linux-kernel - Re: [PATCH v2 0/8] Support Intel® Turbo Boost Max Technology 3.0

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Message-ID: <20160915121430.GD13132@amd>
Date:   Thu, 15 Sep 2016 14:14:30 +0200
From:   Pavel Machek <pavel@....cz>
To:     Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Cc:     rjw@...ysocki.net, tglx@...utronix.de, mingo@...hat.com,
        bp@...e.de, peterz@...radead.org, x86@...nel.org,
        linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, tim.c.chen@...ux.intel.com
Subject: Re: [PATCH v2 0/8] Support Intel® Turbo Boost Max Technology 3.0

Hi!

> - Feature is enabled by default for single socket systems
> 
> With Intel® Turbo Boost Max Technology 3.0 (ITMT), single-threaded performance is
> optimized by identifying processor's fastest core and running critical workloads
> on it.
> Refere to:
> http://www.intel.com/content/www/us/en/architecture-and-technology/turbo-boost/turbo-boost-max-technology.html

That does not really explain much.

How does it work? Do the different cores have different max
frequencies due to manufacturing differences? Ot is it running the
workload on coldest core?

Thanks,
								Pavel


-- 
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