From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: BUG?: VIA IDE transfer-rate problem Date: Wed, 18 Jan 2006 11:27:53 +0100 Message-ID: <58cb370e0601180227q4807c531pc2319ff569d9e449@mail.gmail.com> References: <200601131909.07981.pvrusb2@toplitzer.net> <58cb370e0601170517v6fe68992ma5bdc67d5eb1e6f1@mail.gmail.com> <200601171703.42509.pvrusb2@toplitzer.net> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Return-path: Received: from uproxy.gmail.com ([66.249.92.204]:26952 "EHLO uproxy.gmail.com") by vger.kernel.org with ESMTP id S932342AbWARK14 convert rfc822-to-8bit (ORCPT ); Wed, 18 Jan 2006 05:27:56 -0500 Received: by uproxy.gmail.com with SMTP id s2so239486uge for ; Wed, 18 Jan 2006 02:27:54 -0800 (PST) In-Reply-To: <200601171703.42509.pvrusb2@toplitzer.net> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Helmut Toplitzer Cc: linux-ide@vger.kernel.org, dbrownell@users.sourceforge.net, linux-usb-devel@lists.sourceforge.net On 1/17/06, Helmut Toplitzer wrote: > Hi! > > > > > > > 37MB/s with CPU not utilized > > > 55MB/s with CPU 100% utilized > > > > I can't reproduce this locally, please send me your kernel > > config. Although I have Intel chipset it is still worth a try > > if it is generic kernel bug. I don't remember seeing anything > > like that on my old VIA system which also had VT8235 > > southbridge - if somebody has similar machine to Helmut's > > please try to reproduce this behavior (thanks!). > > > > Ok. I made one more test: disabling all usb in the bios. > (Sorry, can not unplug. It's onboard.) > Booting to init 1 without loading the usb-drivers. > Same results. 37MB/s initial, 55MB/s after loading the > burnK7 programm in background. Unloading bunrK7 and > transfer-rate is back to 37. > So this time no USB-device is connected and no driver > loaded. USB-ports disabled selected in the bios. Just wild guesses but please try: * booting with "cpu=poll" parameter * kernel with ACPI and Power Management disabled > If you still think this is a usb-thingy I will shift > my communication to linux-usb-devel. Please keep linux-ide@ and me in cc:. Thanks. Bartlomiej