Messages in this thread | | | From | "paradox3" <> | Subject | Re: Poor SCSI drive performance on SMP machine, 2.2.16 | Date | Sun, 28 Jan 2001 14:52:31 -0500 |
| |
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" <bruce@ask.ne.jp> To: "paradox3" <paradox3@maine.rr.com> Cc: <linux-kernel@vger.kernel.org> 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" <paradox3@maine.rr.com> 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/
| |