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Commit c8cc2292 authored by Jorim Jaggi's avatar Jorim Jaggi
Browse files

Boost thread priorities when running recents anim 

To improve scheduling in WM to improve latency.

Bug: 73651529

Test: go/wm-smoke
Test: Trace swiping up, make sure threads have right priority
Change-Id: Ic35c00b70be4877abfe07de4ba1f18648cabd812
parent a3178fc4

services/core/java/com/android/server/wm/AppTransition.java

+10 −4
Original line number Diff line number Diff line
@@ -469,10 +469,16 @@ public class AppTransition implements Dump { 
     * boost the priorities to a more important value whenever an app transition is going to happen

     * soon or an app transition is running.

     */

    private void updateBooster() {

        WindowManagerService.sThreadPriorityBooster.setAppTransitionRunning(

                mNextAppTransition != TRANSIT_UNSET || mAppTransitionState == APP_STATE_READY

                        || mAppTransitionState == APP_STATE_RUNNING);

    void updateBooster() {

        WindowManagerService.sThreadPriorityBooster.setAppTransitionRunning(needsBoosting());

    }



    private boolean needsBoosting() {

        final boolean recentsAnimRunning = mService.getRecentsAnimationController() != null;

        return mNextAppTransition != TRANSIT_UNSET

                || mAppTransitionState == APP_STATE_READY

                || mAppTransitionState == APP_STATE_RUNNING

                || recentsAnimRunning;

    }



    void registerListenerLocked(AppTransitionListener listener) {

services/core/java/com/android/server/wm/WindowManagerService.java

+2 −0
Original line number Diff line number Diff line
@@ -2651,6 +2651,7 @@ public class WindowManagerService extends IWindowManager.Stub 
        synchronized (mWindowMap) {

            mRecentsAnimationController = new RecentsAnimationController(this,

                    recentsAnimationRunner, callbacks, displayId);

            mAppTransition.updateBooster();

            mRecentsAnimationController.initialize(recentTaskIds);

        }

    }
@@ -2687,6 +2688,7 @@ public class WindowManagerService extends IWindowManager.Stub 
            if (mRecentsAnimationController != null) {

                mRecentsAnimationController.cleanupAnimation();

                mRecentsAnimationController = null;

                mAppTransition.updateBooster();

            }

        }

    }