Xen devel - Sep 2011 - proposing an idea for my last year project

Sir,
  I have an idea for improving memory management of xen.I don''t know
whether
it is implemented or not.
   There are many operating systems running on a VMM.So it may be the case
that two or more OS are of same flavor e.g.(windows or Linux).so some
components of these OSes can be shared among various domains.
  Idea is that if any page i know can be shared between domains and is
already present in memory then same page is used rather than bringing it
from hard disk.I read memory merging but they are bringing page in memory
and then deciding the page duplication.
 I want to know whether above idea can be implemented or not


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google "Difference Engine Harnessing Memory Redundancy in Virtual 
Machines".

hope this help.

-Superymk

On 9/18/2011 10:40 PM, Pratik shinde wrote:
> Sir,
>   I have an idea for improving memory management of xen.I don''t
know
> whether it is implemented or not.
>    There are many operating systems running on a VMM.So it may be the 
> case that two or more OS are of same flavor e.g.(windows or Linux).so 
> some components of these OSes can be shared among various domains.
>   Idea is that if any page i know can be shared between domains and is 
> already present in memory then same page is used rather than bringing 
> it from hard disk.I read memory merging but they are bringing page in 
> memory and then deciding the page duplication.
>  I want to know whether above idea can be implemented or not
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel


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At 07:40 -0700 on 18 Sep (1316331619), Pratik shinde
wrote:
>   Idea is that if any page i know can be shared between domains and is
> already present in memory then same page is used rather than bringing it
> from hard disk.I read memory merging but they are bringing page in memory
> and then deciding the page duplication.
>  I want to know whether above idea can be implemented or not
It has been implemented at least twice.  Here''s a paper about it:
http://www.usenix.org/event/usenix09/tech/full_papers/milos/milos_html/index.html

Cheers,

Tim.

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