RE: Memory de-duplication

[Dan Magenheimer <dan.magenheimer@oracle.com>]

Hello Kaustubh --

I'm sorry I didn't reply to your earlier direct email.

Tmem internals documentation can be found in the Xen
source tree under docs/misc... here is the document:

http://lists.xensource.com/archives/html/xen-devel/2010-04/msg01031.html 

There is a brief discussion about page deduplication and
the data structures used to support it... other than
that and the code, there are no other details but
I would be happy to respond to specific questions.

There are also some performance results from the
last Xen Summit North America here:

http://oss.oracle.com/projects/tmem/dist/documentation/presentations/TranscendentMemoryXenSummit2010.pdf 

Note that the deduplication is performed only on pages
in tmem ephemeral pools.  If you are interested in page
sharing across all guest memory, that is a completely different
project.

Thanks,
Dan

> -----Original Message-----
> From: Kaustubh Kabra [mailto:kaustubhwise@gmail.com]
> Sent: Thursday, August 26, 2010 6:01 AM
> To: Xen-devel@lists.xensource.com
> Subject: [Xen-devel] Memory de-duplication
> 
> I have gone through the details of tmem and the patch provided by
> a group consisting Dan Magenheimer  as,
> 
> [Xen-devel] [PATCH] [xen-unstable] tmem: add page deduplication with
> opt .
> http://lists.xensource.com/archives/html/xen-devel/2010-
> 04/msg00148.html
> 
> The further details of the project as such are not available . So I
> request someone,who is aware of further development, to provide
> information about current status of the project.
> 
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