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[Xen-devel] [PATCH 4/4] CPUIDLE: Port menu governor


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Wei, Gang" <gang.wei@xxxxxxxxx>
  • Date: Tue, 9 Sep 2008 16:28:40 +0800
  • Accept-language: en-US
  • Acceptlanguage: en-US
  • Delivery-date: Tue, 09 Sep 2008 01:30:02 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AckSVg/sSoYd+LbbQtmAQ1RDUeY8cQ==
  • Thread-topic: [PATCH 4/4] CPUIDLE: Port menu governor

CPUIDLE: Port Linux menu governor to replace the initial ladder governor

The ladder governor has long pro/demotion delay shortcome while applying to 
tickless mode, because it needs to count usage. Menu governor chooses the next 
state simply via break-event prediction including the factors of next timer 
event & last residency time etc, so it would have faster response speed.

Signed-off-by: Gang Wei <gang.wei@xxxxxxxxx>

Attachment: cpuidle_menu_governor_0909.patch
Description: cpuidle_menu_governor_0909.patch

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