Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263836AbUACWqk (ORCPT ); Sat, 3 Jan 2004 17:46:40 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263792AbUACWqk (ORCPT ); Sat, 3 Jan 2004 17:46:40 -0500 Received: from web40602.mail.yahoo.com ([66.218.78.139]:3501 "HELO web40602.mail.yahoo.com") by vger.kernel.org with SMTP id S263836AbUACWqh (ORCPT ); Sat, 3 Jan 2004 17:46:37 -0500 Message-ID: <20040103224636.5738.qmail@web40602.mail.yahoo.com> Date: Sat, 3 Jan 2004 23:46:36 +0100 (CET) From: =?iso-8859-1?q?szonyi=20calin?= Subject: Re: IDE performance drop between 2.4.23 and 2.6.0 - pinpointed! To: Pawel Dziekonski , linux-kernel@vger.kernel.org In-Reply-To: <20040103220159.GA22096@sun1000.pwr.wroc.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2369 Lines: 75 --- Pawel Dziekonski a ?crit : > hi, > > same problem here however it seems that i have pinpointed it > )at least > for me): > from the manpage of hdparm: -t Perform timings of device reads for benchmark and compari- son purposes. For meaningful results, this operation should be repeated 2-3 times on an otherwise inactive sys- tem (no other active processes) with at least a couple of megabytes of free memory. if the above conditions are not met your test is irrelevant > funny (? ;-) thing is that under 2.4 i have same issue... > > my chipset is kt133 (via), i use uhci. > > root@localhost:~ # cat /proc/interrupts > CPU0 > 0: 2283127 XT-PIC timer > 1: 4896 XT-PIC i8042 > 2: 0 XT-PIC cascade > 8: 1 XT-PIC rtc > 9: 0 XT-PIC acpi > 10: 0 XT-PIC eth0, VIA686A > 11: 271497 XT-PIC uhci_hcd, uhci_hcd > 12: 171840 XT-PIC bttv0, nvidia > 14: 33427 XT-PIC ide0 > 15: 1 XT-PIC ide1 > NMI: 0 > ERR: 4 > > tested under pure 2.6.0. ac scheduler, same under noop and > dead. > > regards, Pawel > > ps. i read the list via www so cc my the replies please. > thanks. > -- > Pawel Dziekonski , KDM WCSS > avatar:0:0: > Wroclaw Networking & Supercomputing Center, HPC Department > -> See message headers for privacy policy info. > - > 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/ ===== -- A mouse is a device used to point at the xterm you want to type in. Kim Alm on a.s.r. _________________________________________________________________ Do You Yahoo!? -- Une adresse @yahoo.fr gratuite et en fran?ais ! Yahoo! Mail : http://fr.mail.yahoo.com - 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/