Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 19 Dec 2001 11:45:32 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 19 Dec 2001 11:45:22 -0500 Received: from mail.pha.ha-vel.cz ([195.39.72.3]:271 "HELO mail.pha.ha-vel.cz") by vger.kernel.org with SMTP id ; Wed, 19 Dec 2001 11:45:01 -0500 Date: Wed, 19 Dec 2001 17:44:56 +0100 From: Vojtech Pavlik To: Brendan Pike Cc: linux-kernel@vger.kernel.org Subject: Re: IDE Harddrive Performance Message-ID: <20011219174456.A27487@suse.cz> In-Reply-To: <20011219153233.GA3424@leukertje.hitnet.rwth-aachen.de> <01121911444703.31762@spikes> <20011219160143.GA8658@gondor.com> <01121912181304.31762@spikes> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <01121912181304.31762@spikes>; from spike@superweb.ca on Wed, Dec 19, 2001 at 12:18:13PM -0400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 19, 2001 at 12:18:13PM -0400, Brendan Pike wrote: > On Wednesday 19 December 2001 12:01 pm, Jan Niehusmann wrote: > > On Wed, Dec 19, 2001 at 11:44:47AM -0400, Brendan Pike wrote: > > > I dont really know, I dont think its possible to get higher then that > > > from a 5400 RPM disk. Heres mine, > > > > /dev/hda: > > Timing buffered disk reads: 64 MB in 2.32 seconds = 27.59 MB/sec > > > > bash-2.05a# cat /proc/ide/hda/model > > Maxtor 98196H8 > > > > This is a 5400rpm drive, too. > > > > Jan > > > > - > > 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/ > > wowie, that is quite slow then. well udma33 mode is probebly why. if getting > an ata100 offboard card (since i have an ata100 drive) would make such a big > differance, im all for it. would there be any others reasons for such > slowness? is udma33 capible of more then 9MB/sec ?? Yes. Reaching up to 16 MB/sec with udma33 is quite possible. > [root@spikes spike]# cat /proc/ide/via > ----------VIA BusMastering IDE Configuration---------------- > Driver Version: 3.29 > South Bridge: VIA vt82c586b > Revision: ISA 0x47 IDE 0x6 > Highest DMA rate: UDMA33 > BM-DMA base: 0xe000 > PCI clock: 33MHz > Master Read Cycle IRDY: 1ws > Master Write Cycle IRDY: 1ws > BM IDE Status Register Read Retry: yes > Max DRDY Pulse Width: No limit > -----------------------Primary IDE-------Secondary IDE------ > Read DMA FIFO flush: yes yes > End Sector FIFO flush: no no > Prefetch Buffer: yes yes > Post Write Buffer: yes no > Enabled: yes yes > Simplex only: no no > Cable Type: 40w 40w > -------------------drive0----drive1----drive2----drive3----- > Transfer Mode: UDMA PIO PIO PIO > Address Setup: 30ns 120ns 30ns 120ns > Cmd Active: 90ns 90ns 90ns 90ns > Cmd Recovery: 30ns 30ns 30ns 30ns > Data Active: 90ns 330ns 90ns 330ns > Data Recovery: 30ns 270ns 30ns 270ns > Cycle Time: 90ns 600ns 120ns 600ns > Transfer Rate: 22.0MB/s 3.3MB/s 16.5MB/s 3.3MB/s > > dont know if that info would help much but there it is. also uses the via > kernel driver. But for some reason your drive is running at udma22 (udma1). -- Vojtech Pavlik SuSE Labs - 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/