linux-kernel - Re: [PATCH] powercap/rapl: add support for cpu model 0x3f

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Date:	Thu, 14 Aug 2014 10:21:22 -0400
From:	Jason Baron <jbaron@...mai.com>
To:	Jacob Pan <jacob.jun.pan@...ux.intel.com>
CC:	"rafael.j.wysocki@...el.com" <rafael.j.wysocki@...el.com>,
	"durgadoss.r@...el.com" <durgadoss.r@...el.com>,
	"srivatsa.bhat@...ux.vnet.ibm.com" <srivatsa.bhat@...ux.vnet.ibm.com>,
	"srinivas.pandruvada@...ux.intel.com" 
	<srinivas.pandruvada@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] powercap/rapl: add support for cpu model 0x3f

On 08/13/2014 06:50 PM, Jacob Pan wrote:
> On Wed, 13 Aug 2014 20:33:26 +0000 (GMT)
> Jason Baron <jbaron@...mai.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

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