From: Asdo <asdo@shiftmail.org>
To: jean-philippe.menil@univ-nantes.fr
Cc: Onkar Mahajan <kern.devel@gmail.com>, kvm@vger.kernel.org
Subject: Re: Test vhost-net !!
Date: Sat, 09 Apr 2011 16:25:40 +0200 [thread overview]
Message-ID: <4DA06C64.4010709@shiftmail.org> (raw)
In-Reply-To: <4D9D68E7.2010206@univ-nantes.fr>
On 04/07/2011 09:33 AM, Jean-Philippe Menil wrote:
> Le 07/04/2011 09:18, Onkar Mahajan a écrit :
>> Hi ,
>> How do I test if vhost-net is actually enabled and working ? Hi,
>> ...
>
> you must modprobe the vhost_net module on your host:
> ...
> and you need to pass "vhost-on" on your command line:
> http://www.linux-kvm.org/page/VhostNet
> ...
> Regards.
>
Are you really able to make vhost_net work?
I compiled from source KVM 0.13.0 and recently also 0.14.0 on intel xeon
54xx and 56xx, on newly installed Ubuntu with vanilla kernel 2.6.37, and
when I tried to enable vhost_net (modprobe the module then restart KVM)
the emulation was going 100x slower than normal, so I had to disable it.
See my old message in this ML "vhost disables kvm acceleration"
What did you do to make it work? Did you compile KVM from sources? On
what kernel? AMD or Intel?
Also, are you not using libvirt maybe?
Thank you
next prev parent reply other threads:[~2011-04-09 14:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-07 7:18 Test vhost-net !! Onkar Mahajan
2011-04-07 7:33 ` Jean-Philippe Menil
2011-04-09 14:25 ` Asdo [this message]
2011-04-09 16:28 ` Jean-Philippe Menil
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