From: Andy Furniss <adf.lists@gmail.com>
To: lartc@vger.kernel.org
Subject: Re: Poor performance of ingress filter for separate VMs
Date: Sat, 11 May 2013 11:41:04 +0000 [thread overview]
Message-ID: <518E2E50.2030905@gmail.com> (raw)
In-Reply-To: <000f01ce4c17$76dfa490$649eedb0$@JAMMConsulting.com>
Neil Aggarwal wrote:
> Andy:
>
>> Ahh, tso will also need to be turned off if you want to see normal/real
>> sized packets.
>
> I tried this:
> ethtool -K v1262 tso off
>
> I get back this reponse:
> Cannot set device tcp segmentation offload settings: Operation not supported
>
> I guess I can't change the settings for a virtual device.
Strange, maybe a KVM/whatever virtual driver issue - I guess there are
places you can ask.
FWIW I just noticed lo has tso enabled and it turns off OK, so it
doesn't have to be a real nic.
next prev parent reply other threads:[~2013-05-11 11:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-08 18:11 Poor performance of ingress filter for separate VMs Neil Aggarwal
2013-05-09 10:17 ` Andy Furniss
2013-05-09 11:00 ` Andy Furniss
2013-05-10 16:45 ` Neil Aggarwal
2013-05-10 20:37 ` Andy Furniss
2013-05-10 23:40 ` Neil Aggarwal
2013-05-11 11:41 ` Andy Furniss [this message]
2013-05-11 14:59 ` Neil Aggarwal
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