commit 0acf9d9754e5a15f93d23b715288ecb74034b3a2
author Matthew Bouyack <mbouyack@google.com> Thu Feb 15 09:36:54 2018 -0800
committer Matthew Bouyack <mbouyack@google.com> Thu Feb 15 18:35:41 2018 +0000
tree e956bb15597fdabf960c75d1ff27b87f155b4207
parent e842c65cf6c9453e95347d79863c1e4b73360e7a

Set the 'latch_unsignaled' property for msm8x09 devices.

Without this change we sometimes skip the execution of SurfaceFlinger
for one frame, which increases latency and often leads to jank.

This is one of several jank improvements suggested by Qualcomm.

Bug: 68943050
Change-Id: I3db1519f8cab496454d900b18f0fa1629c33605c

msm8x09.mk

diff --git a/msm8x09.mk b/msm8x09.mk
index c3d9d98..91a04ca 100644
--- a/msm8x09.mk
+++ b/msm8x09.mk
@@ -17,4 +17,5 @@
   debug.composition.type=dyn \
   debug.hwc.dynThreshold=4.5 \
   debug.sf.hwc.canUseABC=1 \
-  debug.sf.disable_backpressure=1
+  debug.sf.disable_backpressure=1 \
+  debug.sf.latch_unsignaled=1 \