diff options
| author | Morten Rasmussen <Morten.Rasmussen@arm.com> | 2012-09-14 14:38:11 +0100 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2013-03-12 14:54:32 +0530 |
| commit | b46f8c8b364e03ea97e0807fe4e09d32c9dce69a (patch) | |
| tree | 342b89b464d5676f4dee0fd3305396a4ee787810 /arch | |
| parent | bc4ed1b52249e43657b264dcf8e12384d4d33b4c (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')
| -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 7abe7094def..d24768c04be 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1599,6 +1599,19 @@ 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 |