From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Scobie Subject: Re: Benchmarks: Linux Kernel RAID vs a Hardware RAID setup Date: Wed, 16 Jul 2008 17:18:46 +1200 Message-ID: <487D84B6.60908@sauce.co.nz> References: <1216130769.5633.318.camel@sam.localdomain> <20080715163932.GA23164@rap.rap.dk> <8CAB4B2168C7183-B68-AD2@webmail-ng19.sysops.aol.com> <20080715173927.GA24745@rap.rap.dk> <487D3A44.7000008@sauce.co.nz> <20080716042336.GB7148@rap.rap.dk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20080716042336.GB7148@rap.rap.dk> Sender: linux-raid-owner@vger.kernel.org To: =?ISO-8859-1?Q?Keld_J=F8rn_Simonsen?= Cc: Linux RAID Mailing List List-Id: linux-raid.ids Keld J=F8rn Simonsen wrote: > My understanding tho, is that the IO output and input figures are on > sequential IO. There are no figures on random IO, If you look at some results Justin posted: http://home.comcast.net/~jpiszcz/20080707/veliciraptors_with_x4.html The column "Random Create" shows performance for randomly creating,=20 reading and deleting 16384 files sized between 16bytes and 1MB=20 distributed randomly through 64 directories (this is the -n parameter=20 and is shown in the "Num Files" column.) Regards, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html