[ltp] T61 temperature limits

[Jeffrey Taylor]

Quoting Owen Heisler <owenh000@gmail.com>:
[snip]
> According to those two excerpts, using a T state that throttles 50% should 
> force the processor(s) to spend at least half the clock cycles in a sleep 
> state.
> 
> If that is true, then the most effective way to reduce both heat and power 
> usage is to throttle the processor but use the ondemand cpufreq governor to 
> control the processor's frequency, considering that the processor is more 
> efficient at a higher clock speed:
> http://www.thinkwiki.org/wiki/How_to_reduce_power_consumption#CPU
> http://www.bughost.org/pipermail/power/2007-May/000166.html
> 
> But maybe it is not true, as suggested by this on thinkwiki.org.  Maybe 
> throttling a processor does not force it to drop to a sleep state.  Why not?
> http://www.thinkwiki.org/wiki/How_to_make_use_of_Dynamic_Frequency_Scaling#A_note_about_CPU_throttling


Throttling slows down the whole system, the dutycycle program just throttles
one process and its children (e.g., the nested makes used in building the
kernel). 

Jeffrey