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[Xen-devel] Poor network performance in domU in unstable
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Poor network performance in domU in unstable |
| From: | Jacob Gorm Hansen <jacobg@xxxxxxx> |
| Date: | Tue, 26 Apr 2005 13:29:49 -0700 |
| Delivery-date: | Tue, 26 Apr 2005 20:30:01 +0000 |
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hi,with unstable as of April 21st, I am getting fairly bad networking performance in my domUs, e.g 125Mbits/s TCP with iPerf over a gigabit link, where dom0 gets around 700Mbits/s. This is with a non-debug build of Xen, with a bridged setup created with vmtools, and both with and without use of grant tables. If I run Xen with hyperthreading enabled, the figure improves somewhat, to 165Mbits/s in domU. Is anyone else seeing the same behaviour with unstable? Is there some magic switch I need to flip (that perhaps vmtools does not know about) to prevent domain I/O being throttled by Xen? thanks, Jacob _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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