugme.osdl.org/show_bug.cgi?id=2672.