xfce4-power-manager provides xfce4-power-information, which offers to display current processor wakeups on a per-process basis. This function however only works correctly when the TIMER_STATS kernel option is enabled (needs DEBUG_KERNEL to be visible). The ebuild should notify the user about this. The same goes for powertop (although powertop also notifies the user at runtime, which xfce4-power-information does not)
+ 07 Feb 2012; Samuli Suominen <ssuominen@gentoo.org> + xfce4-power-manager-1.0.10-r1.ebuild: + Check for CONFIG_TIMER_STATS (for xfce4-power-information, see + src/xfpm-power-info.c) wrt #402455 by "haarp"
thanks!