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Commit deea0b5d authored by Jing Ji's avatar Jing Ji
Browse files

Skip background memory trim if the app is in the foreground state 

Bug: 308927629
Test: Manual
Change-Id: I96792546c073176d6ce90769bf52f16790565178
parent d99ad6f8

core/java/android/app/ActivityThread.java

+6 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ package android.app; 


import static android.app.ActivityManager.PROCESS_STATE_UNKNOWN;

import static android.app.ConfigurationController.createNewConfigAndUpdateIfNotNull;

import static android.app.Flags.skipBgMemTrimOnFgApp;

import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;

import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;

import static android.app.servertransaction.ActivityLifecycleItem.ON_CREATE;
@@ -7078,6 +7079,11 @@ public final class ActivityThread extends ClientTransactionHandler 
        if (DEBUG_MEMORY_TRIM) Slog.v(TAG, "Trimming memory to level: " + level);



        try {

            if (skipBgMemTrimOnFgApp()

                    && mLastProcessState <= ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND

                    && level >= ComponentCallbacks2.TRIM_MEMORY_BACKGROUND) {

                return;

            }

            if (level >= ComponentCallbacks2.TRIM_MEMORY_COMPLETE) {

                PropertyInvalidatedCache.onTrimMemory();

            }

core/java/android/app/activity_manager.aconfig

+11 −0
Original line number Diff line number Diff line
@@ -70,3 +70,14 @@ flag { 
         purpose: PURPOSE_BUGFIX

     }

}



flag {

     namespace: "backstage_power"

     name: "skip_bg_mem_trim_on_fg_app"

     description: "Skip background memory trim event on foreground processes."

     is_fixed_read_only: true

     bug: "308927629"

     metadata {

         purpose: PURPOSE_BUGFIX

     }

}