[Git-commits] [grml/grml-autoconfig] 03d432: config_cpu: set ondemand governor only if availabl...

Michael Prokop mika at grml.org
Thu Dec 11 11:37:01 CET 2014

  Branch: refs/heads/master
  Home:   https://github.com/grml/grml-autoconfig
  Commit: 03d4320918d6ce6ac65428380e4d32ad04987f80
  Author: Michael Prokop <mika at grml.org>
  Date:   2014-12-11 (Thu, 11 Dec 2014)

  Changed paths:
    M autoconfig.functions

  Log Message:
  config_cpu: set ondemand governor only if available

Nowadays we enable and use the ondemand governor by default in
our kernel configuration. More recent systems providing Intel
Haswell CPUs (e.g. the i7-3520M CPU as present in the Lenovo X230
laptops as well as the CPU present in IBM flex chassis) use
pstates/intel_pstate and disable the ondemand governor at all, so
only performance and powersave are available (unless you set
intel_pstate=disable at boot time).

Also see https://plus.google.com/+TheodoreTso/posts/2vEekAsG2QT
Thanks to Yves-Alexis Perez for the pointer.

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