From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Haigh Subject: Re: 4.2.1: Poor write performance for DomU. Date: Sun, 24 Mar 2013 20:54:58 +1100 Message-ID: <514ECD72.5000502@crc.id.au> References: <51243089.8020307@crc.id.au> <512488AC.1020702@citrix.com> <51248E23.7060408@crc.id.au> <51249C11.3050800@crc.id.au> <5139A747.80703@crc.id.au> <20130308204916.GB22146@phenom.dumpdata.com> <513A669E.4060906@crc.id.au> <20130311133017.GJ23018@phenom.dumpdata.com> <513DDE07.2090607@crc.id.au> <20130312130430.GA17901@phenom.dumpdata.com> <514EA337.7030303@crc.id.au> <514EA6B0.8010504@crc.id.au> <514EA741.7050403@crc.id.au> <514EC323.3040106@crc.id.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <514EC323.3040106@crc.id.au> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On 24/03/13 20:10, Steven Haigh wrote: > So my wonder is now... Why when put in a RAID6 do we have a 180Mb/sec+ > from the Dom0, but only 50Mb/sec from the DomU of the same filesystem... I should actually clarify that this is 180Mb/sec write speed from the Dom0 and 50Mb/sec from the DomU. Really not quite sure why this is. The filesystem in question is XFS - the tests in my previous post were on ext4. > > Any further testing that may indicate something? > -- Steven Haigh Email: netwiz@crc.id.au Web: https://www.crc.id.au Phone: (03) 9001 6090 - 0412 935 897 Fax: (03) 8338 0299