From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stefan Hajnoczi <stefanha@gmail.com>
Subject: Re: performance of virtual functions compared to virtio
Date: Thu, 21 Apr 2011 13:31:10 +0100
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Cc: Alex Williamson <alex.williamson@redhat.com>,
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To: Avi Kivity <avi@redhat.com>
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On Thu, Apr 21, 2011 at 9:07 AM, Avi Kivity <avi@redhat.com> wrote:
> Note I think in both cases we can make significant improvements:
> - for VFs, steer device interrupts to the cpus which run the vcpus that will
> receive the interrupts eventually (ISTR some work about this, but not sure)
> - for virtio, use a DMA engine to copy data (I think there exists code in
> upstream which does this, but has this been enabled/tuned?)

Which data copy in virtio?  Is this a vhost-net specific thing you're
thinking about?

Stefan