diff options
| author | Morten Rasmussen <Morten.Rasmussen@arm.com> | 2012-09-14 14:38:11 +0100 |
|---|---|---|
| committer | Jon Medhurst <tixy@linaro.org> | 2013-07-17 11:12:24 +0100 |
| commit | 943106d9437fcced79c4e48ed794410e5f750b4c (patch) | |
| tree | 0fcac4f90716d5c02e30d9192434cb27234fac5f /arch/arm | |
| parent | 2dd22b22c95851445c189c3d4708c027aa19cf5f (diff) | |
sched: Introduce priority-based task migration filter
Introduces a priority threshold which prevents low priority task
from migrating to faster hmp_domains (cpus). This is useful for
user-space software which assigns lower task priority to background
task.
Signed-off-by: Morten Rasmussen <Morten.Rasmussen@arm.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 5fb586f4fcf..6157ed8e0e3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1511,6 +1511,19 @@ config SCHED_HMP !SCHED_AUTOGROUP. Furthermore, normal load-balancing must be disabled between cpus of different type (DISABLE_CPU_SCHED_DOMAIN_BALANCE). +config SCHED_HMP_PRIO_FILTER + bool "(EXPERIMENTAL) Filter HMP migrations by task priority" + depends on SCHED_HMP + help + Enables task priority based HMP migration filter. Any task with + a NICE value above the threshold will always be on low-power cpus + with less compute capacity. + +config SCHED_HMP_PRIO_FILTER_VAL + int "NICE priority threshold" + default 5 + depends on SCHED_HMP_PRIO_FILTER + config HAVE_ARM_SCU bool help |