Quoting Kent Fritz <[email protected]>:
Hopefully this is not too bad advice...
I've found the performance with cache=none to be unacceptable as well.
I'm using cache=writeback. Of course you'll get much better
performance if you remove Linux/KVM. :)
It might be the case for OpenBSD/i386, but in general cache=writeback
is discouraged because you get double caching (guest OS and host OS),
performance is usually better with direct access, and it might not be
desirable that the guest OS behaves like data has been written into
disk when in reality the data is still lingering in the host OS cache.
--
Best regards,
Jorge Lopez.
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