From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nivedita Singhvi Subject: Re: MPI benchmark performance gap between native linux and domU Date: Mon, 04 Apr 2005 16:37:08 -0700 Message-ID: <4251CFA4.1060802@us.ibm.com> References: <4251CB53.3040602@cs.uchicago.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4251CB53.3040602@cs.uchicago.edu> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xuehai zhang Cc: Xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org xuehai zhang wrote: > Experiment 1: I boot all 8 nodes with native linux (nosmp, kernel > 2.4.29) and use all > Experiment 2: I boot all 8 nodes with Xen running and start a single > user domain > (port 2.6.10,using file-backed VBD) on each node with 360MB memory. Then What do you get when you compare 2.4.29 native Linux against 2.6.10 native Linux, without Xen involved at all? thanks, Nivedita