linux-kernel - CPU clock throttled prints..

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Message-ID: <D6D887BA8C9DFF48B5233887EF04654109E855E9B4@bgsmsx502.gar.corp.intel.com>
Date:	Tue, 5 Jul 2011 11:06:42 +0530
From:	"R, Durgadoss" <durgadoss.r@...el.com>
To:	"linux-x86_64@...r.kernel.org" <linux-x86_64@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	"R, Durgadoss" <durgadoss.r@...el.com>
Subject: CPU clock throttled prints..

Hi All,

I am getting these prints in my Atom based device, running 2.6.35 kernel.

[  350.084005] CPU0: Temperature above threshold, cpu clock throttled (total
events = 26)
[  350.084029] CPU1: Temperature above threshold, cpu clock throttled (total
events = 26)
[  350.085293] CPU0: Temperature/speed normal
[  350.085311] CPU1: Temperature/speed normal

Seems like these are from therm_throt.c and the flow for this,
Starts from smp_thermal_interrupt(...) method.

Can somebody tell me when this method gets called ?
Also, does this actually throttle the CPU ?

Thanks,
Durga
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