From owner-freebsd-stable@FreeBSD.ORG Thu Mar 8 10:49:31 2007 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 94BE416A401 for ; Thu, 8 Mar 2007 10:49:31 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 1C26C13C428 for ; Thu, 8 Mar 2007 10:49:31 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1HPGBW-0002fo-Po for freebsd-stable@freebsd.org; Thu, 08 Mar 2007 11:49:22 +0100 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 08 Mar 2007 11:49:22 +0100 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 08 Mar 2007 11:49:22 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: Ivan Voras Date: Thu, 08 Mar 2007 11:49:11 +0100 Lines: 70 Message-ID: References: <20070306020826.GA18228@nowhere> <45ECF00D.3070101@samsco.org><20070306050312.GA2437@nowhere><008101c75fcc$210c74a0$0c00a8c0@Artem> <001a01c7601d$5d635ee0$0c00a8c0@Artem> <001801c7603a$5339e020$0c00a8c0@Artem> <20070307105144.1d4a382f@daydream.goid.lan><002801c760e2$5cb5eb50$0c00a8c0@Artem> <005b01c760e6$9a798bf0$0c00a8c0@Artem> <001601c760ee$f76fa300$0c00a8c0@Artem> <45EF2215.2080402@fluffles.net> <007901c760fc$71e708a0$0c00a8c0@Artem> <45EF93E5.50804@fluffles.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig30E3ABF62547DEBAD4BF1128" X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 1.5.0.9 (X11/20070110) In-Reply-To: <45EF93E5.50804@fluffles.net> X-Enigmail-Version: 0.94.0.0 Sender: news Cc: freebsd-geom@freebsd.org Subject: Re: Some Unix benchmarks for those who are interesed X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 08 Mar 2007 10:49:31 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig30E3ABF62547DEBAD4BF1128 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Fluffles wrote: > gstripe (4 disks on nVidia controller [Embedded], 128KB stripesize, Tes= t > System 1) > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > DD benchmark(1GB) Results in MB/s avg > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > 4k READ 47.1 46.9 46.8 46.9 > WRITE 40.9 40.9 41.0 40.9 > 16k READ 92.7 92.8 92.6 92.7 > WRITE 76.3 76.1 76.2 76.2 > 64k READ 120.8 120.6 120.6 120.6 > WRITE 96.1 96.2 96.1 96.1 > 128k READ 123.0 122.8 122.8 122.8 > WRITE 96.3 96.4 96.2 96.3 > 1m READ 122.7 122.9 122.6 122.7 > WRITE 89.4 89.4 89.4 89.4 So, writing to a striped set is 37% faster than reading... > geom_raid5 with 8 SATA disks (128KB stripe, graid5-tng, Test System 2) > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > DD benchmark(1GB) Results in MB/s avg > -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- > 4k READ 58.1 58.7 59.0 58.6 > WRITE 155.5 155.8 154.3 155.2 > 16k READ 130.0 125.6 129.5 128.3 > WRITE 308.5 306.3 306.9 307.2 > 64k READ 183.8 183.9 188.9 185.5 > WRITE 416.9 416.7 415.8 416.4 > 128k READ 197.3 194.4 197.6 196.4 > WRITE 421.0 426.2 399.7 415.6 > 1m READ 193.0 196.8 198.1 195.9 > WRITE 327.6 330.3 331.0 329.6 >=20 Similar here: 69% faster, even though writing to RAID5 involves block ECC (XOR probably) calculations and writing to at least two disks, and reading doesn't. Interesting. Any ideas why? (anybody?) --------------enig30E3ABF62547DEBAD4BF1128 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.3 (FreeBSD) Comment: Using GnuPG with Thunderbird/FreeBSD - http://enigmail.mozdev.org iD8DBQFF7+onldnAQVacBcgRAo17AKDxNLugrzTtYMEZiUF/NucvxTcR2QCglwkg tJ7KMLP6zXJj0SVPtLZBYLA= =Tw7/ -----END PGP SIGNATURE----- --------------enig30E3ABF62547DEBAD4BF1128--