Re: [Qemu-devel] [POC]colo-proxy in qemu

[Jason Wang]

On 11/11/2015 09:23 AM, Dong, Eddie wrote:
>> - What's the plan for vhost? Userspace network in qemu is rather slow, most
>> user will choose vhost.
> [Dong, Eddie] Hi Jason:
>       How about we take staging approach? In general, COLO opens a door of 
> high performance HA solution, but it will take very long time to make 
> everything perfect. As for the network virtualization, I think we may start 
> from usage with moderate network bandwidth, like 1Gbps. Otherwise, the 
> performance of COLO may be not that good (of course, like David mentioned, 
> the worst case is same with periodic checkpoint). At the moment, how about we 
> start from in Qemu virtio network, and enhance for vhost case in future? 

Yes, of course and it makes sense.

Mentioning vhost here is to avoid re-inventing or abandoning some exist
infrastructures. For example, thinking how netfiler can work with vhost
from the beginning does not harm ...

>
>       The good thing is that we get more people working on the patch series, 
> and glad to see UMU also joined the effort.  Thanks and welcome...
>
> Thx Eddie

Thanks