[CentOS-virt] Patch for domU packet loss

Sun Dec 15 18:02:00 UTC 2013
Vasily Evseenko <svpcom at gmail.com>


I've found that dom0 <-> domU begin loss ~ 20% packets on high UDP
traffic (with bridged virtual network setup).
The fix is to increase txqueuelen on vif* interfaces which is very low
(32) by default.
Tested with Centos 6.5, 3.10.23-11.el6.centos.alt.x86_64

P.S. This problem widely discussed in the internet, but nobody publish
this fix (why?)


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