From owner-freebsd-questions Wed Mar 15 15:32:27 2000 Delivered-To: freebsd-questions@freebsd.org Received: from boris.netgate.net (boris.netgate.net [204.145.147.154]) by hub.freebsd.org (Postfix) with ESMTP id 974DF37BD34 for ; Wed, 15 Mar 2000 15:32:23 -0800 (PST) (envelope-from fbsddave@mrcaffeine.com) Received: from localhost (wellsian@localhost) by boris.netgate.net (8.9.3/8.9.3) with ESMTP id PAA22700; Wed, 15 Mar 2000 15:29:08 -0800 (PST) (envelope-from fbsddave@mrcaffeine.com) Date: Wed, 15 Mar 2000 15:29:08 -0800 (PST) From: fbsd-dave X-Sender: wellsian@boris.netgate.net To: Mark Smith Cc: freebsd-questions@FreeBSD.ORG Subject: Re: vinum stats and question In-Reply-To: <200003151658.IAA31925@beta.tricity.wsu.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Use rawio to test, at least for vinum storage. Bonnie tests through system buffers and fibs. (though usually it's optimistic) -- from rawio(1)'s manpage -- rawio resembles bonnie in some of the things it does. It differs strong- ly from bonnie by using a raw disk device, which bypasses buffer cache. As a result, some of the tests that bonnie performs are meaningless, for example character I/O. --- Build it here: /usr/ports/benchmarks/rawio Still, those numbers do look strange. Can we see the output from "vinum printconfig"? Dave On Wed, 15 Mar 2000, Mark Smith wrote: > Greetings, > > Here's some Bonnie stats from my 3.4R machine. Plase read da1 and da2 > instead of sd1 and sd2. I benched the individual drives right after > installing 3.4 and was still thinking older device names. Anway, > sd1 and sd2 are the drives striped together to get testc. > > Could somebody please explain why the sequentional block output is sooo > much slower on the striped partion than the individual sd1 and sd2 > drives? > > #Bonnie -s 200 > > /disk1 /dev/sd1 > -------Sequential Output-------- ---Sequential Input-- --Random-- > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- > MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > 200 7510 93.4 8428 21.5 2856 15.8 7485 93.2 11164 27.4 227.0 6.3 > > /disk2 /dev/sd2 > -------Sequential Output-------- ---Sequential Input-- --Random-- > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- > MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > 200 7546 92.4 8403 21.6 2871 15.9 7512 93.0 11375 29.6 199.9 5.9 > > /testc /dev/vinum/testc > -------Sequential Output-------- ---Sequential Input-- --Random-- > -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks--- > MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU > 200 7881 96.3 2886 25.9 5765 31.7 6297 77.0 16289 46.5 315.8 9.6 > -- > Thanks! > Mark To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message