running CPUidle and rain?

[bigslammer]

my friends tell me that cpuidle and rain use two different instructions to put the cpu in a lower mode, if true I was wondering if/should I run both these programs to help cool it and whether it decreases performance.

[fvay]

they both create HLT code cycles to the cpu. I dont even agree with the idea of these HLT command softwares. Why dont u leave the cpu for its routine and dont make those HLT cycles. After all Lower temperature is not the only key to the life of a CPU but also consistent temperature. all cpus are made to run in the temperatures upto 70-80 celcius. running it consistently on 45 C is much better than constantly riding from 40 to 45 back and forth.

[bigslammer]

thanks for the advice fvay.

[neo]

From a personal experience I would have to disagree. If I don't run rain my CPU swings from 35 degrees C to 40 degrees C. When I do run rain the swing is from 32 to 37. The range remains the same, but the overall temp is lower. These processors are designes to take thermal cycling of at least 5 degrees.

-neo