RE: [Xen-devel] Page Sharing

[Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>]

> From: ash win [mailto:ash_win012006@xxxxxxxxx]
> Sent: Sunday, September 12, 2010 12:01 AM
> To: tmem-devel@xxxxxxxxxxxxxx
> Cc: Xen-devel@xxxxxxxxxxxxxxxxxxx; tmem-devel@xxxxxxxxxxxxxx; Kurt
> Hackel; v.tolstov@xxxxxxxxx; Dave Mccracken; Chris Mason
> Subject: [Xen-devel] Page Sharing
> 
> In tmem only ephemeral pages are shared.Why does persistent pages are
> not shared?

I think I answered your question here (though I see you are
using a different email address?)

http://lists.xensource.com/archives/html/xen-devel/2010-08/msg01965.html 

> not shared? Does this shared pages include both code and data segment
> for x86 architecture.

I think you are confusing tmem with transparent page sharing.  They have
similar objectives but are very different.

> How is the sharing done in other architecture.?

Tmem deduplication is architecture-independent.


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