kernel_optimize_test/drivers/cpuidle
Rafael J. Wysocki f1c8e410cd cpuidle: menu: Avoid computations when result will be discarded
If the minimum interval taken into account in the average computation
loop in get_typical_interval() is less than the expected idle
duration determined so far, the resultant average cannot be greater
than that value as well and the entire return result of the function
is going to be discarded anyway going forward.

In that case, it is a waste of time to carry out the remaining
computations in get_typical_interval(), so avoid that by returning
early if the minimum interval is not below the expected idle duration.

No intentional changes of behavior.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-10-18 09:34:13 +02:00
..
governors cpuidle: menu: Avoid computations when result will be discarded 2018-10-18 09:34:13 +02:00
coupled.c smp: Avoid using two cache lines for struct call_single_data 2017-08-29 15:14:38 +02:00
cpuidle-arm.c ARM: cpuidle: silence error on driver registration failure 2018-06-25 09:33:34 +02:00
cpuidle-at91.c
cpuidle-big_little.c
cpuidle-calxeda.c
cpuidle-clps711x.c
cpuidle-cps.c Update MIPS email addresses 2017-11-03 09:02:30 -07:00
cpuidle-exynos.c cpuidle: Enable coupled cpuidle support on Exynos3250 platform 2018-03-29 13:06:08 +02:00
cpuidle-kirkwood.c
cpuidle-mvebu-v7.c
cpuidle-powernv.c powernv/cpuidle: Use parsed device tree values for cpuidle_init 2018-07-31 19:56:44 +10:00
cpuidle-pseries.c powerpc/pseries/cpuidle: add polling idle for shared processor guests 2018-01-18 15:43:44 +11:00
cpuidle-ux500.c
cpuidle-zynq.c
cpuidle.c cpuidle: enter_state: Don't needlessly calculate diff time 2018-09-18 09:32:56 +02:00
cpuidle.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
driver.c cpuidle: Make drivers initialize polling state 2017-08-30 03:06:33 +02:00
dt_idle_states.c Merge branch 'pm-sleep' 2017-09-04 00:06:02 +02:00
dt_idle_states.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
governor.c cpuidle: governors: Consolidate PM QoS handling 2018-05-30 23:13:00 +02:00
Kconfig
Kconfig.arm ARM: cpuidle: Support asymmetric idle definition 2017-06-24 01:51:00 +02:00
Kconfig.mips
Kconfig.powerpc
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
poll_state.c cpuidle: poll_state: Revise loop termination condition 2018-10-04 19:27:27 +02:00
sysfs.c PM: cpuidle/suspend: Add s2idle usage and time state attributes 2018-03-29 13:06:08 +02:00