Re: [Qemu-devel] Re: [RFC][PATCH] performance improvement for windows guests, running on top of virtio block device

[Avi Kivity]

On 01/11/2010 05:22 PM, Anthony Liguori wrote:
> Based on our experiences with virtio-net, what I'd suggest is to make 
> a lot of tunable options (ring size, various tx mitigation schemes, 
> timeout durations, etc) and then we can do some deep performance 
> studies to see how things interact with each other.
>
> I think we should do that before making any changes because I'm deeply 
> concerned that we'll introduce significant performance regressions.

I agree.  We can start with this patch, with a tunable depth, defaulting 
to current behaviour.

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