Re: [PATCH 0/7] AlacrityVM guest drivers Reply-To:

From: Avi Kivity
Date: Thu Aug 06 2009 - 11:45:49 EST


On 08/06/2009 06:40 PM, Arnd Bergmann wrote:
3. The ioq method seems to be the real core of your work that makes
venet perform better than virtio-net with its virtqueues. I don't see
any reason to doubt that your claim is correct. My conclusion from
this would be to add support for ioq to virtio devices, alongside
virtqueues, but to leave out the extra bus_type and probing method.

The current conjecture is that ioq outperforms virtio because the host side of ioq is implemented in the host kernel, while the host side of virtio is implemented in userspace. AFAIK, no one pointed out differences in the protocol which explain the differences in performance.

--
error compiling committee.c: too many arguments to function

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