Re: [PATCH 0/2] reclocking stability improvements

From: Nigel Cunningham <nigel-jrkICu/7yk3k1uMJSBkQmQ@public.gmane.org>
To: Martin Peres <martin.peres-GANU6spQydw@public.gmane.org>
Cc: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: Re: [PATCH 0/2] reclocking stability improvements
Date: Fri, 29 Apr 2011 17:07:49 +1000	[thread overview]
Message-ID: <4DBA63C5.7020306@tuxonice.net> (raw)
In-Reply-To: <4DBA60B6.2060905-GANU6spQydw@public.gmane.org>

Hi.

On 29/04/11 16:54, Martin Peres wrote:
> Le 29/04/2011 02:56, Nigel Cunningham a écrit :
>> Hi.
>>
>> On 29/04/11 04:35, Martin Peres wrote:
>>> Le 28/04/2011 20:29, Maxim Levitsky a écrit :
>>>> On Thu, 2011-04-28 at 20:24 +0200, Martin Peres wrote:
>>>>> Le 28/04/2011 18:58, Maxim Levitsky a écrit :
>>>>>> Interesting fact is that GPU temperatures rise to very high levels
>>>>>> (~75C) even while doing CPU only work (like compiling kernel for
>>>>>> example).
>>>>> Let me guess, you're on a laptop? The temperature of the case goes up
>>>>> when the processor is working and so, it cools the GPU less ;)
>>>> Yes, but that doesn't happen while using nvidia to this extent.
>>>> I think that GPU has many units running in endless loop doing nothing
>>>> but consuming power (~5W) difference!
>>> I really need to have a look at this. I have a power meter now (acpi
>>> reports me funky power consumption figures because my battery is dead).
>> Just been reading through your posts from last night, and wanted to let
>> you know I'm interested and willing to test patches too.
>>
>> I have an 8600GTS based laptop, and have seen the same range of power
>> usage (ie have seen 14W in the page - presumably when I was using the
>> blob -, but can only get it down to 23W at the moment using Nouveau).
>>
>> Regards,
>>
>> Nigel
> 9W! Well, you can try downclocking the card, but this won't get you down
> to 14W. When fan management is done, I'll have a look at what the blob
> does and try to find some magic there.

Yeah - I find 9W a bit unbelievable too. I'll try to find some time to
give the NVidia driver a run again, but I'm a chronic over-committer, so
won't promise I'll do anything real soon now!

Nigel
-- 
Evolution (n): A hypothetical process whereby improbable
events occur with alarming frequency, order arises from chaos, and
no one is given credit.
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