Re: [Xen-devel] schedulers and topology exposing questions

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Fri, 2016-01-29 at 16:59 -0500, Elena Ufimtseva wrote:
>Â
> Hey Dario
> 
> Please disregard the previous email with topology information.
> It was incorrect and I am attaching the topology that is actually
> result
> of Joao smt patches application.
> 
Ok :-)

Well, this:

...
physical idÂÂÂÂÂ: 0
siblingsÂÂÂÂÂÂÂÂ: 16
core idÂÂÂÂÂÂÂÂÂ: 0
cpu coresÂÂÂÂÂÂÂ: 8
...
physical idÂÂÂÂÂ: 0
siblingsÂÂÂÂÂÂÂÂ: 16
core idÂÂÂÂÂÂÂÂÂ: 0
cpu coresÂÂÂÂÂÂÂ: 8
...
physical idÂÂÂÂÂ: 0
siblingsÂÂÂÂÂÂÂÂ: 16
core idÂÂÂÂÂÂÂÂÂ: 1
cpu coresÂÂÂÂÂÂÂ: 8
...
[etc]

And this:

cat /proc/sys/kernel/sched_domain/cpu*/domain*/names
SMT
MC
SMT
MC
SMT
MC
SMT
MC
[etc]

Makes me think that the patch are doing their job, and that the OS is
correctly seeing a multicore, SMT-enabled topology.

Good work on that! ;-)

Thanks and Regards,
Dario
-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
-----------------------------------------------------------------
Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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