From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
To: "Paweł Staszewski" <pstaszewski@itcare.pl>
Cc: Linux PM list <linux-pm@vger.kernel.org>, linux-acpi@vger.kernel.org
Subject: Re: Intel Xeon 5649 2.53GHz Turbo problem
Date: Mon, 14 Nov 2011 01:29:28 -0200 [thread overview]
Message-ID: <20111114032928.GA2360@khazad-dum.debian.net> (raw)
In-Reply-To: <4EC02231.9030501@itcare.pl>
On Sun, 13 Nov 2011, Paweł Staszewski wrote:
> How can I check if Turbo Boost is working with Xeon E5649
>
> I have turbostats that shows:
> pk cr CPU %c0 GHz TSC %c1 %c3 %c6 %pc3 %pc6
> 56.12 2.67 2.53 43.88 0.00 0.00 0.00 0.00
^^^^
It is working.
> So 2.67Ghz - but based on Intel spec max Turbo freq. for this cpu is 2.93Ghz
You have too many cores active. You'll have to quiesce 4 cores into C6
to get 2.93GHz[1] out of the remaining 2 cores in the package.
[1]
http://www.intel.de/content/dam/doc/specification-update/xeon-5600-specification-update.pdf
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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prev parent reply other threads:[~2011-11-14 3:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-13 20:01 Intel Xeon 5649 2.53GHz Turbo problem Paweł Staszewski
2011-11-14 3:29 ` Henrique de Moraes Holschuh [this message]
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