From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 4 Feb 2005 08:23:59 -0700 From: "Ronald G. Minnich" To: 9fans@cse.psu.edu Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: [9fans] Re: [Xen-devel] performance problems (fwd) Topicbox-Message-UUID: 3eb3df66-eace-11e9-9e20-41e7f4b1d025 I am sending this as the data is interesting for plan 9 vmware vs. plan 9 xen. Which is to say, I sure would like some people to try xen and plan 9: - free - faster - xen will soon be standard part of linux --> setup will be easy ron ---------- Forwarded message ---------- Date: Fri, 4 Feb 2005 10:04:23 +0100 From: Henning Glawe To: xen-devel@lists.sourceforge.net Subject: Re: [Xen-devel] performance problems On Wed, Jan 19, 2005 at 09:02:02PM -0000, Ian Pratt wrote: > > I think you're going to have to do a few IO microbenchmarks such as ttcp > and dd to figure out what's going slow on your system -- something is > badly wrong. Are you sure the same hardware drivers are being used in > both cases? yup. the only difference was that I didn't touch dumU's kernel config; in dom0 I already disabled the debugging flags (except magic sysreq), but in default domU's config they were still enabled. Overall impression from my newer benchmark experiments: - Harddisk IO is about 30% faster in XenU than in vmware ws (both accessing the same raw partition) - Network IO is at the same level in xenU and vmware, which is about 30% slower than dom0/native net io (netpipe, 2 machines using 1000Mbit ethernet connected via a switch, xenU and vmware bridged). -- c u henning ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Xen-devel mailing list Xen-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xen-devel