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xen-devel
Re: [Xen-devel] Page sharing in Xen?
Hi,
there is actually an implementation, as we spent the last couple of
semesters doing this for the purpose of evaluation content-based page
sharing as our master thesis. Our implementation works very similar to
that of VMware and is built upon the Potemkin framework.
Furthermore we are working on an article to sum up the results.
the code:
http://www.cs.aau.dk/~mejlholm/dat6/cbps/
the thesis:
http://www.cs.aau.dk/library/cgi-bin/detail.cgi?id=1150283144
For information feel free to write us directly :)
Best Regards,
Arne Mejlholm,
Jesper Kristensen and
Jacob Faber Kloster
On Wed, 12 Jul 2006, 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.
-- Keir
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