Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965082AbWHWTnR (ORCPT ); Wed, 23 Aug 2006 15:43:17 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965104AbWHWTnR (ORCPT ); Wed, 23 Aug 2006 15:43:17 -0400 Received: from main.gmane.org ([80.91.229.2]:11934 "EHLO ciao.gmane.org") by vger.kernel.org with ESMTP id S965082AbWHWTnQ (ORCPT ); Wed, 23 Aug 2006 15:43:16 -0400 X-Injected-Via-Gmane: http://gmane.org/ To: linux-kernel@vger.kernel.org From: "Mario 'BitKoenig' Holbe" Subject: Re: Hardware vs. Software Raid Speed Date: Wed, 23 Aug 2006 21:42:10 +0200 Organization: Technische Universitaet Ilmenau, Germany Message-ID: References: <44EBFB3E.8070905@perkel.com> <44EC02FD.7050207@tomt.net> <44EC94A9.4010903@gmail.com> X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: p54b8ab55.dip0.t-ipconnect.de User-Agent: slrn/0.9.8.1pl1 (Debian) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 795 Lines: 15 Tejun Heo wrote: > And, yeah, they're all software RAID. Also, there isn't much to be > gained from making RAID0/1 hardware. The software overhead isn't that The CPU cycles in fact don't usually matter. The I/O overhead (on the PCI bus) due to multiple transfers of the (more or less) same data is typically more interesting. regards Mario -- The secret that the NSA could read the Iranian secrets was more important than any specific Iranian secrets that the NSA could read. -- Bruce Schneier - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/