Indeed, as Gregory well mentioned, PGO is unrelated to a particular CPU on 
which we do profiling.

From: Python-Dev 
[mailto:python-dev-bounces+alecsandru.patrascu=intel....@python.org] On Behalf 
Of Gregory P. Smith
Sent: Tuesday, August 25, 2015 7:44 PM
To: Xavier Combelle; python-dev@python.org
Subject: Re: [Python-Dev] Profile Guided Optimization active by-default

PGO is unrelated to the particular CPU the profiling is done on. (It is 
conceivable that it'd make a small difference but I've never observed that in 
practice)
On Tue, Aug 25, 2015, 9:28 AM Xavier Combelle <xavier.combe...@gmail.com> wrote:
Pardon me if I'm not in the right place to ask the following naive question. 
(say me if it's the case)
Does Profile Guided Optimization performance improvements are specific to the 
chip where the built is done or the performance is better on a larger set of 
chips?


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