commit 4e21177398bb5c3d5ce5736315c52f0447cd615f
author jimmyshiu <jimmyshiu@google.com> Thu Jun 15 15:18:38 2023 +0000
committer Jimmy Shiu <jimmyshiu@google.com> Wed Jun 21 14:12:29 2023 +0000
tree b494be279ba4e66f1a74d1cd0ce2892fa158f050
parent 8d984107c306eb6d776e6f81c07cb533840e5a5c

Send load up hint for cache rendering

cache buffer rendering supposes to utilize the cpu gap after current
frame finised and before the next frame. But it could take long and
delay the next frame start time and cause jank eventually.
Sending CPU LOAD UP hint to prevent stealing time from the next frame.

Bug: 285991802
Test: PtsUiBench QHD
Change-Id: Id619a8166ae253fef815a25a35fc4b82066144a9

services/surfaceflinger/SurfaceFlinger.h

diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 0bc506f..4b29be8 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -194,7 +194,8 @@
                        private IBinder::DeathRecipient,
                        private HWC2::ComposerCallback,
                        private ICompositor,
-                       private scheduler::ISchedulerCallback {
+                       private scheduler::ISchedulerCallback,
+                       private compositionengine::ICEPowerCallback {
 public:
     struct SkipInitializationTag {};
 
@@ -645,6 +646,9 @@
     void kernelTimerChanged(bool expired) override;
     void triggerOnFrameRateOverridesChanged() override;
 
+    // ICEPowerCallback overrides:
+    void notifyCpuLoadUp() override;
+
     // Toggles the kernel idle timer on or off depending the policy decisions around refresh rates.
     void toggleKernelIdleTimer() REQUIRES(mStateLock);