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Bug#712062: Please enable X86_INTEL_PSTATE (P state power scaling driver)



On 15/06/13 04:55, Ben Hutchings wrote:
> On Wed, 2013-06-12 at 19:20 +0200, Carlos Alberto Lopez Perez wrote:
>> Source: linux
>> Version: 3.9.5-1
>> Severity: wishlist
>>
>>
>> Please consider enabling X86_INTEL_PSTATE on 3.9 or superior
>>
>> This is a new CPU power scaling driver specially optimized for the
>> latest Intel CPUs (Sandy Bridge and Ivy Bridge)
>>
>> https://lwn.net/Articles/536017/
> 
> I don't think it's ready yet.  I'll enable it in experimental though.
> 
> Ben.

I agree. I have seen significant performance reductions on my Xeon
E3-1200 server with X86_INTEL_PSTATE enabled, though I admit I don't
have any figures to back this up.

HTH,
Chris

-- 
Chris Boot
debian@bootc.net
GPG: 1DE8 6AB0 1897 A330 D973  D77C 50DD 5A29 FB09 9999

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