[Tfug] Throttling cpu based on cpu temp?

Timothy D. Lenz tlenz at vorgon.com
Mon Apr 1 13:11:08 MST 2013


I won't touch mcafee. When it first came out, it was freeware and was a 
good idea. Now that it is a big corp., stay clear. I have had bad 
problems with it and know of several others who have. I'm using Panda 
Cloud now.

On 3/31/2013 10:35 PM, Kramer Lee wrote:
> If there is any program like i8kfangui for this laptop, it might work
> to run the processor fan at a lower temperature.  i8kfangui works
> great on some Dell laptops in windows, but I don't know how t get it
> to work in LInux.  I find instructions on getting it to work in older
> versions of Linux.
> Actually that somewhat limits my use of Linux on some laptops because
> they run hot if they get sustained loads.  One thing that gives it a
> sustained load is Clonezilla.  (I think I saw some instances on blogs
> of people talking about how their laptops would shut down in the
> middle of a Clonezilla cloning session) Cloning a drive with that
> program will test your laptop for shutting down, and if it shuts down
> in the middle of a clone then it might write a sector with a bad CRC,
> which sometimes makes the drive tricky to use or unusable.
> PartedMagic seems to notice when it is using the processor heavily and
> throttle back.  So I use PartedMagic to clone even though it takes a
> lot more steps, when cloning using a laptop.  This won't be a problem
> on most desktops.
>
> Other things that I have seen use 100% processor for hours are  McAfee
> virusScan fighting with McAfee mcshield.exe in Windows, and Firefox
> running many flash sites at once, or getting messed up somehow in
> Linux and Windows.
>
> On 3/15/13, Timothy D. Lenz <tlenz at vorgon.com> wrote:
>> When I first setup a governor up, I used a a module that didn't come
>> with the kernel. It is possible to make your own governor modules if you
>> can code. Their is/was a user governor option for this. Try these
>> keywords on google:
>>
>> linux cpu userspace governor
>>
>> On 3/15/2013 7:16 AM, Claude Rubinson wrote:
>>> On Thu, Mar 14, 2013 at 09:45:02PM -0700, Timothy D. Lenz wrote:
>>>> Don't know about based on heat. can throttle based on load if supported:
>>>
>>> Right, but the problem here is sustained load, and the governors don't
>>> take this into account.  So if my processor is maxing out on a task
>>> for a handful of seconds (e.g., a statistical analysis), that's not a
>>> problem and I'm happy for it to scale up temporarily.  But if it
>>> sustains this for more than a couple of minutes (e.g., transcoding a
>>> DVD), then the temperature begins to crawl up.
>>>
>>> While I could just limit the cpu's maximum frequency, my preference is
>>> to only do so when necessary.
>>>
>>> The underlying cause might be that the fan isn't spinning up quickly
>>> enough and/or spinning fast enough, so I'm investigating that as well.
>>>
>>> Claude
>>>
>>>
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>
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