All of lore.kernel.org
 help / color / mirror / Atom feed
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
an answer. My public key
<http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4F08C504BD634953>

             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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=53738DB5.2050006@gmail.com \
    --to=botemout@gmail.com \
    --cc=kvm@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.