Re: [Qemu-devel] [RFC] block-trace Low Level Command Supporting Disk Introspection

[Wolfgang Richter]

On Wed, May 15, 2013 at 7:54 AM, Paolo Bonzini <address@hidden> 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