commit 272e7a60cb275204acb13d00ba87760497ef8172
author Daeho Jeong <daehojeong@google.com> Mon Feb 15 14:37:01 2021 +0900
committer Jaegeuk Kim <jaegeuk@google.com> Wed Feb 24 19:42:50 2021 +0000
tree 060fa73670b5b59a5a6a00d1e17a7abb44f6f9a1
parent cb4ebecbbdc75c8cc18ea6ed353d58700aeab8f8

bfq: set background cgroup weight to 10

For better responsiveness of foreground task's io in BFQ I/O scheduler,
set background task's weight from default 100 to 10.

Test: cat /dev/blkio/background/blkio.bfq.weight
Bug: 171739280
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Change-Id: I6a4ea2d46c4426d3e34c7ea71a4653e0ce3ed0df

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 7464d6d..995b1c5 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -244,6 +244,7 @@
     chmod 0664 /dev/blkio/background/tasks
     write /dev/blkio/blkio.weight 1000
     write /dev/blkio/background/blkio.weight 200
+    write /dev/blkio/background/blkio.bfq.weight 10
     write /dev/blkio/blkio.group_idle 0
     write /dev/blkio/background/blkio.group_idle 0