[ltp] [Power management] DynamicClocks

[Paul RIVIER]

Greg Macek wrote:

>What kind of temperature differences are you seeing when DynamicClocks
>is running vs. not? It says it's enabled for me, but I'm not sure what
>benefit I'm really seeing.
>
>
>  
>
With no DynamicClocks, and with no fan (cf my scripts, you should really 
give them a try, they work like a charm ;) ), my GPU - cat 
/proc/acpi/ibm/thermal : the 4° value - remains stable at around 50 °C. 
With dynamicClocks, it reaches 60 °C and waste power (more than 1 watt).
Please let me tell you that under 55 °C, fan is *useless* and wastes 0,7 
to 1 Watt, so if your fan is supported by the last ibm-acpi, you sould 
use my scripts (or yours if you do not like mines) to save power and 
avoid noise :)

paul