On 03/07/2010 09:09 PM, Asdo wrote:
Avi Kivity wrote:
On 03/07/2010 08:01 PM, Antoine Martin wrote:
Yes cache=none: "-drive file=./vm/var_fs,if=virtio,cache=none"
Side question: this is the right thing to do for raw partitions, right?
The rightest.
Isn't cache=writeback now safe on virtio-blk since 2.6.32?
Yes.
Doesn't it provide better performances?
No. The guest will do its own caching, so unless the guest is really
short of memory, you aren't gaining much; and the copying will hurt.
Also that looks like a raw file to me, not a partition... do they
follow the same optimization "rule"?
More or less.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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