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Gmane
From: Ingo Molnar <mingo-X9Un+BFzKDI <at> public.gmane.org>
Subject: [announce] KVM/NET, paravirtual network device
Newsgroups: gmane.comp.emulators.kvm.devel
Date: Thursday 11th January 2007 00:10:11 UTC (over 10 years ago)
here's a quick update wrt. the KVM paravirtualization work: i'm 
currently working on KVM/NET, which is a Linux<->Linux virtual network 
device driver between the KVM host and the KVM guest. It uses the new 
KVM-paravirtualization infrastructure that i've sent to this list 
yesterday.

while the code is still a prototype, it's working already and here are 
some early TCP bandwidth (bw_tcp from guest to host) performance results 
which i'm sure you'll enjoy:

  -----------------------------------------------------------
  | Native via loopback (mtu=1500)         :  235.57 MB/sec |
  | Native via loopback (mtu=4000)         :  487.12 MB/sec |
  -----------------------------------------------------------
  | Qemu via RTL-8029 emulation            :    2.84 MB/sec |
  | KVM via RTL-8029 emulation             :    7.41 MB/sec |
  -----------------------------------------------------------
  | KVM-para via KVM/NET device (mtu=1500) :  303.35 MB/sec |
  | KVM-para via KVM/NET device (mtu=4000) :  389.47 MB/sec |
  -----------------------------------------------------------

	Ingo

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