Re: [PATCH 0/9][RFC] KVM virtio_net performance

Herbert Xu
2008-07-24T11:55:08Z

On Thu, Jul 24, 2008 at 12:46:10PM +0100, Mark McLoughlin wrote:
> Here's a bunch of patches attempting to improve the performance
> of virtio_net. This is more an RFC rather than a patch submission
> since, as can be seen below, not all patches actually improve the
> perfomance measurably.

Nice patches Mark, your work is always of the highest calibre!

> 2) Using the recently merged GSO support in the tun/tap driver gives
> a huge boost, but much more so on the host->guest side.

IIRC the reason guest=>host isn't so good is because the tuntap
GSO interface isn't the best when it comes to getting data from
user-space.

Thanks,
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