commit cab4c2f2673034356de895fa661aa3dc979ff20e
author Ady Abraham <adyabr@google.com> Fri Jul 12 16:59:39 2019 -0700
committer Ady Abraham <adyabr@google.com> Mon Jul 22 10:27:20 2019 -0700
tree 81a62c08e28099afd2efde5dbba3114a6d95f5c5
parent ddb5f84005c03cb000d9f2ad042347e8d0e336de

SurfaceFlinger: tune LayerHistory to be less aggressive

Increase the thresholds to mark layer as "relevant" to be less agressive
when changing refresh rate based on content.

Bug: 136558136
Test: 1) put icons in drawer/folder on homescreen
2) tap drawer to expand
3) tap homescreen to contract drawer
4) goto 2), repeating quickly.
Test: libsurfaceflinger_unnittest

Change-Id: I2a9b696f267d93720408a41dceb4acb7dc80bd69

services/surfaceflinger/Scheduler/LayerInfo.h

diff --git a/services/surfaceflinger/Scheduler/LayerInfo.h b/services/surfaceflinger/Scheduler/LayerInfo.h
index 66df9dc..a733781 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.h
+++ b/services/surfaceflinger/Scheduler/LayerInfo.h
@@ -129,8 +129,8 @@
 
     private:
         std::deque<nsecs_t> mElements;
-        static constexpr size_t HISTORY_SIZE = 10;
-        static constexpr std::chrono::nanoseconds HISTORY_TIME = 500ms;
+        static constexpr size_t HISTORY_SIZE = 90;
+        static constexpr std::chrono::nanoseconds HISTORY_TIME = 1s;
     };
 
 public: