[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] 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@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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