commit d9c3c76a3f12a917c39038f6e17d47fa19aecf99
author Rick Yiu <rickyiu@google.com> Mon Nov 18 19:51:03 2019 +0800
committer Rick Yiu <rickyiu@google.com> Mon Nov 18 13:22:19 2019 +0000
tree 07ff41260330cd6199a370973566fd927b12367d
parent be6709778242d93cae971e5a304a80a681f7a4c3

Change the weight of blkio background group

Previous setting is too agressive, so that bg IO processing may
be dealyed too long if there is continuous IO in root (fg) group.
Raise the background weight to avoid critical issue like watchdog.

Test: no restart while filling up the storage
      app launch test still gets benefit with IO busy in bg
Bug: 143165069
Change-Id: Ie080419502129449c3c9caa143f6f9f86b59269d

init.hardware.rc

diff --git a/init.hardware.rc b/init.hardware.rc
index 7b79a96..115c2c4 100644
--- a/init.hardware.rc
+++ b/init.hardware.rc
@@ -586,7 +586,7 @@
     # Setup runtime blkio
     # value for group_idle is us
     write /dev/blkio/blkio.weight 1000
-    write /dev/blkio/background/blkio.weight 10
+    write /dev/blkio/background/blkio.weight 200
     write /dev/blkio/blkio.group_idle 2000
     write /dev/blkio/background/blkio.group_idle 0