[Tmem-devel] [Xen-devel] Page Sharing

[Dan Magenheimer]

> From: ash win [mailto:ash_win012006 at yahoo.com]
> Sent: Sunday, September 12, 2010 12:01 AM
> To: tmem-devel at oss.oracle.com
> Cc: Xen-devel at lists.xensource.com; tmem-devel at oss.oracle.com; Kurt
> Hackel; v.tolstov at selfip.ru; 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.