On Thursday 15 April 2010, Mathieu Baudier wrote: > 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.). 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). > 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. I'd suggest that you buy an external power meter like kill-a-watt. /Peter > Thanks in advance, > > Mathieu > > > [1] http://www.lesswatts.org/tips/cpu.php > [2] http://www.spencerstirling.com/computergeek/powersaving.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part. URL: <http://lists.centos.org/pipermail/centos/attachments/20100415/86221911/attachment-0005.sig>