Re: [Xen-devel] Why is 'emulate' as good as writable PT's?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 6 Jun 2006, at 21:28, Andrew Theurer wrote:

> Yes, we definitely have a problem here.  Tons of flushes with 
> modified=1, and lots with <=10.  The three benchmarks all seem to hit 
> the same areas.  Here is the output from running SDET, with snippets 
> from System.map mixed in:
Is this PAE? SMP guest?

Do you know much about the SDET benchmark? For example, do you know how 
big the mprotect() calls it makes are likely to be? If vma's are small 
and fairly sparse then the writable pagetable batching won't be a win.
 -- Keir


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