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xen-devel
Re: [Xen-devel] Page sharing in Xen?
Keir Fraser wrote:
On 12 Jul 2006, at 03:38, Jae-Wan Jang wrote:
I want to know whether Xen shares pages between domains or not.
When I read "Memory Resource Management in VMware ESX server",
they use page sharing between domains with hash value of a page.
So I wonder that Xen uses this technique
or if not, is there anyone who is implementing this to Xen now or
willing to do so.
There is explicit page sharing in Xen, but the kind of automatic scheme
described in that paper. This is largely because it's unclear how great
the benefit would be in practice.
Page coalescing is a frequently requested feature, not just for Xen/x86
but for other platforms/Hypervisors. It would be good if we can
incorporate it into Xen.
Mike
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