Re: [PATCH 0/5] Add vhost-blk support

From: Stefan Hajnoczi
Date: Tue Jul 17 2012 - 08:03:53 EST

On Tue, Jul 17, 2012 at 12:54 PM, Michael S. Tsirkin <mst@xxxxxxxxxx> wrote:
>> Knowing the answer to that is important before anyone can say whether
>> this approach is good or not.
>> Stefan
> Why is it?

Because there might be a fix to kvmtool which closes the gap. It
would be embarassing if vhost-blk was pushed just because no one
looked into what is actually going on.

And on the flipside, hard evidence of an overhead that cannot be
resolved could be good reason to do more vhost devices in the future.
Either way, it's useful to do this before going further.

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