Hi,
I have quite a few low-end development/test servers running continuously and I would like to better manage their power consumption. I have found interesting information on how to perform CPU scaling (e.g. [1] or [2]).
But I cannot find if there is a way to (software) monitor power consumption on CentOS (or other such data like CPU temperature, fan speed etc.).
What I read so far is that support is quite limited in this kernel (e.g. PowerTop not providing useful information).
Before I start tuning I would like to be able to measure whether my changes are having any impact at all.
Thanks in advance,
Mathieu
[1] http://www.lesswatts.org/tips/cpu.php [2] http://www.spencerstirling.com/computergeek/powersaving.html
On Thursday 15 April 2010, Mathieu Baudier wrote:
Most machines simply don't have that hardware. Some laptops do and then, with proper kernel, you can run powertop (or read /proc/acpi/power...).
Some servers have power meters built in but uses tools specific to that vendor/server (like HP ppic).
I'd suggest that you buy an external power meter like kill-a-watt.
/Peter
At Thu, 15 Apr 2010 13:31:11 +0200 CentOS mailing list centos@centos.org wrote:
Some things are handled by motherboard and/or processor sensors and lm_sensors will access these sensors ("CPU temperature, fan speed etc.").