On Mon, 19 Oct 2015 21:47:36 -0700, Kevin Oberman wrote: > > I suspect it might not touch the c states, but better check. The safest is > > disable them in the bios. > > > > To disable C-States: > sysctl dev.cpu.0.cx_lowest=C1
Actually, you want to set hw.acpi.cpu.cx_lowest=C1 instead. Otherwise you've only changed cpu.0; if you try it you should see that other CPUs will have retained their previous C-state setting - up to 9.3 at least. Setting performance_cx_lowest=C1 in rc.conf (and economy_cx_lowest=C1 on laptops) performs that by setting hw.acpi.cpu.cx_lowest on boot (and on every change to/from battery power) in power_profile via devd notifies. cheers, Ian _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
