From owner-freebsd-current Wed Sep 24 17:13:24 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id RAA09733 for current-outgoing; Wed, 24 Sep 1997 17:13:24 -0700 (PDT) Received: from usr03.primenet.com (tlambert@usr03.primenet.com [206.165.6.203]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id RAA09712; Wed, 24 Sep 1997 17:13:08 -0700 (PDT) Received: (from tlambert@localhost) by usr03.primenet.com (8.8.5/8.8.5) id RAA01816; Wed, 24 Sep 1997 17:13:01 -0700 (MST) From: Terry Lambert Message-Id: <199709250013.RAA01816@usr03.primenet.com> Subject: Re: New timeout capability (was Re: cvs commit:....) To: se@FreeBSD.ORG (Stefan Esser) Date: Thu, 25 Sep 1997 00:13:00 +0000 (GMT) Cc: tlambert@primenet.com, dyson@FreeBSD.ORG, syssgm@dtir.qld.gov.au, freebsd-current@FreeBSD.ORG In-Reply-To: <19970924160022.50021@mi.uni-koeln.de> from "Stefan Esser" at Sep 24, 97 04:00:22 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Sender: owner-freebsd-current@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > > I think that 4K performs pretty darned well anyway though. In the > > > real world, I wouldn't think that one would see much of a performance > > > difference between 4K and 16K. > > > > For 8k, there used to be about a 40% improvement over 4k for iozone; I > > haven't really tried this for about 5 moths now, though. > > Hmmm, did you measure accesses to the > char device, block device, or a file ??? What? Huh? File... nothing else makes sense considering it's an FS blcok size, and the other two aren't FS-based accesses. 8-). > I'd be very surprised, if your IOZONE > results were different by 40% for file > accesses (were clustering helps). Well, they were. Like I said, it was about 5 months ago. I have the results squirrelled away somewhere, and could find them if I absolutely had to (it would probably take using my tap drive, though 8-(). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.