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Add foreground/boost cpuset.

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This is used for app launches (and maybe other high priority tasks
in the future). It's to be set to whatever cores should be used
for short term high-priority tasks.

bug 21915482

Change-Id: Id0ab0499146c09e860b97f4cb8095834cb12dd50
This commit is contained in:
Tim Murray 2015-08-25 00:30:55 -07:00
parent a77a048752
commit 3985dda1c3
1 changed files with 6 additions and 0 deletions
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6
rootdir/init.rc
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@ -140,20 +140,26 @@ on init
mkdir /dev/cpuset
mount cpuset none /dev/cpuset
mkdir /dev/cpuset/foreground
mkdir /dev/cpuset/foreground/boost
mkdir /dev/cpuset/background
# this ensures that the cpusets are present and usable, but the device's
# init.rc must actually set the correct cpus
write /dev/cpuset/foreground/cpus 0
write /dev/cpuset/foreground/boost/cpus 0
write /dev/cpuset/background/cpus 0
write /dev/cpuset/foreground/mems 0
write /dev/cpuset/foreground/boost/mems 0
write /dev/cpuset/background/mems 0
chown system system /dev/cpuset
chown system system /dev/cpuset/foreground
chown system system /dev/cpuset/foreground/boost
chown system system /dev/cpuset/background
chown system system /dev/cpuset/tasks
chown system system /dev/cpuset/foreground/tasks
chown system system /dev/cpuset/foreground/boost/tasks
chown system system /dev/cpuset/background/tasks
chmod 0664 /dev/cpuset/foreground/tasks
chmod 0664 /dev/cpuset/foreground/boost/tasks
chmod 0664 /dev/cpuset/background/tasks
chmod 0664 /dev/cpuset/tasks