From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <aliguori@us.ibm.com>
Subject: Re: Essay on an important Xen decision (long)
Date: Wed, 11 Jan 2006 11:38:25 -0600
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To: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk>
Cc: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@hp.com>, xen-devel@lists.xensource.com, Mark Williamson <mark.williamson@cl.cam.ac.uk>
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Ian Pratt wrote:

>Hint: you need to be propagate dirty and accessed bits back to the guest
>pagetable.  
>  
>
Ahh, I see now.  Thanks :-)

Regards,

Anthony Liguori

>>Of course, I guess it wouldn't be that much of a shock to me 
>>that the overhead is at least measurable...
>>    
>>
>
>It's certainly measureable, and certainly dominates the virtualization
>overhead of some workloads. 
>
>
>Ian
>
>  
>