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From: Jason Baron <jbaron@akamai.com>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: "rafael.j.wysocki@intel.com" <rafael.j.wysocki@intel.com>,
	"durgadoss.r@intel.com" <durgadoss.r@intel.com>,
	"srivatsa.bhat@linux.vnet.ibm.com"
	<srivatsa.bhat@linux.vnet.ibm.com>,
	"srinivas.pandruvada@linux.intel.com" 
	<srinivas.pandruvada@linux.intel.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] powercap/rapl: add support for cpu model 0x3f
Date: Thu, 14 Aug 2014 10:21:22 -0400	[thread overview]
Message-ID: <53ECC5E2.5080903@akamai.com> (raw)
In-Reply-To: <20140813155035.2af00ef5@ultegra>

On 08/13/2014 06:50 PM, Jacob Pan wrote:
> On Wed, 13 Aug 2014 20:33:26 +0000 (GMT)
> Jason Baron <jbaron@akamai.com> wrote:
> 
>> I've confirmed that monitoring the package power usage as well
>> as setting power limits appear to be working as expected. However,
>> I do see in the logs:
>>
>> [    5.082632] intel_rapl: RAPL domain core detection failed
>> [    5.088370] intel_rapl: RAPL domain uncore detection failed
>>
>> So I'm not sure if the h/w simply doesn't support that, or if the
>> driver could be improved here. In any case, adding the 0x3f makes
>> the driver useful for me. Tested aginst cpu:
>>
>> Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz
>>
> I don't have this CPU model to test. Most server processors don't
> have uncore domain so detection failed is normal. Looks like you just
> have package and dram domain?

Yes.

> Thanks for testing it out, looks good to me. can you send it to
> linux-pm list and cc rafael?
> 

Ok.

Thanks,

-Jason


      reply	other threads:[~2014-08-14 14:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-13 20:33 [PATCH] powercap/rapl: add support for cpu model 0x3f Jason Baron
2014-08-13 22:50 ` Jacob Pan
2014-08-14 14:21   ` Jason Baron [this message]

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