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Groups > linux.kernel > #1442404
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: Odd performance results |
| Date | 2016-07-13 14:40 +0200 |
| Message-ID | <rUrCj-34n-29@gated-at.bofh.it> (permalink) |
| References | (4 earlier) <rU7tU-6CN-19@gated-at.bofh.it> <rUa8q-8da-19@gated-at.bofh.it> <rUb4t-o7-7@gated-at.bofh.it> <rUmCC-8ei-29@gated-at.bofh.it> <rUrCi-34n-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Jul 13, 2016 at 09:27:48AM -0300, Henrique de Moraes Holschuh wrote:
> On Wed, 13 Jul 2016, Ingo Molnar wrote:
> > > The ordering Paul has, namely 0,1 for core0,smt{0,1} is not something
> > > I've ever seen on an Intel part. AMD otoh does enumerate their CMT stuff
> > > like what Paul has.
> >
> > That's more the natural 'direct' mapping from CPU internal topology to CPU id:
> > what's close to each other physically is close to each other in the CPU id space
> > as well.
>
> But does it correctly reflect the hardware? That seems to be the real
> question...
Its just enumeration afaict. But its weird that this changed. Some BIOS
team somewhere changed things and I want to know why (and how widespread
this is).
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Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-10 06:30 +0200
Re: Odd performance results Peter Zijlstra <peterz@infradead.org> - 2016-07-10 07:20 +0200
Re: Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-10 16:50 +0200
Re: Odd performance results Peter Zijlstra <peterz@infradead.org> - 2016-07-12 17:00 +0200
Re: Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-12 17:10 +0200
Re: Odd performance results "H. Peter Anvin" <hpa@zytor.com> - 2016-07-12 20:00 +0200
Re: Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-12 20:30 +0200
Re: Odd performance results Peter Zijlstra <peterz@infradead.org> - 2016-07-12 21:00 +0200
Re: [CRM114spam]: Re: Odd performance results "Dr. David Alan Gilbert" <dave@treblig.org> - 2016-07-12 21:40 +0200
Re: [CRM114spam]: Re: Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-12 22:10 +0200
Re: [CRM114spam]: Re: Odd performance results Ingo Molnar <mingo@kernel.org> - 2016-07-13 09:30 +0200
Re: Odd performance results Ingo Molnar <mingo@kernel.org> - 2016-07-13 09:20 +0200
Re: Odd performance results Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-07-13 14:40 +0200
Re: Odd performance results Peter Zijlstra <peterz@infradead.org> - 2016-07-13 14:40 +0200
Re: Odd performance results "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> - 2016-07-13 16:10 +0200
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