On 06/29/2011 06:59 AM, Kevin Wolf wrote:
Hi,
I think we have touched this topic before during some IRC discussions or
somewhere deep in a mailing list thread, but I think it hasn't been
discussed on the list.
Our default cache mode of cache=writethrough is extremely conservative
and provides absolute safety at the cost of performance,
But for the most part, we track bare metal fairly well in terms of block
performance, no?
Or are you really referring to qcow2 as a specific example? In the
past, we used a different default caching mode for qcow2. I think that
could be done again if there was a compelling reason.
Regards,
Anthony Liguori
