On Wed, May 15, 2013 at 7:54 AM, Paolo Bonzini <pbonz...@redhat.com> wrote:

> > But does this really cover all use cases a real synchronous active
> > mirror would provide? I understood that Wolf wants to get every single
> > guest request exposed e.g. on an NBD connection.
>
> He can use throttling to limit the guest's I/O speed to the size of the
> asynchronous mirror's buffer.
>

Throttling is fine for me, and actually what I do today (this is the
highest source of
overhead for a system that wants to see everything), just with the tracing
framework.

-- 
Wolf

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