Reduce oom score adj of Dbus Broker

Dbus broker uses 1.2GB and dosent get earlyoom killed until every other process is killed
due to its oom_score_adj value of -900. Reducing it to -600 to allow other processes
to stay alive when dbus broker uses >90% of the system's memory.

I see a 60 oom score decrease for every 100 adjust. Currently using 95% of the system's
memory has a badness score of 662. Now it should have a score of 842, which should be killed
early on in the earlyoom kill streak.

I see around 670 as the average badness score of other processes on the system.

Tested:
Messed around w oom score adj on real machine.

fusion2:
938ee1f0-6bc1-3d59-906a-5b3fa3ebf1db
d3520ed4-34e5-3769-95fb-bc66888327ce
dbc9a17c-df97-3dbe-8c39-00d568e517df
0c2880d3-2bf5-3faa-a772-fbb371e105ad
0c2880d3-2bf5-3faa-a772-fbb371e105ad

Test failure on one of the platforms.

Google-Bug-Id: 438738723
Change-Id: I7d48e15a73993c6d0c33bc0a2fec69696c90baa0
Signed-off-by: Edward Lee <edwarddl@google.com>
1 file changed
tree: 1d5b256e4bb9d61baed8130fb1fcfc469efa2e3d
  1. linux/
  2. .gitmodules