From owner-freebsd-geom@FreeBSD.ORG Wed Mar 28 13:46:01 2007 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 9DBF116A403 for ; Wed, 28 Mar 2007 13:46:01 +0000 (UTC) (envelope-from matyee@mail.alba.hu) Received: from mta01.mail.t-online.hu (mta01.mail.t-online.hu [195.228.240.50]) by mx1.freebsd.org (Postfix) with ESMTP id 612C713C448 for ; Wed, 28 Mar 2007 13:46:01 +0000 (UTC) (envelope-from matyee@mail.alba.hu) Received: from peteruj (dsl51B6FBF9.fixip.t-online.hu [81.182.251.249]) by mail.axelero.hu (Postfix) with SMTP id 87E9F33C1D4 for ; Wed, 28 Mar 2007 15:46:00 +0200 (CEST) Message-ID: <009601c7713f$6b9f2a60$6502a8c0@peteruj> From: =?iso-8859-1?B?U3phYvMgUOl0ZXI=?= To: References: <657228.54534.qm@web30313.mail.mud.yahoo.com> Date: Wed, 28 Mar 2007 15:46:00 +0200 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Subject: Re: raid3 is slow X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Mar 2007 13:46:01 -0000 > And what if u try this: > dd if=/dev/raid3/... of=/dev/null bs=1m count=128 > ? #dd if=/dev/raid3/nmivol of=/dev/null bs=1m count=128 128+0 records in 128+0 records out 134217728 bytes transferred in 1.555843 secs (86266891 bytes/sec) > 8KB/transfer is a little low for my taste... Looks like ur copy program > uses > 32KB transfers, instead of 128KB transfers... > What if u try > dd if=/source-file/on/raid3-device of=/dev/null bs=1m count=128 > ? dd if=/mnt/vol/site/video/Sissi_2-3/SISSI_2.ISO of=/dev/null bs=1m count=128 128+0 records in 128+0 records out 134217728 bytes transferred in 6.096775 secs (22014545 bytes/sec) > -Arne Matyee ____________________________________________________________________________________ Don't pick lemons. See all the new 2007 cars at Yahoo! Autos. http://autos.yahoo.com/new_cars.html _______________________________________________ freebsd-geom@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-geom To unsubscribe, send any mail to "freebsd-geom-unsubscribe@freebsd.org"