[systemd-devel] Definitive place for powertop tunables?

[Mantas Mikulėnas]

On Mon, Nov 19, 2012 at 4:25 AM, Kai Hendry <hendry at iki.fi> wrote:
> Hi there,
>
> I would normally put these `powertop -html` tunables in rc.local:
> http://s.natalian.org/2012-11-19/1353291487_1366x768.png
>
> Is http://0pointer.de/public/systemd-man/tmpfiles.d.html the right
> place? If so powertop could do with some patches to help create the
> file, one would think.

`iwconfig` and `ethtool` should go in udev(7) rules; that way they
will be applied as soon as the hardware appears -- even if, for some
reason, it happens twice.

  https://github.com/vodik/powersave/blob/master/rules.d/50-usb-powersave.rules

The same applies to SATA and PCI settings under /sys:

  https://github.com/vodik/powersave/blob/master/rules.d/50-sata-powersave.rules
  https://github.com/vodik/powersave/blob/master/rules.d/50-pci-powersave.rules

Anything that is written to /sys/module/*/parameters goes to
modprobe.d(5) -- again, to be applied when the module is inserted, not
at some fixed point:

  https://github.com/vodik/powersave/blob/master/modprobe.d/powersave.conf

Use sysctl.conf(5) for settings under /proc/sys:

  https://github.com/vodik/powersave/blob/master/sysctl.d/powersave.conf

(Side note: Is it really better to turn the NMI watchdog off?)

--
Mantas Mikulėnas