From owner-freebsd-performance@FreeBSD.ORG Wed May 6 18:54:37 2009 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 40E4D10656ED for ; Wed, 6 May 2009 18:54:37 +0000 (UTC) (envelope-from Ggatten@waddell.com) Received: from mailhost0.waddell.com (mailhost0.waddell.com [12.154.38.61]) by mx1.freebsd.org (Postfix) with ESMTP id D9C1A8FC0A for ; Wed, 6 May 2009 18:54:36 +0000 (UTC) (envelope-from Ggatten@waddell.com) Received: from mailhost3.waddell.com (mailhost3.waddell.com [10.1.10.28]) by mailhost0.waddell.com (8.13.8/8.13.8) with ESMTP id n46I9kSn013174; Wed, 6 May 2009 13:09:56 -0500 (CDT) (envelope-from Ggatten@waddell.com) Received: from mailhost3.waddell.com (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id E9C1381450; Wed, 6 May 2009 13:09:45 -0500 (CDT) Received: from wadpexf0.waddell.com (wadpexf0.waddell.com [192.168.204.24]) by mailhost3.waddell.com (Postfix) with ESMTP id D2B698144E; Wed, 6 May 2009 13:09:45 -0500 (CDT) Received: from WADPEXV0.waddell.com ([192.168.204.25]) by wadpexf0.waddell.com with Microsoft SMTPSVC(6.0.3790.3959); Wed, 6 May 2009 13:09:42 -0500 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Date: Wed, 6 May 2009 13:08:46 -0500 Message-ID: <70C0964126D66F458E688618E1CD008A0793EBD1@WADPEXV0.waddell.com> In-Reply-To: <4A01C202.8080803@seattlefenix.net> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: filesystem: 12h to delete 32GB of data Thread-Index: AcnObqfHTigM1AG/QCKN2todI36EswABn39A References: <1241610888.16418.64.camel@ompc.insign.local> <20090506084834.61600c42.wmoran@potentialtech.com> <4A01C202.8080803@seattlefenix.net> From: "Gary Gatten" To: "Benjamin Krueger" , "Wojciech Puchar" X-OriginalArrivalTime: 06 May 2009 18:09:42.0075 (UTC) FILETIME=[D40AE8B0:01C9CE75] X-Mailman-Approved-At: Wed, 06 May 2009 19:07:22 +0000 Cc: freebsd-performance@freebsd.org, Olivier Mueller , Bill Moran , freebsd-questions@freebsd.org Subject: RE: filesystem: 12h to delete 32GB of data X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 May 2009 18:54:37 -0000 It could just be me, but I swear Hardware RAID has been faster for many many years, especially with RAID5 arrays - or anything that requires parity calcs. Most of my benchmarking was done on SCO OpenServer and Novell UnixWare and Netware, but hardware RAID controllers were always faster and of course required far less host CPU resources. Raid 0/1/10/0+1/whatever arrays, I recall weren't as drastic, but I can't imagine the controller making as big a difference as the drives in the array - unless of course the drive for said controller sux!
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