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linux/drivers/cpuidle
Pallipadi, Venkatesh 816bb611e4 cpuidle: Add decaying history logic to menu idle predictor
Add decaying history of predicted idle time, instead of using the last early
wakeup. This logic helps menu governor do better job of predicting idle time.

With this change, we also measured noticable (~8%) power savings on
a DP server system with CPUs supporting deep C states, when system
was lightly loaded. There was no change to power or perf on other load
conditions.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-12-30 18:48:01 -05:00
..
governors cpuidle: Add decaying history logic to menu idle predictor 2008-12-30 18:48:01 -05:00
cpuidle.c regression: disable timer peek-ahead for 2.6.28 2008-11-09 16:28:42 -08:00
cpuidle.h cpuidle: consolidate 2.6.22 cpuidle branch into one patch 2007-10-10 00:12:41 -04:00
driver.c cpuidle: consolidate 2.6.22 cpuidle branch into one patch 2007-10-10 00:12:41 -04:00
governor.c cpuidle: remove unused exports 2007-10-29 17:27:50 -04:00
Kconfig ACPI: CONFIG_CPU_IDLE=ACPI by default 2007-11-19 22:22:37 -05:00
Makefile cpuidle: consolidate 2.6.22 cpuidle branch into one patch 2007-10-10 00:12:41 -04:00
sysfs.c cpuidle: make sysfs attributes sysdev class attributes 2008-08-12 16:07:28 -07:00