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,
Thinking twice about this, shouldn't we just move to a simplified model:
-drive file=foo.img,cache=[on|off],hd0 -device
virtio-blk-pci,drive=hd0,wce=1
As long as we advertise wce and wce can be toggled from the guest, I
don't think the default is all that important. I think cache=on is the
right default for most common use cases.
Regards,
Anthony Liguori
