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RE: [Xen-users] strange network problems

  • To: "jon.hart" <jon.hart@xxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
  • Date: Thu, 16 Apr 2009 21:24:17 +1000
  • Cc:
  • Delivery-date: Thu, 16 Apr 2009 04:25:14 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: Acm+g6aGVdcd1uDwSp6/VEyMe6Zx4AAAizfQ
  • Thread-topic: [Xen-users] strange network problems
> 
> Hi,
> 
> with xen paravirt_ops (xen 3.4.0 rc2-pre / 2.6.29-tip) I noticed very
> bad ethernet throughput. A bit strange - if the traffic goes through an
> ipsec tunnel all works as expected.
> 
> What can I do to improve network performance?
> 

Easiest thing to try first is to turn off all network offloading (ethtool)

James

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