On Sat, Feb 27, 2010 at 11:41 PM, Tomasz Chmielewski <[email protected]> wrote: > Does offlining a CPU save power? > > For example, if I do something like this on a Core i7 CPU - will it save > any power? > > echo 0 > /sys/devices/system/cpu/cpu2/online > echo 0 > /sys/devices/system/cpu/cpu3/online > echo 0 > /sys/devices/system/cpu/cpu4/online > echo 0 > /sys/devices/system/cpu/cpu5/online > echo 0 > /sys/devices/system/cpu/cpu6/online > echo 0 > /sys/devices/system/cpu/cpu7/online
A thread in LKML on 2007 http://forum.soft32.com/linux/CPU-offline-power-consumption-increased-ftopict342568.html Dunno if things different now -- andika _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
