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module: sched: add get/set methods for scheduler attributes

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The Linux scheduler exposes a set of tunables via /proc/sys/kernel's
attributes staring by "sched_".

Let's add a convenient API to the sched module to read and set the
values of these attributes.

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
This commit is contained in:
Patrick Bellasi
2018-06-15 12:22:05 +01:00
committed by Marc Bonnici
parent a9ee41855d
commit 5dea9f8bcf
2 changed files with 68 additions and 0 deletions
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16
devlib/bin/scripts/shutils.in
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@@ -238,6 +238,19 @@ hotplug_online_all() {
done
}
################################################################################
# Scheduler
################################################################################
sched_get_kernel_attributes() {
MATCH=${1:-'.*'}
[ -d /proc/sys/kernel/ ] || exit 1
$GREP '' /proc/sys/kernel/sched_* | \
$SED -e 's|/proc/sys/kernel/sched_||' | \
$GREP -e "$MATCH"
}
################################################################################
# Misc
################################################################################
@@ -343,6 +356,9 @@ get_linux_system_id)
get_android_system_id)
get_android_system_id $*
;;
sched_get_kernel_attributes)
sched_get_kernel_attributes $*
;;
*)
echo "Command [$CMD] not supported"
exit -1