Trying to minimize power consumption...

M

mrjayviper

Hello. I've searched the net on C and P-states in relation to FreeBSD and came upon the "Power Tuning" wiki entry (https://wiki.freebsd.org/TuningPowerConsumption).

1. On the C-state section, it clearly states I should use /etc/rc.conf BUT I know there's also a setting for it in sysctl. So I guess my question is, where is the best placed to set this?

2. Also any other suggestion not available in the wiki will be greatly appreciated. :)

Thanks very much in advance
 
Note that the C-state stuff in /etc/rc.conf (i.e. *_cx_lowest) actually sets the corresponding sysctl values [1]. In fact, it's just a wrapper/nicer interface. See /etc/rc.d/power_profile for details.

[1] sysctl -ad | grep "cpu.*cx"
 
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