commit 20cfc723d855d5c4f274d43660fceaadc513564e
author Iliyan Malchev <malchev@google.com> Tue Jul 16 10:28:55 2013 -0700
committer The Android Automerger <android-build@google.com> Tue Jul 16 15:25:54 2013 -0700
tree 5a1934ce432ebaf0103d132797271b8c53a30673
parent ffe1d10ff9ad9cc627ce6bb2294ab74f08cefde0

init.flo.rc: Enable frequency synchronization on thread migration

Setting the cpu.notify_on_migrate node in sysfs, so that on a thread
migration of a task belonging 'apps' cgroup, the destination core's
frequency is synchronized to the source core's frequency.

Related-to-bug: 9857006 -- device gets super sluggish
Related-to-bug: 9863988 -- flo gets in a weird slow state w/ a lot of paging
Change-Id: Iae16ebffc88422c4602f4f6f4c350581badeadc0
Signed-off-by: Iliyan Malchev <malchev@google.com>

init.deb.rc

diff --git a/init.deb.rc b/init.deb.rc
index ea9afc5..859b152 100644
--- a/init.deb.rc
+++ b/init.deb.rc
@@ -250,6 +250,7 @@
     write /sys/devices/system/cpu/cpu1/online 1
     write /sys/devices/system/cpu/cpu2/online 1
     write /sys/devices/system/cpu/cpu3/online 1
+    write /dev/cpuctl/apps/cpu.notify_on_migrate 1
 
 on charger
     # Enable Power modes and set the CPU Freq Sampling rates