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[Xen-ia64-devel] VP/P2M: domain_page_flush

To: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>, xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
From: Tristan Gingold <Tristan.Gingold@xxxxxxxx>
Date: Wed, 26 Apr 2006 11:09:35 +0200
Delivery-date: Wed, 26 Apr 2006 02:05:39 -0700
List-id: Discussion of the ia64 port of Xen <xen-ia64-devel.lists.xensource.com>

Hi,

as you noticed domain_page_flush is a big hammer and may seriously impact 
performance.  I suppose that's a reason why VHPT size is reduced.

It would be really better to only purge by range (like vcpu_ptc_ga).
But can the mapping addresses be easily known ?

What do you think about this issue ?

Tristan.





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