From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 28 Jan 2001 15:02:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 28 Jan 2001 15:02:16 -0500 Received: from smtp-server.maine.rr.com ([204.210.65.66]:35022 "HELO smtp-server.maine.rr.com") by vger.kernel.org with SMTP id ; Sun, 28 Jan 2001 15:01:59 -0500 Message-ID: <001401c08963$da160e20$b001a8c0@caesar> From: "paradox3" To: "Bruce Harada" , In-Reply-To: <003f01c088fb$a35c06e0$b001a8c0@caesar> <20010128174016.3fba71ad.bruce@ask.ne.jp><002901c08951$f751bfa0$b001a8c0@caesar> <20010129043143.3ac5fd99.bruce@ask.ne.jp> Subject: Re: Poor SCSI drive performance on SMP machine, 2.2.16 Date: Sun, 28 Jan 2001 14:52:31 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I did this: date dd if=/dev/zero of=TESTFILE bs=1024 count=102400 date sync date and I gave the time differences from the first to the last timestamp. Regards, Para-dox (paradox3@maine.rr.com) ----- Original Message ----- From: "Bruce Harada" To: "paradox3" Cc: Sent: Sunday, January 28, 2001 2:31 PM Subject: Re: Poor SCSI drive performance on SMP machine, 2.2.16 > > Hm. As a point of comparison, I use a similar system to yours (full SCSI, > though, no IDE) and I can copy a 100MB file from disk-to-disk, or on the > same disk, in around 13 seconds. Where are you copying to the SCSI drive > from - the same drive, an IDE disk, CDROM? If IDE, what are its > particulars? (Check with hdparm -iI /dev/hd?) > > -- > Bruce Harada > bruce@ask.ne.jp > > > > On Sun, 28 Jan 2001 12:44:29 -0500 > "paradox3" wrote: > > > > I don't get any messages relating to the drives in any syslog output. > > > > > > > > Do you get messages like the ones below in /var/log/messages? > > > > > > sym53c875-0-<0,0>: QUEUE FULL! 8 busy, 7 disconnected CCBs > > > sym53c875-0-<0,0>: tagged command queue depth set to 7 > > > > > > In fact, do you get any messages in your log files that look like they > > > might be related? > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/