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[Xen-users] 10Gbit ethernet NIC gives slow throughput

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: fabi.a169@xxxxxxxxx
  • Date: Mon, 22 Dec 2008 17:36:40 +0100
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I would like to use a server having myricom 10gbit ethernet interfaces (driver myri10ge) for Xen. But between dom0s (no domU running), I get only a throughput of about 2.3Gbit/s (I use Xen 3.2 with the 2.6.18 kernel and debian in dom0), whether xend is running or not.  However, on linux kernel with the same version but without xen patch, I get more than 6Gbit/s. Clearly, with Xen, the CPU is not the bottleneck, beeing used at much less than 100%.

Does anybody have experiences with Xen and 10Gbit ethernet ?

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