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Re: [Xen-devel] [Patch 2 of 2]: PV-domain SMP performance Linux-part

On 19/12/2008 08:12, "Juergen Gross" <juergen.gross@xxxxxxxxxxxxxxxxxxx>

>> Ah, yes, I recall. But then why don't you use that macro? After all,
>> hypercall.h
>> must have been included if you're able to call HYPERVISOR_sched_op().
> This was an artefact from previous tests, sorry.
> Attached patch should be clean now.
> Keir, what is your main objection?
> Putting this interface into the hypervisor or only the Linux part?
> I still think this would be good to have in linux, but our BS2000 port would
> really be much easier having this interface in the hypervisor!
> So if you don't mind adding only the first patch, this would be absolutely
> okay for us.

I haven't seen any win on any real world setup. So I remain unconvinced, and
it'll need more than you alone championing the patch to get it in. There
have been no other general comments so far (Jan's have been about specific

 -- Keir

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