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From: JR <botemout@gmail.com>
To: kvm@vger.kernel.org
Subject: Poor performance with virtio network driver on windows 2008 R2 on KVM
Date: Wed, 14 May 2014 11:37:25 -0400	[thread overview]
Message-ID: <53738DB5.2050006@gmail.com> (raw)

Greetings all,

Though I don't believe that this is KVM problem per se, I'm seeing very
poor network performance when using windows 2008R2 KVM instances with
the virtio driver when on a 10G network.  iperf results show linux VMs
getting close to wire speeds, while windows only does about 1.3Gb/sec.

I've tried a number of tcp settings (chimney, etc...) as recommended by
some google searches but nothing has helped.

Does anyone have any advice?

Thanks much,
JR


-- 
Your electronic communications are being monitored; strong encryption is
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             reply	other threads:[~2014-05-14 15:37 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-14 15:37 JR [this message]
2014-05-15  4:49 ` Poor performance with virtio network driver on windows 2008 R2 on KVM Venkateswara Rao Nandigam
2014-05-15 17:41   ` Venkateswara Rao Nandigam
2014-05-15 18:03     ` JR
2014-05-15 18:07       ` Venkateswara Rao Nandigam
2014-05-15 17:59   ` JR
2014-05-15 17:27 ` Peter Kieser
2014-05-15 18:01   ` JR
2014-06-30  3:00     ` Peter Kieser

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