Why is 'ktune' service randomly restarted in RHEL 6 hosts?

Solution Unverified - Updated -

Issue

  • Why is 'ktune' service randomly restarted in RHEL 6 hosts?

  • Why do I see messages about the performance CPU governor being disabled and enabled back immediately afterwards?

    Feb 29 11:18:07 hostname cpuspeed: Disabling performance cpu frequency scaling governor
Feb 29 11:18:08 hostname cpuspeed: Enabling performance cpu frequency scaling governor

Environment

  • Red Hat Enterprise Linux 6.
  • Red Hat Enterprise Virtualization 3.x (if using RHEL 6 based hosts).
  • tuned version 0.2.19-15.el6 or earlier.

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