commit c0bc121ca8dc1d24131489dcd529fd1897fad1e7
author Rick Yiu <rickyiu@google.com> Mon Nov 18 19:55:17 2019 +0800
committer Rick Yiu <rickyiu@google.com> Mon Nov 18 13:22:29 2019 +0000
tree 506a136f84c5b9e1031c7803be2ff42876946deb
parent 8420cb98be4c3b8fc4650903abc1510ed0a23afb

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: I679f8cb4148776ac16391fcc2feffe88f8b1c7a5

init.hardware.rc

diff --git a/init.hardware.rc b/init.hardware.rc
index f6643df..fa97493 100644
--- a/init.hardware.rc
+++ b/init.hardware.rc
@@ -606,7 +606,7 @@
     # Setup final 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