| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.am; |
| |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_ALL; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_ALL_IMPLICIT; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_FOREGROUND_CAMERA; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_FOREGROUND_LOCATION; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_FOREGROUND_MICROPHONE; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_NETWORK; |
| import static android.app.ActivityManager.PROCESS_CAPABILITY_NONE; |
| import static android.app.ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE; |
| import static android.app.ActivityManager.PROCESS_STATE_BOUND_TOP; |
| import static android.app.ActivityManager.PROCESS_STATE_CACHED_ACTIVITY; |
| import static android.app.ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT; |
| import static android.app.ActivityManager.PROCESS_STATE_CACHED_EMPTY; |
| import static android.app.ActivityManager.PROCESS_STATE_CACHED_RECENT; |
| import static android.app.ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE; |
| import static android.app.ActivityManager.PROCESS_STATE_IMPORTANT_BACKGROUND; |
| import static android.app.ActivityManager.PROCESS_STATE_IMPORTANT_FOREGROUND; |
| import static android.app.ActivityManager.PROCESS_STATE_LAST_ACTIVITY; |
| import static android.app.ActivityManager.PROCESS_STATE_NONEXISTENT; |
| import static android.app.ActivityManager.PROCESS_STATE_PERSISTENT; |
| import static android.app.ActivityManager.PROCESS_STATE_PERSISTENT_UI; |
| import static android.app.ActivityManager.PROCESS_STATE_SERVICE; |
| import static android.app.ActivityManager.PROCESS_STATE_TOP; |
| import static android.app.ActivityManager.PROCESS_STATE_TRANSIENT_BACKGROUND; |
| import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_CAMERA; |
| import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_LOCATION; |
| import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_MICROPHONE; |
| import static android.os.Process.SCHED_OTHER; |
| import static android.os.Process.THREAD_GROUP_BACKGROUND; |
| import static android.os.Process.THREAD_GROUP_DEFAULT; |
| import static android.os.Process.THREAD_GROUP_RESTRICTED; |
| import static android.os.Process.THREAD_GROUP_TOP_APP; |
| import static android.os.Process.THREAD_PRIORITY_DISPLAY; |
| import static android.os.Process.THREAD_PRIORITY_TOP_APP_BOOST; |
| import static android.os.Process.setProcessGroup; |
| import static android.os.Process.setThreadPriority; |
| import static android.os.Process.setThreadScheduler; |
| |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKUP; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LRU; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_OOM_ADJ; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_OOM_ADJ_REASON; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESS_OBSERVERS; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PSS; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_UID_OBSERVERS; |
| import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_USAGE_STATS; |
| import static com.android.server.am.ActivityManagerService.DISPATCH_OOM_ADJ_OBSERVER_MSG; |
| import static com.android.server.am.ActivityManagerService.IDLE_UIDS_MSG; |
| import static com.android.server.am.ActivityManagerService.TAG_BACKUP; |
| import static com.android.server.am.ActivityManagerService.TAG_LRU; |
| import static com.android.server.am.ActivityManagerService.TAG_OOM_ADJ; |
| import static com.android.server.am.ActivityManagerService.TAG_UID_OBSERVERS; |
| import static com.android.server.am.AppProfiler.TAG_PSS; |
| import static com.android.server.am.PlatformCompatCache.CACHED_COMPAT_CHANGE_CAMERA_MICROPHONE_CAPABILITY; |
| import static com.android.server.am.PlatformCompatCache.CACHED_COMPAT_CHANGE_PROCESS_CAPABILITY; |
| import static com.android.server.am.PlatformCompatCache.CACHED_COMPAT_CHANGE_USE_SHORT_FGS_USAGE_INTERACTION_TIME; |
| import static com.android.server.am.ProcessList.TAG_PROCESS_OBSERVERS; |
| import static com.android.server.wm.ActivityTaskManagerDebugConfig.DEBUG_SWITCH; |
| |
| import android.annotation.Nullable; |
| import android.app.ActivityManager; |
| import android.app.ActivityThread; |
| import android.app.ApplicationExitInfo; |
| import android.app.usage.UsageEvents; |
| import android.compat.annotation.ChangeId; |
| import android.compat.annotation.EnabledAfter; |
| import android.compat.annotation.EnabledSince; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.ServiceInfo; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.PowerManagerInternal; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.os.Trace; |
| import android.util.ArrayMap; |
| import android.util.ArraySet; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| |
| import com.android.internal.annotations.CompositeRWLock; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.server.LocalServices; |
| import com.android.server.ServiceThread; |
| import com.android.server.am.PlatformCompatCache.CachedCompatChangeId; |
| import com.android.server.wm.ActivityServiceConnectionsHolder; |
| import com.android.server.wm.WindowProcessController; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayDeque; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| /** |
| * All of the code required to compute proc states and oom_adj values. |
| */ |
| public class OomAdjuster { |
| static final String TAG = "OomAdjuster"; |
| static final String OOM_ADJ_REASON_METHOD = "updateOomAdj"; |
| static final String OOM_ADJ_REASON_NONE = OOM_ADJ_REASON_METHOD + "_meh"; |
| static final String OOM_ADJ_REASON_ACTIVITY = OOM_ADJ_REASON_METHOD + "_activityChange"; |
| static final String OOM_ADJ_REASON_FINISH_RECEIVER = OOM_ADJ_REASON_METHOD + "_finishReceiver"; |
| static final String OOM_ADJ_REASON_START_RECEIVER = OOM_ADJ_REASON_METHOD + "_startReceiver"; |
| static final String OOM_ADJ_REASON_BIND_SERVICE = OOM_ADJ_REASON_METHOD + "_bindService"; |
| static final String OOM_ADJ_REASON_UNBIND_SERVICE = OOM_ADJ_REASON_METHOD + "_unbindService"; |
| static final String OOM_ADJ_REASON_START_SERVICE = OOM_ADJ_REASON_METHOD + "_startService"; |
| static final String OOM_ADJ_REASON_GET_PROVIDER = OOM_ADJ_REASON_METHOD + "_getProvider"; |
| static final String OOM_ADJ_REASON_REMOVE_PROVIDER = OOM_ADJ_REASON_METHOD + "_removeProvider"; |
| static final String OOM_ADJ_REASON_UI_VISIBILITY = OOM_ADJ_REASON_METHOD + "_uiVisibility"; |
| static final String OOM_ADJ_REASON_ALLOWLIST = OOM_ADJ_REASON_METHOD + "_allowlistChange"; |
| static final String OOM_ADJ_REASON_PROCESS_BEGIN = OOM_ADJ_REASON_METHOD + "_processBegin"; |
| static final String OOM_ADJ_REASON_PROCESS_END = OOM_ADJ_REASON_METHOD + "_processEnd"; |
| |
| /** |
| * Flag {@link android.content.Context#BIND_INCLUDE_CAPABILITIES} is used |
| * to pass while-in-use capabilities from client process to bound service. In targetSdkVersion |
| * R and above, if client is a TOP activity, when this flag is present, bound service gets all |
| * while-in-use capabilities; when this flag is not present, bound service gets no while-in-use |
| * capability from client. |
| */ |
| @ChangeId |
| @EnabledAfter(targetSdkVersion=android.os.Build.VERSION_CODES.Q) |
| static final long PROCESS_CAPABILITY_CHANGE_ID = 136274596L; |
| |
| /** |
| * In targetSdkVersion R and above, foreground service has camera and microphone while-in-use |
| * capability only when the {@link android.R.attr#foregroundServiceType} is configured as |
| * {@link android.content.pm.ServiceInfo#FOREGROUND_SERVICE_TYPE_CAMERA} and |
| * {@link android.content.pm.ServiceInfo#FOREGROUND_SERVICE_TYPE_MICROPHONE} respectively in the |
| * manifest file. |
| * In targetSdkVersion below R, foreground service automatically have camera and microphone |
| * capabilities. |
| */ |
| @ChangeId |
| @EnabledAfter(targetSdkVersion=android.os.Build.VERSION_CODES.Q) |
| static final long CAMERA_MICROPHONE_CAPABILITY_CHANGE_ID = 136219221L; |
| |
| /** |
| * For apps targeting S+, this determines whether to use a shorter timeout before elevating the |
| * standby bucket to ACTIVE when apps start a foreground service. |
| */ |
| @ChangeId |
| @EnabledSince(targetSdkVersion = android.os.Build.VERSION_CODES.S) |
| static final long USE_SHORT_FGS_USAGE_INTERACTION_TIME = 183972877L; |
| |
| /** |
| * For some direct access we need to power manager. |
| */ |
| PowerManagerInternal mLocalPowerManager; |
| |
| /** |
| * Service for optimizing resource usage from background apps. |
| */ |
| CachedAppOptimizer mCachedAppOptimizer; |
| |
| /** |
| * Re-rank apps getting a cache oom adjustment from lru to weighted order |
| * based on weighted scores for LRU, PSS and cache use count. |
| */ |
| CacheOomRanker mCacheOomRanker; |
| |
| ActivityManagerConstants mConstants; |
| |
| final long[] mTmpLong = new long[3]; |
| |
| /** |
| * Current sequence id for oom_adj computation traversal. |
| */ |
| int mAdjSeq = 0; |
| |
| /** |
| * Keep track of the number of service processes we last found, to |
| * determine on the next iteration which should be B services. |
| */ |
| int mNumServiceProcs = 0; |
| int mNewNumAServiceProcs = 0; |
| int mNewNumServiceProcs = 0; |
| |
| /** |
| * Keep track of the non-cached/empty process we last found, to help |
| * determine how to distribute cached/empty processes next time. |
| */ |
| int mNumNonCachedProcs = 0; |
| |
| /** |
| * Keep track of the number of cached hidden procs, to balance oom adj |
| * distribution between those and empty procs. |
| */ |
| int mNumCachedHiddenProcs = 0; |
| |
| /** Track all uids that have actively running processes. */ |
| @CompositeRWLock({"mService", "mProcLock"}) |
| ActiveUids mActiveUids; |
| |
| /** |
| * The handler to execute {@link #setProcessGroup} (it may be heavy if the process has many |
| * threads) for reducing the time spent in {@link #applyOomAdjLSP}. |
| */ |
| private final Handler mProcessGroupHandler; |
| |
| private final ArraySet<BroadcastQueue> mTmpBroadcastQueue = new ArraySet(); |
| |
| private final ActivityManagerService mService; |
| private final ProcessList mProcessList; |
| private final ActivityManagerGlobalLock mProcLock; |
| |
| private final int mNumSlots; |
| private final ArrayList<ProcessRecord> mTmpProcessList = new ArrayList<ProcessRecord>(); |
| private final ArrayList<UidRecord> mTmpBecameIdle = new ArrayList<UidRecord>(); |
| private final ActiveUids mTmpUidRecords; |
| private final ArrayDeque<ProcessRecord> mTmpQueue; |
| private final ArraySet<ProcessRecord> mPendingProcessSet = new ArraySet<>(); |
| private final ArraySet<ProcessRecord> mProcessesInCycle = new ArraySet<>(); |
| |
| /** |
| * Flag to mark if there is an ongoing oomAdjUpdate: potentially the oomAdjUpdate |
| * could be called recursively because of the indirect calls during the update; |
| * however the oomAdjUpdate itself doesn't support recursion - in this case we'd |
| * have to queue up the new targets found during the update, and perform another |
| * round of oomAdjUpdate at the end of last update. |
| */ |
| @GuardedBy("mService") |
| private boolean mOomAdjUpdateOngoing = false; |
| |
| /** |
| * Flag to mark if there is a pending full oomAdjUpdate. |
| */ |
| @GuardedBy("mService") |
| private boolean mPendingFullOomAdjUpdate = false; |
| |
| /** Overrideable by a test */ |
| @VisibleForTesting |
| protected boolean isChangeEnabled(@CachedCompatChangeId int cachedCompatChangeId, |
| ApplicationInfo app, boolean defaultValue) { |
| return PlatformCompatCache.getInstance() |
| .isChangeEnabled(cachedCompatChangeId, app, defaultValue); |
| } |
| |
| OomAdjuster(ActivityManagerService service, ProcessList processList, ActiveUids activeUids) { |
| this(service, processList, activeUids, createAdjusterThread()); |
| } |
| |
| private static ServiceThread createAdjusterThread() { |
| // The process group is usually critical to the response time of foreground app, so the |
| // setter should apply it as soon as possible. |
| final ServiceThread adjusterThread = |
| new ServiceThread(TAG, THREAD_PRIORITY_TOP_APP_BOOST, false /* allowIo */); |
| adjusterThread.start(); |
| return adjusterThread; |
| } |
| |
| OomAdjuster(ActivityManagerService service, ProcessList processList, ActiveUids activeUids, |
| ServiceThread adjusterThread) { |
| mService = service; |
| mProcessList = processList; |
| mProcLock = service.mProcLock; |
| mActiveUids = activeUids; |
| |
| mLocalPowerManager = LocalServices.getService(PowerManagerInternal.class); |
| mConstants = mService.mConstants; |
| mCachedAppOptimizer = new CachedAppOptimizer(mService); |
| mCacheOomRanker = new CacheOomRanker(service); |
| |
| mProcessGroupHandler = new Handler(adjusterThread.getLooper(), msg -> { |
| final int pid = msg.arg1; |
| final int group = msg.arg2; |
| if (pid == ActivityManagerService.MY_PID) { |
| // Skip setting the process group for system_server, keep it as default. |
| return true; |
| } |
| if (Trace.isTagEnabled(Trace.TRACE_TAG_ACTIVITY_MANAGER)) { |
| Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "setProcessGroup " |
| + msg.obj + " to " + group); |
| } |
| try { |
| setProcessGroup(pid, group); |
| } catch (Exception e) { |
| if (DEBUG_ALL) { |
| Slog.w(TAG, "Failed setting process group of " + pid + " to " + group, e); |
| } |
| } finally { |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| } |
| return true; |
| }); |
| mTmpUidRecords = new ActiveUids(service, false); |
| mTmpQueue = new ArrayDeque<ProcessRecord>(mConstants.CUR_MAX_CACHED_PROCESSES << 1); |
| mNumSlots = ((ProcessList.CACHED_APP_MAX_ADJ - ProcessList.CACHED_APP_MIN_ADJ + 1) >> 1) |
| / ProcessList.CACHED_APP_IMPORTANCE_LEVELS; |
| } |
| |
| void initSettings() { |
| mCachedAppOptimizer.init(); |
| mCacheOomRanker.init(ActivityThread.currentApplication().getMainExecutor()); |
| if (mService.mConstants.KEEP_WARMING_SERVICES.size() > 0) { |
| final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_SWITCHED); |
| mService.mContext.registerReceiverForAllUsers(new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| synchronized (mService) { |
| handleUserSwitchedLocked(); |
| } |
| } |
| }, filter, null, mService.mHandler); |
| } |
| } |
| |
| /** |
| * Update the keep-warming service flags upon user switches |
| */ |
| @VisibleForTesting |
| @GuardedBy("mService") |
| void handleUserSwitchedLocked() { |
| mProcessList.forEachLruProcessesLOSP(false, |
| this::updateKeepWarmIfNecessaryForProcessLocked); |
| } |
| |
| @GuardedBy("mService") |
| private void updateKeepWarmIfNecessaryForProcessLocked(final ProcessRecord app) { |
| final ArraySet<ComponentName> warmServices = mService.mConstants.KEEP_WARMING_SERVICES; |
| boolean includeWarmPkg = false; |
| final PackageList pkgList = app.getPkgList(); |
| for (int j = warmServices.size() - 1; j >= 0; j--) { |
| if (pkgList.containsKey(warmServices.valueAt(j).getPackageName())) { |
| includeWarmPkg = true; |
| break; |
| } |
| } |
| if (!includeWarmPkg) { |
| return; |
| } |
| final ProcessServiceRecord psr = app.mServices; |
| for (int j = psr.numberOfRunningServices() - 1; j >= 0; j--) { |
| psr.getRunningServiceAt(j).updateKeepWarmLocked(); |
| } |
| } |
| |
| /** |
| * Perform oom adj update on the given process. It does NOT do the re-computation |
| * if there is a cycle, caller should check {@link #mProcessesInCycle} and do it on its own. |
| */ |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean performUpdateOomAdjLSP(ProcessRecord app, int cachedAdj, |
| ProcessRecord topApp, long now) { |
| if (app.getThread() == null) { |
| return false; |
| } |
| |
| app.mState.resetCachedInfo(); |
| app.mState.setCurBoundByNonBgRestrictedApp(false); |
| UidRecord uidRec = app.getUidRecord(); |
| if (uidRec != null) { |
| if (DEBUG_UID_OBSERVERS) { |
| Slog.i(TAG_UID_OBSERVERS, "Starting update of " + uidRec); |
| } |
| uidRec.reset(); |
| } |
| |
| // Check if this process is in the pending list too, remove from pending list if so. |
| mPendingProcessSet.remove(app); |
| |
| mProcessesInCycle.clear(); |
| computeOomAdjLSP(app, cachedAdj, topApp, false, now, false, true); |
| if (!mProcessesInCycle.isEmpty()) { |
| // We can't use the score here if there is a cycle, abort. |
| for (int i = mProcessesInCycle.size() - 1; i >= 0; i--) { |
| // Reset the adj seq |
| mProcessesInCycle.valueAt(i).mState.setCompletedAdjSeq(mAdjSeq - 1); |
| } |
| return true; |
| } |
| |
| if (uidRec != null) { |
| // After uidRec.reset() above, for UidRecord with multiple processes (ProcessRecord), |
| // we need to apply all ProcessRecord into UidRecord. |
| uidRec.forEachProcess(this::updateAppUidRecIfNecessaryLSP); |
| if (uidRec.getCurProcState() != PROCESS_STATE_NONEXISTENT |
| && (uidRec.getSetProcState() != uidRec.getCurProcState() |
| || uidRec.getSetCapability() != uidRec.getCurCapability() |
| || uidRec.isSetAllowListed() != uidRec.isCurAllowListed())) { |
| ActiveUids uids = mTmpUidRecords; |
| uids.clear(); |
| uids.put(uidRec.getUid(), uidRec); |
| updateUidsLSP(uids, SystemClock.elapsedRealtime()); |
| mProcessList.incrementProcStateSeqAndNotifyAppsLOSP(uids); |
| } |
| } |
| |
| return applyOomAdjLSP(app, false, now, SystemClock.elapsedRealtime()); |
| } |
| |
| /** |
| * Update OomAdj for all processes in LRU list |
| */ |
| @GuardedBy("mService") |
| void updateOomAdjLocked(String oomAdjReason) { |
| synchronized (mProcLock) { |
| updateOomAdjLSP(oomAdjReason); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateOomAdjLSP(String oomAdjReason) { |
| if (checkAndEnqueueOomAdjTargetLocked(null)) { |
| // Simply return as there is an oomAdjUpdate ongoing |
| return; |
| } |
| try { |
| mOomAdjUpdateOngoing = true; |
| performUpdateOomAdjLSP(oomAdjReason); |
| } finally { |
| // Kick off the handling of any pending targets enqueued during the above update |
| mOomAdjUpdateOngoing = false; |
| updateOomAdjPendingTargetsLocked(oomAdjReason); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void performUpdateOomAdjLSP(String oomAdjReason) { |
| final ProcessRecord topApp = mService.getTopApp(); |
| // Clear any pending ones because we are doing a full update now. |
| mPendingProcessSet.clear(); |
| mService.mAppProfiler.mHasPreviousProcess = mService.mAppProfiler.mHasHomeProcess = false; |
| updateOomAdjInnerLSP(oomAdjReason, topApp , null, null, true, true); |
| } |
| |
| /** |
| * Update OomAdj for specific process and its reachable processes (with direction/indirect |
| * bindings from this process); Note its clients' proc state won't be re-evaluated if this proc |
| * is hosting any service/content provider. |
| * |
| * @param app The process to update, or null to update all processes |
| * @param oomAdjReason |
| */ |
| @GuardedBy("mService") |
| boolean updateOomAdjLocked(ProcessRecord app, String oomAdjReason) { |
| synchronized (mProcLock) { |
| return updateOomAdjLSP(app, oomAdjReason); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean updateOomAdjLSP(ProcessRecord app, String oomAdjReason) { |
| if (app == null || !mConstants.OOMADJ_UPDATE_QUICK) { |
| updateOomAdjLSP(oomAdjReason); |
| return true; |
| } |
| |
| if (checkAndEnqueueOomAdjTargetLocked(app)) { |
| // Simply return true as there is an oomAdjUpdate ongoing |
| return true; |
| } |
| |
| try { |
| mOomAdjUpdateOngoing = true; |
| return performUpdateOomAdjLSP(app, oomAdjReason); |
| } finally { |
| // Kick off the handling of any pending targets enqueued during the above update |
| mOomAdjUpdateOngoing = false; |
| updateOomAdjPendingTargetsLocked(oomAdjReason); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean performUpdateOomAdjLSP(ProcessRecord app, String oomAdjReason) { |
| final ProcessRecord topApp = mService.getTopApp(); |
| |
| Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, oomAdjReason); |
| mService.mOomAdjProfiler.oomAdjStarted(); |
| mAdjSeq++; |
| |
| // Firstly, try to see if the importance of itself gets changed |
| final ProcessStateRecord state = app.mState; |
| final boolean wasCached = state.isCached(); |
| final int oldAdj = state.getCurRawAdj(); |
| final int cachedAdj = oldAdj >= ProcessList.CACHED_APP_MIN_ADJ |
| ? oldAdj : ProcessList.UNKNOWN_ADJ; |
| final boolean wasBackground = ActivityManager.isProcStateBackground( |
| state.getSetProcState()); |
| final int oldCap = state.getSetCapability(); |
| state.setContainsCycle(false); |
| state.setProcStateChanged(false); |
| state.resetCachedInfo(); |
| state.setCurBoundByNonBgRestrictedApp(false); |
| // Check if this process is in the pending list too, remove from pending list if so. |
| mPendingProcessSet.remove(app); |
| boolean success = performUpdateOomAdjLSP(app, cachedAdj, topApp, |
| SystemClock.uptimeMillis()); |
| // The 'app' here itself might or might not be in the cycle, for example, |
| // the case A <=> B vs. A -> B <=> C; anyway, if we spot a cycle here, re-compute them. |
| if (!success || (wasCached == state.isCached() && oldAdj != ProcessList.INVALID_ADJ |
| && mProcessesInCycle.isEmpty() /* Force re-compute if there is a cycle */ |
| && oldCap == state.getCurCapability() |
| && wasBackground == ActivityManager.isProcStateBackground( |
| state.getSetProcState()))) { |
| mProcessesInCycle.clear(); |
| // Okay, it's unchanged, it won't impact any service it binds to, we're done here. |
| if (DEBUG_OOM_ADJ) { |
| Slog.i(TAG_OOM_ADJ, "No oomadj changes for " + app); |
| } |
| mService.mOomAdjProfiler.oomAdjEnded(); |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| return success; |
| } |
| |
| // Next to find out all its reachable processes |
| ArrayList<ProcessRecord> processes = mTmpProcessList; |
| ActiveUids uids = mTmpUidRecords; |
| mPendingProcessSet.add(app); |
| |
| // Add all processes with cycles into the list to scan |
| for (int i = mProcessesInCycle.size() - 1; i >= 0; i--) { |
| mPendingProcessSet.add(mProcessesInCycle.valueAt(i)); |
| } |
| mProcessesInCycle.clear(); |
| |
| boolean containsCycle = collectReachableProcessesLocked(mPendingProcessSet, |
| processes, uids); |
| |
| // Clear the pending set as they should've been included in 'processes'. |
| mPendingProcessSet.clear(); |
| |
| if (!containsCycle) { |
| // Reset the flag |
| state.setReachable(false); |
| // Remove this app from the return list because we've done the computation on it. |
| processes.remove(app); |
| } |
| |
| int size = processes.size(); |
| if (size > 0) { |
| mAdjSeq--; |
| // Update these reachable processes |
| updateOomAdjInnerLSP(oomAdjReason, topApp, processes, uids, containsCycle, false); |
| } else if (state.getCurRawAdj() == ProcessList.UNKNOWN_ADJ) { |
| // In case the app goes from non-cached to cached but it doesn't have other reachable |
| // processes, its adj could be still unknown as of now, assign one. |
| processes.add(app); |
| assignCachedAdjIfNecessary(processes); |
| applyOomAdjLSP(app, false, SystemClock.uptimeMillis(), |
| SystemClock.elapsedRealtime()); |
| } |
| mTmpProcessList.clear(); |
| mService.mOomAdjProfiler.oomAdjEnded(); |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| return true; |
| } |
| |
| @GuardedBy("mService") |
| private boolean collectReachableProcessesLocked(ArraySet<ProcessRecord> apps, |
| ArrayList<ProcessRecord> processes, ActiveUids uids) { |
| final ArrayDeque<ProcessRecord> queue = mTmpQueue; |
| queue.clear(); |
| processes.clear(); |
| for (int i = 0, size = apps.size(); i < size; i++) { |
| final ProcessRecord app = apps.valueAt(i); |
| app.mState.setReachable(true); |
| queue.offer(app); |
| } |
| |
| uids.clear(); |
| |
| // Track if any of them reachables could include a cycle |
| boolean containsCycle = false; |
| // Scan downstreams of the process record |
| for (ProcessRecord pr = queue.poll(); pr != null; pr = queue.poll()) { |
| processes.add(pr); |
| final UidRecord uidRec = pr.getUidRecord(); |
| if (uidRec != null) { |
| uids.put(uidRec.getUid(), uidRec); |
| } |
| final ProcessServiceRecord psr = pr.mServices; |
| for (int i = psr.numberOfConnections() - 1; i >= 0; i--) { |
| ConnectionRecord cr = psr.getConnectionAt(i); |
| ProcessRecord service = (cr.flags & ServiceInfo.FLAG_ISOLATED_PROCESS) != 0 |
| ? cr.binding.service.isolationHostProc : cr.binding.service.app; |
| if (service == null || service == pr) { |
| continue; |
| } |
| containsCycle |= service.mState.isReachable(); |
| if (service.mState.isReachable()) { |
| continue; |
| } |
| if ((cr.flags & (Context.BIND_WAIVE_PRIORITY |
| | Context.BIND_TREAT_LIKE_ACTIVITY |
| | Context.BIND_ADJUST_WITH_ACTIVITY)) |
| == Context.BIND_WAIVE_PRIORITY) { |
| continue; |
| } |
| queue.offer(service); |
| service.mState.setReachable(true); |
| } |
| final ProcessProviderRecord ppr = pr.mProviders; |
| for (int i = ppr.numberOfProviderConnections() - 1; i >= 0; i--) { |
| ContentProviderConnection cpc = ppr.getProviderConnectionAt(i); |
| ProcessRecord provider = cpc.provider.proc; |
| if (provider == null || provider == pr) { |
| continue; |
| } |
| containsCycle |= provider.mState.isReachable(); |
| if (provider.mState.isReachable()) { |
| continue; |
| } |
| queue.offer(provider); |
| provider.mState.setReachable(true); |
| } |
| } |
| |
| int size = processes.size(); |
| if (size > 0) { |
| // Reverse the process list, since the updateOomAdjInnerLSP scans from the end of it. |
| for (int l = 0, r = size - 1; l < r; l++, r--) { |
| ProcessRecord t = processes.get(l); |
| processes.set(l, processes.get(r)); |
| processes.set(r, t); |
| } |
| } |
| return containsCycle; |
| } |
| |
| /** |
| * Enqueue the given process for a later oom adj update |
| */ |
| @GuardedBy("mService") |
| void enqueueOomAdjTargetLocked(ProcessRecord app) { |
| if (app != null) { |
| mPendingProcessSet.add(app); |
| } |
| } |
| |
| @GuardedBy("mService") |
| void removeOomAdjTargetLocked(ProcessRecord app, boolean procDied) { |
| if (app != null) { |
| mPendingProcessSet.remove(app); |
| if (procDied) { |
| PlatformCompatCache.getInstance().invalidate(app.info); |
| } |
| } |
| } |
| |
| /** |
| * Check if there is an ongoing oomAdjUpdate, enqueue the given process record |
| * to {@link #mPendingProcessSet} if there is one. |
| * |
| * @param app The target app to get an oomAdjUpdate, or a full oomAdjUpdate if it's null. |
| * @return {@code true} if there is an ongoing oomAdjUpdate. |
| */ |
| @GuardedBy("mService") |
| private boolean checkAndEnqueueOomAdjTargetLocked(@Nullable ProcessRecord app) { |
| if (!mOomAdjUpdateOngoing) { |
| return false; |
| } |
| if (app != null) { |
| mPendingProcessSet.add(app); |
| } else { |
| mPendingFullOomAdjUpdate = true; |
| } |
| return true; |
| } |
| |
| /** |
| * Kick off an oom adj update pass for the pending targets which are enqueued via |
| * {@link #enqueueOomAdjTargetLocked}. |
| */ |
| @GuardedBy("mService") |
| void updateOomAdjPendingTargetsLocked(String oomAdjReason) { |
| // First check if there is pending full update |
| if (mPendingFullOomAdjUpdate) { |
| mPendingFullOomAdjUpdate = false; |
| mPendingProcessSet.clear(); |
| updateOomAdjLocked(oomAdjReason); |
| return; |
| } |
| if (mPendingProcessSet.isEmpty()) { |
| return; |
| } |
| |
| if (mOomAdjUpdateOngoing) { |
| // There's another oomAdjUpdate ongoing, return from here now; |
| // that ongoing update would call us again at the end of it. |
| return; |
| } |
| try { |
| mOomAdjUpdateOngoing = true; |
| performUpdateOomAdjPendingTargetsLocked(oomAdjReason); |
| } finally { |
| // Kick off the handling of any pending targets enqueued during the above update |
| mOomAdjUpdateOngoing = false; |
| updateOomAdjPendingTargetsLocked(oomAdjReason); |
| } |
| } |
| |
| @GuardedBy("mService") |
| private void performUpdateOomAdjPendingTargetsLocked(String oomAdjReason) { |
| final ProcessRecord topApp = mService.getTopApp(); |
| |
| Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, oomAdjReason); |
| mService.mOomAdjProfiler.oomAdjStarted(); |
| |
| final ArrayList<ProcessRecord> processes = mTmpProcessList; |
| final ActiveUids uids = mTmpUidRecords; |
| collectReachableProcessesLocked(mPendingProcessSet, processes, uids); |
| mPendingProcessSet.clear(); |
| synchronized (mProcLock) { |
| updateOomAdjInnerLSP(oomAdjReason, topApp, processes, uids, true, false); |
| } |
| processes.clear(); |
| |
| mService.mOomAdjProfiler.oomAdjEnded(); |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| } |
| |
| /** |
| * Update OomAdj for all processes within the given list (could be partial), or the whole LRU |
| * list if the given list is null; when it's partial update, each process's client proc won't |
| * get evaluated recursively here. |
| */ |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateOomAdjInnerLSP(String oomAdjReason, final ProcessRecord topApp, |
| ArrayList<ProcessRecord> processes, ActiveUids uids, boolean potentialCycles, |
| boolean startProfiling) { |
| if (startProfiling) { |
| Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, oomAdjReason); |
| mService.mOomAdjProfiler.oomAdjStarted(); |
| } |
| final long now = SystemClock.uptimeMillis(); |
| final long nowElapsed = SystemClock.elapsedRealtime(); |
| final long oldTime = now - ProcessList.MAX_EMPTY_TIME; |
| final boolean fullUpdate = processes == null; |
| ActiveUids activeUids = uids; |
| ArrayList<ProcessRecord> activeProcesses = fullUpdate ? mProcessList.getLruProcessesLOSP() |
| : processes; |
| final int numProc = activeProcesses.size(); |
| |
| if (activeUids == null) { |
| final int numUids = mActiveUids.size(); |
| activeUids = mTmpUidRecords; |
| activeUids.clear(); |
| for (int i = 0; i < numUids; i++) { |
| UidRecord uidRec = mActiveUids.valueAt(i); |
| activeUids.put(uidRec.getUid(), uidRec); |
| } |
| } |
| |
| // Reset state in all uid records. |
| for (int i = activeUids.size() - 1; i >= 0; i--) { |
| final UidRecord uidRec = activeUids.valueAt(i); |
| if (DEBUG_UID_OBSERVERS) { |
| Slog.i(TAG_UID_OBSERVERS, "Starting update of " + uidRec); |
| } |
| uidRec.reset(); |
| } |
| |
| mAdjSeq++; |
| if (fullUpdate) { |
| mNewNumServiceProcs = 0; |
| mNewNumAServiceProcs = 0; |
| } |
| |
| boolean retryCycles = false; |
| boolean computeClients = fullUpdate || potentialCycles; |
| |
| // need to reset cycle state before calling computeOomAdjLSP because of service conns |
| for (int i = numProc - 1; i >= 0; i--) { |
| ProcessRecord app = activeProcesses.get(i); |
| final ProcessStateRecord state = app.mState; |
| state.setReachable(false); |
| // No need to compute again it has been evaluated in previous iteration |
| if (state.getAdjSeq() != mAdjSeq) { |
| state.setContainsCycle(false); |
| state.setCurRawProcState(PROCESS_STATE_CACHED_EMPTY); |
| state.setCurRawAdj(ProcessList.UNKNOWN_ADJ); |
| state.setSetCapability(PROCESS_CAPABILITY_NONE); |
| state.resetCachedInfo(); |
| state.setCurBoundByNonBgRestrictedApp(false); |
| } |
| } |
| mProcessesInCycle.clear(); |
| for (int i = numProc - 1; i >= 0; i--) { |
| ProcessRecord app = activeProcesses.get(i); |
| final ProcessStateRecord state = app.mState; |
| if (!app.isKilledByAm() && app.getThread() != null) { |
| state.setProcStateChanged(false); |
| computeOomAdjLSP(app, ProcessList.UNKNOWN_ADJ, topApp, fullUpdate, now, false, |
| computeClients); // It won't enter cycle if not computing clients. |
| // if any app encountered a cycle, we need to perform an additional loop later |
| retryCycles |= state.containsCycle(); |
| // Keep the completedAdjSeq to up to date. |
| state.setCompletedAdjSeq(mAdjSeq); |
| } |
| } |
| |
| if (mCacheOomRanker.useOomReranking()) { |
| mCacheOomRanker.reRankLruCachedAppsLSP(mProcessList.getLruProcessesLSP(), |
| mProcessList.getLruProcessServiceStartLOSP()); |
| } |
| assignCachedAdjIfNecessary(mProcessList.getLruProcessesLOSP()); |
| |
| if (computeClients) { // There won't be cycles if we didn't compute clients above. |
| // Cycle strategy: |
| // - Retry computing any process that has encountered a cycle. |
| // - Continue retrying until no process was promoted. |
| // - Iterate from least important to most important. |
| int cycleCount = 0; |
| while (retryCycles && cycleCount < 10) { |
| cycleCount++; |
| retryCycles = false; |
| |
| for (int i = 0; i < numProc; i++) { |
| ProcessRecord app = activeProcesses.get(i); |
| final ProcessStateRecord state = app.mState; |
| if (!app.isKilledByAm() && app.getThread() != null && state.containsCycle()) { |
| state.decAdjSeq(); |
| state.decCompletedAdjSeq(); |
| } |
| } |
| |
| for (int i = 0; i < numProc; i++) { |
| ProcessRecord app = activeProcesses.get(i); |
| final ProcessStateRecord state = app.mState; |
| if (!app.isKilledByAm() && app.getThread() != null && state.containsCycle()) { |
| if (computeOomAdjLSP(app, state.getCurRawAdj(), topApp, true, now, |
| true, true)) { |
| retryCycles = true; |
| } |
| } |
| } |
| } |
| } |
| mProcessesInCycle.clear(); |
| |
| mNumNonCachedProcs = 0; |
| mNumCachedHiddenProcs = 0; |
| |
| boolean allChanged = updateAndTrimProcessLSP(now, nowElapsed, oldTime, activeUids); |
| mNumServiceProcs = mNewNumServiceProcs; |
| |
| if (mService.mAlwaysFinishActivities) { |
| // Need to do this on its own message because the stack may not |
| // be in a consistent state at this point. |
| mService.mAtmInternal.scheduleDestroyAllActivities("always-finish"); |
| } |
| |
| if (allChanged) { |
| mService.mAppProfiler.requestPssAllProcsLPr(now, false, |
| mService.mProcessStats.isMemFactorLowered()); |
| } |
| |
| updateUidsLSP(activeUids, nowElapsed); |
| |
| synchronized (mService.mProcessStats.mLock) { |
| final long nowUptime = SystemClock.uptimeMillis(); |
| if (mService.mProcessStats.shouldWriteNowLocked(nowUptime)) { |
| mService.mHandler.post(new ActivityManagerService.ProcStatsRunnable(mService, |
| mService.mProcessStats)); |
| } |
| |
| // Run this after making sure all procstates are updated. |
| mService.mProcessStats.updateTrackingAssociationsLocked(mAdjSeq, nowUptime); |
| } |
| |
| if (DEBUG_OOM_ADJ) { |
| final long duration = SystemClock.uptimeMillis() - now; |
| if (false) { |
| Slog.d(TAG_OOM_ADJ, "Did OOM ADJ in " + duration + "ms", |
| new RuntimeException("here").fillInStackTrace()); |
| } else { |
| Slog.d(TAG_OOM_ADJ, "Did OOM ADJ in " + duration + "ms"); |
| } |
| } |
| if (startProfiling) { |
| mService.mOomAdjProfiler.oomAdjEnded(); |
| Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void assignCachedAdjIfNecessary(ArrayList<ProcessRecord> lruList) { |
| final int numLru = lruList.size(); |
| |
| // First update the OOM adjustment for each of the |
| // application processes based on their current state. |
| int curCachedAdj = ProcessList.CACHED_APP_MIN_ADJ; |
| int nextCachedAdj = curCachedAdj + (ProcessList.CACHED_APP_IMPORTANCE_LEVELS * 2); |
| int curCachedImpAdj = 0; |
| int curEmptyAdj = ProcessList.CACHED_APP_MIN_ADJ + ProcessList.CACHED_APP_IMPORTANCE_LEVELS; |
| int nextEmptyAdj = curEmptyAdj + (ProcessList.CACHED_APP_IMPORTANCE_LEVELS * 2); |
| |
| final int emptyProcessLimit = mConstants.CUR_MAX_EMPTY_PROCESSES; |
| final int cachedProcessLimit = mConstants.CUR_MAX_CACHED_PROCESSES |
| - emptyProcessLimit; |
| // Let's determine how many processes we have running vs. |
| // how many slots we have for background processes; we may want |
| // to put multiple processes in a slot of there are enough of |
| // them. |
| int numEmptyProcs = numLru - mNumNonCachedProcs - mNumCachedHiddenProcs; |
| if (numEmptyProcs > cachedProcessLimit) { |
| // If there are more empty processes than our limit on cached |
| // processes, then use the cached process limit for the factor. |
| // This ensures that the really old empty processes get pushed |
| // down to the bottom, so if we are running low on memory we will |
| // have a better chance at keeping around more cached processes |
| // instead of a gazillion empty processes. |
| numEmptyProcs = cachedProcessLimit; |
| } |
| int cachedFactor = (mNumCachedHiddenProcs > 0 ? (mNumCachedHiddenProcs + mNumSlots - 1) : 1) |
| / mNumSlots; |
| if (cachedFactor < 1) cachedFactor = 1; |
| |
| int emptyFactor = (numEmptyProcs + mNumSlots - 1) / mNumSlots; |
| if (emptyFactor < 1) emptyFactor = 1; |
| |
| int stepCached = -1; |
| int stepEmpty = -1; |
| int lastCachedGroup = 0; |
| int lastCachedGroupImportance = 0; |
| int lastCachedGroupUid = 0; |
| |
| for (int i = numLru - 1; i >= 0; i--) { |
| ProcessRecord app = lruList.get(i); |
| final ProcessStateRecord state = app.mState; |
| // If we haven't yet assigned the final cached adj |
| // to the process, do that now. |
| if (!app.isKilledByAm() && app.getThread() != null && state.getCurAdj() |
| >= ProcessList.UNKNOWN_ADJ) { |
| final ProcessServiceRecord psr = app.mServices; |
| switch (state.getCurProcState()) { |
| case PROCESS_STATE_CACHED_ACTIVITY: |
| case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT: |
| case ActivityManager.PROCESS_STATE_CACHED_RECENT: |
| // Figure out the next cached level, taking into account groups. |
| boolean inGroup = false; |
| final int connectionGroup = psr.getConnectionGroup(); |
| if (connectionGroup != 0) { |
| final int connectionImportance = psr.getConnectionImportance(); |
| if (lastCachedGroupUid == app.uid |
| && lastCachedGroup == connectionGroup) { |
| // This is in the same group as the last process, just tweak |
| // adjustment by importance. |
| if (connectionImportance > lastCachedGroupImportance) { |
| lastCachedGroupImportance = connectionImportance; |
| if (curCachedAdj < nextCachedAdj |
| && curCachedAdj < ProcessList.CACHED_APP_MAX_ADJ) { |
| curCachedImpAdj++; |
| } |
| } |
| inGroup = true; |
| } else { |
| lastCachedGroupUid = app.uid; |
| lastCachedGroup = connectionGroup; |
| lastCachedGroupImportance = connectionImportance; |
| } |
| } |
| if (!inGroup && curCachedAdj != nextCachedAdj) { |
| stepCached++; |
| curCachedImpAdj = 0; |
| if (stepCached >= cachedFactor) { |
| stepCached = 0; |
| curCachedAdj = nextCachedAdj; |
| nextCachedAdj += ProcessList.CACHED_APP_IMPORTANCE_LEVELS * 2; |
| if (nextCachedAdj > ProcessList.CACHED_APP_MAX_ADJ) { |
| nextCachedAdj = ProcessList.CACHED_APP_MAX_ADJ; |
| } |
| } |
| } |
| // This process is a cached process holding activities... |
| // assign it the next cached value for that type, and then |
| // step that cached level. |
| state.setCurRawAdj(curCachedAdj + curCachedImpAdj); |
| state.setCurAdj(psr.modifyRawOomAdj(curCachedAdj + curCachedImpAdj)); |
| if (DEBUG_LRU) { |
| Slog.d(TAG_LRU, "Assigning activity LRU #" + i |
| + " adj: " + state.getCurAdj() |
| + " (curCachedAdj=" + curCachedAdj |
| + " curCachedImpAdj=" + curCachedImpAdj + ")"); |
| } |
| break; |
| default: |
| // Figure out the next cached level. |
| if (curEmptyAdj != nextEmptyAdj) { |
| stepEmpty++; |
| if (stepEmpty >= emptyFactor) { |
| stepEmpty = 0; |
| curEmptyAdj = nextEmptyAdj; |
| nextEmptyAdj += ProcessList.CACHED_APP_IMPORTANCE_LEVELS * 2; |
| if (nextEmptyAdj > ProcessList.CACHED_APP_MAX_ADJ) { |
| nextEmptyAdj = ProcessList.CACHED_APP_MAX_ADJ; |
| } |
| } |
| } |
| // For everything else, assign next empty cached process |
| // level and bump that up. Note that this means that |
| // long-running services that have dropped down to the |
| // cached level will be treated as empty (since their process |
| // state is still as a service), which is what we want. |
| state.setCurRawAdj(curEmptyAdj); |
| state.setCurAdj(psr.modifyRawOomAdj(curEmptyAdj)); |
| if (DEBUG_LRU) { |
| Slog.d(TAG_LRU, "Assigning empty LRU #" + i |
| + " adj: " + state.getCurAdj() + " (curEmptyAdj=" + curEmptyAdj |
| + ")"); |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean updateAndTrimProcessLSP(final long now, final long nowElapsed, |
| final long oldTime, final ActiveUids activeUids) { |
| ArrayList<ProcessRecord> lruList = mProcessList.getLruProcessesLOSP(); |
| final int numLru = lruList.size(); |
| |
| final int emptyProcessLimit = mConstants.CUR_MAX_EMPTY_PROCESSES; |
| final int cachedProcessLimit = mConstants.CUR_MAX_CACHED_PROCESSES |
| - emptyProcessLimit; |
| int lastCachedGroup = 0; |
| int lastCachedGroupUid = 0; |
| int numCached = 0; |
| int numCachedExtraGroup = 0; |
| int numEmpty = 0; |
| int numTrimming = 0; |
| |
| for (int i = numLru - 1; i >= 0; i--) { |
| ProcessRecord app = lruList.get(i); |
| final ProcessStateRecord state = app.mState; |
| if (!app.isKilledByAm() && app.getThread() != null) { |
| // We don't need to apply the update for the process which didn't get computed |
| if (state.getCompletedAdjSeq() == mAdjSeq) { |
| applyOomAdjLSP(app, true, now, nowElapsed); |
| } |
| |
| final ProcessServiceRecord psr = app.mServices; |
| // Count the number of process types. |
| switch (state.getCurProcState()) { |
| case PROCESS_STATE_CACHED_ACTIVITY: |
| case ActivityManager.PROCESS_STATE_CACHED_ACTIVITY_CLIENT: |
| mNumCachedHiddenProcs++; |
| numCached++; |
| final int connectionGroup = psr.getConnectionGroup(); |
| if (connectionGroup != 0) { |
| if (lastCachedGroupUid == app.info.uid |
| && lastCachedGroup == connectionGroup) { |
| // If this process is the next in the same group, we don't |
| // want it to count against our limit of the number of cached |
| // processes, so bump up the group count to account for it. |
| numCachedExtraGroup++; |
| } else { |
| lastCachedGroupUid = app.info.uid; |
| lastCachedGroup = connectionGroup; |
| } |
| } else { |
| lastCachedGroupUid = lastCachedGroup = 0; |
| } |
| if ((numCached - numCachedExtraGroup) > cachedProcessLimit) { |
| app.killLocked("cached #" + numCached, |
| "too many cached", |
| ApplicationExitInfo.REASON_OTHER, |
| ApplicationExitInfo.SUBREASON_TOO_MANY_CACHED, |
| true); |
| } |
| break; |
| case PROCESS_STATE_CACHED_EMPTY: |
| if (numEmpty > mConstants.CUR_TRIM_EMPTY_PROCESSES |
| && app.getLastActivityTime() < oldTime) { |
| app.killLocked("empty for " + ((oldTime + ProcessList.MAX_EMPTY_TIME |
| - app.getLastActivityTime()) / 1000) + "s", |
| "empty for too long", |
| ApplicationExitInfo.REASON_OTHER, |
| ApplicationExitInfo.SUBREASON_TRIM_EMPTY, |
| true); |
| } else { |
| numEmpty++; |
| if (numEmpty > emptyProcessLimit) { |
| app.killLocked("empty #" + numEmpty, |
| "too many empty", |
| ApplicationExitInfo.REASON_OTHER, |
| ApplicationExitInfo.SUBREASON_TOO_MANY_EMPTY, |
| true); |
| } |
| } |
| break; |
| default: |
| mNumNonCachedProcs++; |
| break; |
| } |
| |
| if (app.isolated && psr.numberOfRunningServices() <= 0 |
| && app.getIsolatedEntryPoint() == null) { |
| // If this is an isolated process, there are no services |
| // running in it, and it's not a special process with a |
| // custom entry point, then the process is no longer |
| // needed. We agressively kill these because we can by |
| // definition not re-use the same process again, and it is |
| // good to avoid having whatever code was running in them |
| // left sitting around after no longer needed. |
| app.killLocked("isolated not needed", ApplicationExitInfo.REASON_OTHER, |
| ApplicationExitInfo.SUBREASON_ISOLATED_NOT_NEEDED, true); |
| } else { |
| // Keeping this process, update its uid. |
| updateAppUidRecLSP(app); |
| } |
| |
| if (state.getCurProcState() >= ActivityManager.PROCESS_STATE_HOME |
| && !app.isKilledByAm()) { |
| numTrimming++; |
| } |
| } |
| } |
| |
| mProcessList.incrementProcStateSeqAndNotifyAppsLOSP(activeUids); |
| |
| return mService.mAppProfiler.updateLowMemStateLSP(numCached, numEmpty, numTrimming); |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateAppUidRecIfNecessaryLSP(final ProcessRecord app) { |
| if (!app.isKilledByAm() && app.getThread() != null) { |
| if (app.isolated && app.mServices.numberOfRunningServices() <= 0 |
| && app.getIsolatedEntryPoint() == null) { |
| // No op. |
| } else { |
| // Keeping this process, update its uid. |
| updateAppUidRecLSP(app); |
| } |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateAppUidRecLSP(ProcessRecord app) { |
| final UidRecord uidRec = app.getUidRecord(); |
| if (uidRec != null) { |
| final ProcessStateRecord state = app.mState; |
| uidRec.setEphemeral(app.info.isInstantApp()); |
| if (uidRec.getCurProcState() > state.getCurProcState()) { |
| uidRec.setCurProcState(state.getCurProcState()); |
| } |
| if (app.mServices.hasForegroundServices()) { |
| uidRec.setForegroundServices(true); |
| } |
| uidRec.setCurCapability(uidRec.getCurCapability() | state.getCurCapability()); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateUidsLSP(ActiveUids activeUids, final long nowElapsed) { |
| ArrayList<UidRecord> becameIdle = mTmpBecameIdle; |
| becameIdle.clear(); |
| |
| // Update from any uid changes. |
| if (mLocalPowerManager != null) { |
| mLocalPowerManager.startUidChanges(); |
| } |
| for (int i = activeUids.size() - 1; i >= 0; i--) { |
| final UidRecord uidRec = activeUids.valueAt(i); |
| int uidChange = UidRecord.CHANGE_PROCSTATE; |
| if (uidRec.getCurProcState() != PROCESS_STATE_NONEXISTENT |
| && (uidRec.getSetProcState() != uidRec.getCurProcState() |
| || uidRec.getSetCapability() != uidRec.getCurCapability() |
| || uidRec.isSetAllowListed() != uidRec.isCurAllowListed())) { |
| if (DEBUG_UID_OBSERVERS) Slog.i(TAG_UID_OBSERVERS, "Changes in " + uidRec |
| + ": proc state from " + uidRec.getSetProcState() + " to " |
| + uidRec.getCurProcState() + ", capability from " |
| + uidRec.getSetCapability() + " to " + uidRec.getCurCapability() |
| + ", allowlist from " + uidRec.isSetAllowListed() |
| + " to " + uidRec.isCurAllowListed()); |
| if (ActivityManager.isProcStateBackground(uidRec.getCurProcState()) |
| && !uidRec.isCurAllowListed()) { |
| // UID is now in the background (and not on the temp allowlist). Was it |
| // previously in the foreground (or on the temp allowlist)? |
| if (!ActivityManager.isProcStateBackground(uidRec.getSetProcState()) |
| || uidRec.isSetAllowListed()) { |
| uidRec.setLastBackgroundTime(nowElapsed); |
| if (!mService.mHandler.hasMessages(IDLE_UIDS_MSG)) { |
| // Note: the background settle time is in elapsed realtime, while |
| // the handler time base is uptime. All this means is that we may |
| // stop background uids later than we had intended, but that only |
| // happens because the device was sleeping so we are okay anyway. |
| mService.mHandler.sendEmptyMessageDelayed(IDLE_UIDS_MSG, |
| mConstants.BACKGROUND_SETTLE_TIME); |
| } |
| } |
| if (uidRec.isIdle() && !uidRec.isSetIdle()) { |
| uidChange = UidRecord.CHANGE_IDLE; |
| becameIdle.add(uidRec); |
| } |
| } else { |
| if (uidRec.isIdle()) { |
| uidChange = UidRecord.CHANGE_ACTIVE; |
| EventLogTags.writeAmUidActive(uidRec.getUid()); |
| uidRec.setIdle(false); |
| } |
| uidRec.setLastBackgroundTime(0); |
| } |
| final boolean wasCached = uidRec.getSetProcState() |
| > ActivityManager.PROCESS_STATE_RECEIVER; |
| final boolean isCached = uidRec.getCurProcState() |
| > ActivityManager.PROCESS_STATE_RECEIVER; |
| if (wasCached != isCached |
| || uidRec.getSetProcState() == PROCESS_STATE_NONEXISTENT) { |
| uidChange |= isCached ? UidRecord.CHANGE_CACHED : UidRecord.CHANGE_UNCACHED; |
| } |
| if (uidRec.getSetCapability() != uidRec.getCurCapability()) { |
| uidChange |= UidRecord.CHANGE_CAPABILITY; |
| } |
| uidRec.setSetProcState(uidRec.getCurProcState()); |
| uidRec.setSetCapability(uidRec.getCurCapability()); |
| uidRec.setSetAllowListed(uidRec.isCurAllowListed()); |
| uidRec.setSetIdle(uidRec.isIdle()); |
| mService.mAtmInternal.onUidProcStateChanged( |
| uidRec.getUid(), uidRec.getSetProcState()); |
| mService.enqueueUidChangeLocked(uidRec, -1, uidChange); |
| mService.noteUidProcessState(uidRec.getUid(), uidRec.getCurProcState(), |
| uidRec.getCurCapability()); |
| if (uidRec.hasForegroundServices()) { |
| mService.mServices.foregroundServiceProcStateChangedLocked(uidRec); |
| } |
| } |
| mService.mInternal.deletePendingTopUid(uidRec.getUid()); |
| } |
| if (mLocalPowerManager != null) { |
| mLocalPowerManager.finishUidChanges(); |
| } |
| |
| int size = becameIdle.size(); |
| if (size > 0) { |
| // If we have any new uids that became idle this time, we need to make sure |
| // they aren't left with running services. |
| for (int i = size - 1; i >= 0; i--) { |
| mService.mServices.stopInBackgroundLocked(becameIdle.get(i).getUid()); |
| } |
| } |
| } |
| |
| private final ComputeOomAdjWindowCallback mTmpComputeOomAdjWindowCallback = |
| new ComputeOomAdjWindowCallback(); |
| |
| /** These methods are called inline during computeOomAdjLSP(), on the same thread */ |
| final class ComputeOomAdjWindowCallback |
| implements WindowProcessController.ComputeOomAdjCallback { |
| |
| ProcessRecord app; |
| int adj; |
| boolean foregroundActivities; |
| boolean mHasVisibleActivities; |
| int procState; |
| int schedGroup; |
| int appUid; |
| int logUid; |
| int processStateCurTop; |
| ProcessStateRecord mState; |
| |
| void initialize(ProcessRecord app, int adj, boolean foregroundActivities, |
| boolean hasVisibleActivities, int procState, int schedGroup, int appUid, |
| int logUid, int processStateCurTop) { |
| this.app = app; |
| this.adj = adj; |
| this.foregroundActivities = foregroundActivities; |
| this.mHasVisibleActivities = hasVisibleActivities; |
| this.procState = procState; |
| this.schedGroup = schedGroup; |
| this.appUid = appUid; |
| this.logUid = logUid; |
| this.processStateCurTop = processStateCurTop; |
| this.mState = app.mState; |
| } |
| |
| @Override |
| public void onVisibleActivity() { |
| // App has a visible activity; only upgrade adjustment. |
| if (adj > ProcessList.VISIBLE_APP_ADJ) { |
| adj = ProcessList.VISIBLE_APP_ADJ; |
| mState.setAdjType("vis-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to vis-activity: " + app); |
| } |
| } |
| if (procState > processStateCurTop) { |
| procState = processStateCurTop; |
| mState.setAdjType("vis-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to vis-activity (top): " + app); |
| } |
| } |
| if (schedGroup < ProcessList.SCHED_GROUP_DEFAULT) { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| mState.setCached(false); |
| mState.setEmpty(false); |
| foregroundActivities = true; |
| mHasVisibleActivities = true; |
| } |
| |
| @Override |
| public void onPausedActivity() { |
| if (adj > ProcessList.PERCEPTIBLE_APP_ADJ) { |
| adj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| mState.setAdjType("pause-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to pause-activity: " + app); |
| } |
| } |
| if (procState > processStateCurTop) { |
| procState = processStateCurTop; |
| mState.setAdjType("pause-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to pause-activity (top): " + app); |
| } |
| } |
| if (schedGroup < ProcessList.SCHED_GROUP_DEFAULT) { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| mState.setCached(false); |
| mState.setEmpty(false); |
| foregroundActivities = true; |
| mHasVisibleActivities = false; |
| } |
| |
| @Override |
| public void onStoppingActivity(boolean finishing) { |
| if (adj > ProcessList.PERCEPTIBLE_APP_ADJ) { |
| adj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| mState.setAdjType("stop-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise adj to stop-activity: " + app); |
| } |
| } |
| |
| // For the process state, we will at this point consider the process to be cached. It |
| // will be cached either as an activity or empty depending on whether the activity is |
| // finishing. We do this so that we can treat the process as cached for purposes of |
| // memory trimming (determining current memory level, trim command to send to process) |
| // since there can be an arbitrary number of stopping processes and they should soon all |
| // go into the cached state. |
| if (!finishing) { |
| if (procState > PROCESS_STATE_LAST_ACTIVITY) { |
| procState = PROCESS_STATE_LAST_ACTIVITY; |
| mState.setAdjType("stop-activity"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to stop-activity: " + app); |
| } |
| } |
| } |
| mState.setCached(false); |
| mState.setEmpty(false); |
| foregroundActivities = true; |
| mHasVisibleActivities = false; |
| } |
| |
| @Override |
| public void onOtherActivity() { |
| if (procState > PROCESS_STATE_CACHED_ACTIVITY) { |
| procState = PROCESS_STATE_CACHED_ACTIVITY; |
| mState.setAdjType("cch-act"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to cached activity: " + app); |
| } |
| } |
| mHasVisibleActivities = false; |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean computeOomAdjLSP(ProcessRecord app, int cachedAdj, |
| ProcessRecord topApp, boolean doingAll, long now, boolean cycleReEval, |
| boolean computeClients) { |
| final ProcessStateRecord state = app.mState; |
| if (mAdjSeq == state.getAdjSeq()) { |
| if (state.getAdjSeq() == state.getCompletedAdjSeq()) { |
| // This adjustment has already been computed successfully. |
| return false; |
| } else { |
| // The process is being computed, so there is a cycle. We cannot |
| // rely on this process's state. |
| state.setContainsCycle(true); |
| mProcessesInCycle.add(app); |
| |
| return false; |
| } |
| } |
| |
| if (app.getThread() == null) { |
| state.setAdjSeq(mAdjSeq); |
| state.setCurrentSchedulingGroup(ProcessList.SCHED_GROUP_BACKGROUND); |
| state.setCurProcState(PROCESS_STATE_CACHED_EMPTY); |
| state.setCurAdj(ProcessList.CACHED_APP_MAX_ADJ); |
| state.setCurRawAdj(ProcessList.CACHED_APP_MAX_ADJ); |
| state.setCompletedAdjSeq(state.getAdjSeq()); |
| state.setCurCapability(PROCESS_CAPABILITY_NONE); |
| return false; |
| } |
| |
| state.setAdjTypeCode(ActivityManager.RunningAppProcessInfo.REASON_UNKNOWN); |
| state.setAdjSource(null); |
| state.setAdjTarget(null); |
| state.setEmpty(false); |
| state.setCached(false); |
| state.resetAllowStartFgsState(); |
| if (!cycleReEval) { |
| // Don't reset this flag when doing cycles re-evaluation. |
| state.setNoKillOnBgRestrictedAndIdle(false); |
| app.mOptRecord.setShouldNotFreeze(false); |
| } |
| |
| final int appUid = app.info.uid; |
| final int logUid = mService.mCurOomAdjUid; |
| |
| int prevAppAdj = state.getCurAdj(); |
| int prevProcState = state.getCurProcState(); |
| int prevCapability = state.getCurCapability(); |
| final ProcessServiceRecord psr = app.mServices; |
| |
| if (state.getMaxAdj() <= ProcessList.FOREGROUND_APP_ADJ) { |
| // The max adjustment doesn't allow this app to be anything |
| // below foreground, so it is not worth doing work for it. |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making fixed: " + app); |
| } |
| state.setAdjType("fixed"); |
| state.setAdjSeq(mAdjSeq); |
| state.setCurRawAdj(state.getMaxAdj()); |
| state.setHasForegroundActivities(false); |
| state.setCurrentSchedulingGroup(ProcessList.SCHED_GROUP_DEFAULT); |
| state.setCurCapability(PROCESS_CAPABILITY_ALL); |
| state.setCurProcState(ActivityManager.PROCESS_STATE_PERSISTENT); |
| // System processes can do UI, and when they do we want to have |
| // them trim their memory after the user leaves the UI. To |
| // facilitate this, here we need to determine whether or not it |
| // is currently showing UI. |
| state.setSystemNoUi(true); |
| if (app == topApp) { |
| state.setSystemNoUi(false); |
| state.setCurrentSchedulingGroup(ProcessList.SCHED_GROUP_TOP_APP); |
| state.setAdjType("pers-top-activity"); |
| } else if (state.hasTopUi()) { |
| // sched group/proc state adjustment is below |
| state.setSystemNoUi(false); |
| state.setAdjType("pers-top-ui"); |
| } else if (state.getCachedHasVisibleActivities()) { |
| state.setSystemNoUi(false); |
| } |
| if (!state.isSystemNoUi()) { |
| if (mService.mWakefulness.get() == PowerManagerInternal.WAKEFULNESS_AWAKE |
| || state.isRunningRemoteAnimation()) { |
| // screen on or animating, promote UI |
| state.setCurProcState(ActivityManager.PROCESS_STATE_PERSISTENT_UI); |
| state.setCurrentSchedulingGroup(ProcessList.SCHED_GROUP_TOP_APP); |
| } else { |
| // screen off, restrict UI scheduling |
| state.setCurProcState(PROCESS_STATE_BOUND_FOREGROUND_SERVICE); |
| state.setCurrentSchedulingGroup(ProcessList.SCHED_GROUP_RESTRICTED); |
| } |
| } |
| state.setCurRawProcState(state.getCurProcState()); |
| state.setCurAdj(state.getMaxAdj()); |
| state.setCompletedAdjSeq(state.getAdjSeq()); |
| state.bumpAllowStartFgsState(state.getCurProcState()); |
| // if curAdj is less than prevAppAdj, then this process was promoted |
| return state.getCurAdj() < prevAppAdj || state.getCurProcState() < prevProcState; |
| } |
| |
| state.setSystemNoUi(false); |
| |
| final int PROCESS_STATE_CUR_TOP = mService.mAtmInternal.getTopProcessState(); |
| |
| // Determine the importance of the process, starting with most |
| // important to least, and assign an appropriate OOM adjustment. |
| int adj; |
| int schedGroup; |
| int procState; |
| int capability = cycleReEval ? app.mState.getCurCapability() : 0; |
| |
| boolean foregroundActivities = false; |
| boolean hasVisibleActivities = false; |
| if (PROCESS_STATE_CUR_TOP == PROCESS_STATE_TOP && app == topApp) { |
| // The last app on the list is the foreground app. |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_TOP_APP; |
| state.setAdjType("top-activity"); |
| foregroundActivities = true; |
| hasVisibleActivities = true; |
| procState = PROCESS_STATE_CUR_TOP; |
| state.bumpAllowStartFgsState(PROCESS_STATE_TOP); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making top: " + app); |
| } |
| } else if (state.isRunningRemoteAnimation()) { |
| adj = ProcessList.VISIBLE_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_TOP_APP; |
| state.setAdjType("running-remote-anim"); |
| procState = PROCESS_STATE_CUR_TOP; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making running remote anim: " + app); |
| } |
| } else if (app.getActiveInstrumentation() != null) { |
| // Don't want to kill running instrumentation. |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| state.setAdjType("instrumentation"); |
| procState = PROCESS_STATE_FOREGROUND_SERVICE; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making instrumentation: " + app); |
| } |
| } else if (state.getCachedIsReceivingBroadcast(mTmpBroadcastQueue)) { |
| // An app that is currently receiving a broadcast also |
| // counts as being in the foreground for OOM killer purposes. |
| // It's placed in a sched group based on the nature of the |
| // broadcast as reflected by which queue it's active in. |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| schedGroup = (mTmpBroadcastQueue.contains(mService.mFgBroadcastQueue)) |
| ? ProcessList.SCHED_GROUP_DEFAULT : ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setAdjType("broadcast"); |
| procState = ActivityManager.PROCESS_STATE_RECEIVER; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making broadcast: " + app); |
| } |
| } else if (psr.numberOfExecutingServices() > 0) { |
| // An app that is currently executing a service callback also |
| // counts as being in the foreground. |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| schedGroup = psr.shouldExecServicesFg() |
| ? ProcessList.SCHED_GROUP_DEFAULT : ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setAdjType("exec-service"); |
| procState = PROCESS_STATE_SERVICE; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making exec-service: " + app); |
| } |
| } else if (app == topApp) { |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setAdjType("top-sleeping"); |
| foregroundActivities = true; |
| procState = PROCESS_STATE_CUR_TOP; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making top (sleeping): " + app); |
| } |
| } else { |
| // As far as we know the process is empty. We may change our mind later. |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| // At this point we don't actually know the adjustment. Use the cached adj |
| // value that the caller wants us to. |
| adj = cachedAdj; |
| procState = PROCESS_STATE_CACHED_EMPTY; |
| if (!state.containsCycle()) { |
| state.setCached(true); |
| state.setEmpty(true); |
| state.setAdjType("cch-empty"); |
| } |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Making empty: " + app); |
| } |
| } |
| |
| // Examine all activities if not already foreground. |
| if (!foregroundActivities && state.getCachedHasActivities()) { |
| state.computeOomAdjFromActivitiesIfNecessary(mTmpComputeOomAdjWindowCallback, |
| adj, foregroundActivities, hasVisibleActivities, procState, schedGroup, |
| appUid, logUid, PROCESS_STATE_CUR_TOP); |
| |
| adj = state.getCachedAdj(); |
| foregroundActivities = state.getCachedForegroundActivities(); |
| hasVisibleActivities = state.getCachedHasVisibleActivities(); |
| procState = state.getCachedProcState(); |
| schedGroup = state.getCachedSchedGroup(); |
| } |
| |
| if (procState > PROCESS_STATE_CACHED_RECENT && state.getCachedHasRecentTasks()) { |
| procState = PROCESS_STATE_CACHED_RECENT; |
| state.setAdjType("cch-rec"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise procstate to cached recent: " + app); |
| } |
| } |
| |
| if (adj > ProcessList.PERCEPTIBLE_APP_ADJ |
| || procState > PROCESS_STATE_FOREGROUND_SERVICE) { |
| if (psr.hasForegroundServices()) { |
| // The user is aware of this app, so make it visible. |
| adj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| procState = PROCESS_STATE_FOREGROUND_SERVICE; |
| state.bumpAllowStartFgsState(PROCESS_STATE_FOREGROUND_SERVICE); |
| state.setAdjType("fg-service"); |
| state.setCached(false); |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to " + state.getAdjType() + ": " |
| + app + " "); |
| } |
| } else if (state.hasOverlayUi()) { |
| // The process is display an overlay UI. |
| adj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| procState = PROCESS_STATE_IMPORTANT_FOREGROUND; |
| state.setCached(false); |
| state.setAdjType("has-overlay-ui"); |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to overlay ui: " + app); |
| } |
| } |
| } |
| |
| // If the app was recently in the foreground and moved to a foreground service status, |
| // allow it to get a higher rank in memory for some time, compared to other foreground |
| // services so that it can finish performing any persistence/processing of in-memory state. |
| if (psr.hasForegroundServices() && adj > ProcessList.PERCEPTIBLE_RECENT_FOREGROUND_APP_ADJ |
| && (state.getLastTopTime() + mConstants.TOP_TO_FGS_GRACE_DURATION > now |
| || state.getSetProcState() <= PROCESS_STATE_TOP)) { |
| adj = ProcessList.PERCEPTIBLE_RECENT_FOREGROUND_APP_ADJ; |
| state.setAdjType("fg-service-act"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to recent fg: " + app); |
| } |
| } |
| |
| if (adj > ProcessList.PERCEPTIBLE_APP_ADJ |
| || procState > PROCESS_STATE_TRANSIENT_BACKGROUND) { |
| if (state.getForcingToImportant() != null) { |
| // This is currently used for toasts... they are not interactive, and |
| // we don't want them to cause the app to become fully foreground (and |
| // thus out of background check), so we yes the best background level we can. |
| adj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| procState = PROCESS_STATE_TRANSIENT_BACKGROUND; |
| state.setCached(false); |
| state.setAdjType("force-imp"); |
| state.setAdjSource(state.getForcingToImportant()); |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to force imp: " + app); |
| } |
| } |
| } |
| |
| if (state.getCachedIsHeavyWeight()) { |
| if (adj > ProcessList.HEAVY_WEIGHT_APP_ADJ) { |
| // We don't want to kill the current heavy-weight process. |
| adj = ProcessList.HEAVY_WEIGHT_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setCached(false); |
| state.setAdjType("heavy"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to heavy: " + app); |
| } |
| } |
| if (procState > ActivityManager.PROCESS_STATE_HEAVY_WEIGHT) { |
| procState = ActivityManager.PROCESS_STATE_HEAVY_WEIGHT; |
| state.setAdjType("heavy"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise procstate to heavy: " + app); |
| } |
| } |
| } |
| |
| if (state.getCachedIsHomeProcess()) { |
| if (adj > ProcessList.HOME_APP_ADJ) { |
| // This process is hosting what we currently consider to be the |
| // home app, so we don't want to let it go into the background. |
| adj = ProcessList.HOME_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setCached(false); |
| state.setAdjType("home"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to home: " + app); |
| } |
| } |
| if (procState > ActivityManager.PROCESS_STATE_HOME) { |
| procState = ActivityManager.PROCESS_STATE_HOME; |
| state.setAdjType("home"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise procstate to home: " + app); |
| } |
| } |
| } |
| |
| if (state.getCachedIsPreviousProcess() && state.getCachedHasActivities()) { |
| if (adj > ProcessList.PREVIOUS_APP_ADJ) { |
| // This was the previous process that showed UI to the user. |
| // We want to try to keep it around more aggressively, to give |
| // a good experience around switching between two apps. |
| adj = ProcessList.PREVIOUS_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setCached(false); |
| state.setAdjType("previous"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to prev: " + app); |
| } |
| } |
| if (procState > PROCESS_STATE_LAST_ACTIVITY) { |
| procState = PROCESS_STATE_LAST_ACTIVITY; |
| state.setAdjType("previous"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise procstate to prev: " + app); |
| } |
| } |
| } |
| |
| if (false) Slog.i(TAG, "OOM " + app + ": initial adj=" + adj |
| + " reason=" + state.getAdjType()); |
| |
| // By default, we use the computed adjustment. It may be changed if |
| // there are applications dependent on our services or providers, but |
| // this gives us a baseline and makes sure we don't get into an |
| // infinite recursion. If we're re-evaluating due to cycles, use the previously computed |
| // values. |
| if (cycleReEval) { |
| procState = Math.min(procState, state.getCurRawProcState()); |
| adj = Math.min(adj, state.getCurRawAdj()); |
| schedGroup = Math.max(schedGroup, state.getCurrentSchedulingGroup()); |
| } |
| state.setCurRawAdj(adj); |
| state.setCurRawProcState(procState); |
| |
| state.setHasStartedServices(false); |
| state.setAdjSeq(mAdjSeq); |
| |
| final BackupRecord backupTarget = mService.mBackupTargets.get(app.userId); |
| if (backupTarget != null && app == backupTarget.app) { |
| // If possible we want to avoid killing apps while they're being backed up |
| if (adj > ProcessList.BACKUP_APP_ADJ) { |
| if (DEBUG_BACKUP) Slog.v(TAG_BACKUP, "oom BACKUP_APP_ADJ for " + app); |
| adj = ProcessList.BACKUP_APP_ADJ; |
| if (procState > PROCESS_STATE_TRANSIENT_BACKGROUND) { |
| procState = PROCESS_STATE_TRANSIENT_BACKGROUND; |
| } |
| state.setAdjType("backup"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise adj to backup: " + app); |
| } |
| state.setCached(false); |
| } |
| if (procState > ActivityManager.PROCESS_STATE_BACKUP) { |
| procState = ActivityManager.PROCESS_STATE_BACKUP; |
| state.setAdjType("backup"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise procstate to backup: " + app); |
| } |
| } |
| } |
| |
| int capabilityFromFGS = 0; // capability from foreground service. |
| boolean boundByNonBgRestricted = state.isCurBoundByNonBgRestrictedApp(); |
| boolean scheduleLikeTopApp = false; |
| for (int is = psr.numberOfRunningServices() - 1; |
| is >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ |
| || schedGroup == ProcessList.SCHED_GROUP_BACKGROUND |
| || procState > PROCESS_STATE_TOP); |
| is--) { |
| ServiceRecord s = psr.getRunningServiceAt(is); |
| if (s.startRequested) { |
| state.setHasStartedServices(true); |
| if (procState > PROCESS_STATE_SERVICE) { |
| procState = PROCESS_STATE_SERVICE; |
| state.setAdjType("started-services"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to started service: " + app); |
| } |
| } |
| if (!s.mKeepWarming && state.hasShownUi() && !state.getCachedIsHomeProcess()) { |
| // If this process has shown some UI, let it immediately |
| // go to the LRU list because it may be pretty heavy with |
| // UI stuff. We'll tag it with a label just to help |
| // debug and understand what is going on. |
| if (adj > ProcessList.SERVICE_ADJ) { |
| state.setAdjType("cch-started-ui-services"); |
| } |
| } else { |
| if (s.mKeepWarming |
| || now < (s.lastActivity + mConstants.MAX_SERVICE_INACTIVITY)) { |
| // This service has seen some activity within |
| // recent memory, so we will keep its process ahead |
| // of the background processes. |
| if (adj > ProcessList.SERVICE_ADJ) { |
| adj = ProcessList.SERVICE_ADJ; |
| state.setAdjType("started-services"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise adj to started service: " + app); |
| } |
| state.setCached(false); |
| } |
| } |
| // If we have let the service slide into the background |
| // state, still have some text describing what it is doing |
| // even though the service no longer has an impact. |
| if (adj > ProcessList.SERVICE_ADJ) { |
| state.setAdjType("cch-started-services"); |
| } |
| } |
| } |
| |
| if (s.isForeground) { |
| final int fgsType = s.foregroundServiceType; |
| if (s.mAllowWhileInUsePermissionInFgs) { |
| capabilityFromFGS |= |
| (fgsType & FOREGROUND_SERVICE_TYPE_LOCATION) |
| != 0 ? PROCESS_CAPABILITY_FOREGROUND_LOCATION : 0; |
| |
| final boolean enabled = state.getCachedCompatChange( |
| CACHED_COMPAT_CHANGE_CAMERA_MICROPHONE_CAPABILITY); |
| if (enabled) { |
| capabilityFromFGS |= |
| (fgsType & FOREGROUND_SERVICE_TYPE_CAMERA) |
| != 0 ? PROCESS_CAPABILITY_FOREGROUND_CAMERA : 0; |
| capabilityFromFGS |= |
| (fgsType & FOREGROUND_SERVICE_TYPE_MICROPHONE) |
| != 0 ? PROCESS_CAPABILITY_FOREGROUND_MICROPHONE : 0; |
| } else { |
| capabilityFromFGS |= PROCESS_CAPABILITY_FOREGROUND_CAMERA |
| | PROCESS_CAPABILITY_FOREGROUND_MICROPHONE; |
| } |
| } |
| } |
| |
| ArrayMap<IBinder, ArrayList<ConnectionRecord>> serviceConnections = s.getConnections(); |
| for (int conni = serviceConnections.size() - 1; |
| conni >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ |
| || schedGroup == ProcessList.SCHED_GROUP_BACKGROUND |
| || procState > PROCESS_STATE_TOP); |
| conni--) { |
| ArrayList<ConnectionRecord> clist = serviceConnections.valueAt(conni); |
| for (int i = 0; |
| i < clist.size() && (adj > ProcessList.FOREGROUND_APP_ADJ |
| || schedGroup == ProcessList.SCHED_GROUP_BACKGROUND |
| || procState > PROCESS_STATE_TOP); |
| i++) { |
| // XXX should compute this based on the max of |
| // all connected clients. |
| ConnectionRecord cr = clist.get(i); |
| if (cr.binding.client == app) { |
| // Binding to oneself is not interesting. |
| continue; |
| } |
| |
| boolean trackedProcState = false; |
| |
| ProcessRecord client = cr.binding.client; |
| final ProcessStateRecord cstate = client.mState; |
| if (computeClients) { |
| computeOomAdjLSP(client, cachedAdj, topApp, doingAll, now, |
| cycleReEval, true); |
| } else { |
| cstate.setCurRawAdj(cstate.getCurAdj()); |
| cstate.setCurRawProcState(cstate.getCurProcState()); |
| } |
| |
| int clientAdj = cstate.getCurRawAdj(); |
| int clientProcState = cstate.getCurRawProcState(); |
| |
| final boolean clientIsSystem = clientProcState < PROCESS_STATE_TOP; |
| |
| boundByNonBgRestricted |= cstate.isCurBoundByNonBgRestrictedApp() |
| || clientProcState <= PROCESS_STATE_BOUND_TOP |
| || (clientProcState == PROCESS_STATE_FOREGROUND_SERVICE |
| && !cstate.isBackgroundRestricted()); |
| |
| if (client.mOptRecord.shouldNotFreeze()) { |
| // Propagate the shouldNotFreeze flag down the bindings. |
| app.mOptRecord.setShouldNotFreeze(true); |
| } |
| |
| if ((cr.flags & Context.BIND_WAIVE_PRIORITY) == 0) { |
| if (cr.hasFlag(Context.BIND_INCLUDE_CAPABILITIES)) { |
| capability |= cstate.getCurCapability(); |
| } |
| |
| // If an app has network capability by default |
| // (by having procstate <= BFGS), then the apps it binds to will get |
| // elevated to a high enough procstate anyway to get network unless they |
| // request otherwise, so don't propagate the network capability by default |
| // in this case unless they explicitly request it. |
| if ((cstate.getCurCapability() & PROCESS_CAPABILITY_NETWORK) != 0) { |
| if (clientProcState <= PROCESS_STATE_BOUND_FOREGROUND_SERVICE) { |
| if ((cr.flags & Context.BIND_BYPASS_POWER_NETWORK_RESTRICTIONS) |
| != 0) { |
| capability |= PROCESS_CAPABILITY_NETWORK; |
| } |
| } else { |
| capability |= PROCESS_CAPABILITY_NETWORK; |
| } |
| } |
| |
| if (shouldSkipDueToCycle(app, cstate, procState, adj, cycleReEval)) { |
| continue; |
| } |
| |
| if (clientProcState >= PROCESS_STATE_CACHED_ACTIVITY) { |
| // If the other app is cached for any reason, for purposes here |
| // we are going to consider it empty. The specific cached state |
| // doesn't propagate except under certain conditions. |
| clientProcState = PROCESS_STATE_CACHED_EMPTY; |
| } |
| String adjType = null; |
| if ((cr.flags&Context.BIND_ALLOW_OOM_MANAGEMENT) != 0) { |
| // Similar to BIND_WAIVE_PRIORITY, keep it unfrozen. |
| if (clientAdj < ProcessList.CACHED_APP_MIN_ADJ) { |
| app.mOptRecord.setShouldNotFreeze(true); |
| } |
| // Not doing bind OOM management, so treat |
| // this guy more like a started service. |
| if (state.hasShownUi() && !state.getCachedIsHomeProcess()) { |
| // If this process has shown some UI, let it immediately |
| // go to the LRU list because it may be pretty heavy with |
| // UI stuff. We'll tag it with a label just to help |
| // debug and understand what is going on. |
| if (adj > clientAdj) { |
| adjType = "cch-bound-ui-services"; |
| } |
| state.setCached(false); |
| clientAdj = adj; |
| clientProcState = procState; |
| } else { |
| if (now >= (s.lastActivity |
| + mConstants.MAX_SERVICE_INACTIVITY)) { |
| // This service has not seen activity within |
| // recent memory, so allow it to drop to the |
| // LRU list if there is no other reason to keep |
| // it around. We'll also tag it with a label just |
| // to help debug and undertand what is going on. |
| if (adj > clientAdj) { |
| adjType = "cch-bound-services"; |
| } |
| clientAdj = adj; |
| } |
| } |
| } |
| if (adj > clientAdj) { |
| // If this process has recently shown UI, and |
| // the process that is binding to it is less |
| // important than being visible, then we don't |
| // care about the binding as much as we care |
| // about letting this process get into the LRU |
| // list to be killed and restarted if needed for |
| // memory. |
| if (state.hasShownUi() && !state.getCachedIsHomeProcess() |
| && clientAdj > ProcessList.PERCEPTIBLE_APP_ADJ) { |
| if (adj >= ProcessList.CACHED_APP_MIN_ADJ) { |
| adjType = "cch-bound-ui-services"; |
| } |
| } else { |
| int newAdj; |
| if ((cr.flags&(Context.BIND_ABOVE_CLIENT |
| |Context.BIND_IMPORTANT)) != 0) { |
| if (clientAdj >= ProcessList.PERSISTENT_SERVICE_ADJ) { |
| newAdj = clientAdj; |
| } else { |
| // make this service persistent |
| newAdj = ProcessList.PERSISTENT_SERVICE_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| procState = ActivityManager.PROCESS_STATE_PERSISTENT; |
| cr.trackProcState(procState, mAdjSeq); |
| trackedProcState = true; |
| } |
| } else if ((cr.flags & Context.BIND_NOT_PERCEPTIBLE) != 0 |
| && clientAdj <= ProcessList.PERCEPTIBLE_APP_ADJ |
| && adj >= ProcessList.PERCEPTIBLE_LOW_APP_ADJ) { |
| newAdj = ProcessList.PERCEPTIBLE_LOW_APP_ADJ; |
| } else if ((cr.flags & Context.BIND_ALMOST_PERCEPTIBLE) != 0 |
| && clientAdj < ProcessList.PERCEPTIBLE_APP_ADJ |
| && adj >= ProcessList.PERCEPTIBLE_MEDIUM_APP_ADJ) { |
| newAdj = ProcessList.PERCEPTIBLE_MEDIUM_APP_ADJ; |
| } else if ((cr.flags&Context.BIND_NOT_VISIBLE) != 0 |
| && clientAdj < ProcessList.PERCEPTIBLE_APP_ADJ |
| && adj >= ProcessList.PERCEPTIBLE_APP_ADJ) { |
| newAdj = ProcessList.PERCEPTIBLE_APP_ADJ; |
| } else if (clientAdj >= ProcessList.PERCEPTIBLE_APP_ADJ) { |
| newAdj = clientAdj; |
| } else { |
| if (adj > ProcessList.VISIBLE_APP_ADJ) { |
| // TODO: Is this too limiting for apps bound from TOP? |
| newAdj = Math.max(clientAdj, ProcessList.VISIBLE_APP_ADJ); |
| } else { |
| newAdj = adj; |
| } |
| } |
| if (!cstate.isCached()) { |
| state.setCached(false); |
| } |
| if (adj > newAdj) { |
| adj = newAdj; |
| state.setCurRawAdj(adj); |
| adjType = "service"; |
| } |
| } |
| } |
| if ((cr.flags & (Context.BIND_NOT_FOREGROUND |
| | Context.BIND_IMPORTANT_BACKGROUND)) == 0) { |
| // This will treat important bound services identically to |
| // the top app, which may behave differently than generic |
| // foreground work. |
| final int curSchedGroup = cstate.getCurrentSchedulingGroup(); |
| if (curSchedGroup > schedGroup) { |
| if ((cr.flags&Context.BIND_IMPORTANT) != 0) { |
| schedGroup = curSchedGroup; |
| } else { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| } |
| if (clientProcState < PROCESS_STATE_TOP) { |
| // Special handling for above-top states (persistent |
| // processes). These should not bring the current process |
| // into the top state, since they are not on top. Instead |
| // give them the best bound state after that. |
| if (cr.hasFlag(Context.BIND_FOREGROUND_SERVICE)) { |
| clientProcState = PROCESS_STATE_BOUND_FOREGROUND_SERVICE; |
| state.bumpAllowStartFgsState( |
| PROCESS_STATE_BOUND_FOREGROUND_SERVICE); |
| } else if (mService.mWakefulness.get() |
| == PowerManagerInternal.WAKEFULNESS_AWAKE |
| && (cr.flags & Context.BIND_FOREGROUND_SERVICE_WHILE_AWAKE) |
| != 0) { |
| clientProcState = PROCESS_STATE_BOUND_FOREGROUND_SERVICE; |
| } else { |
| clientProcState = |
| PROCESS_STATE_IMPORTANT_FOREGROUND; |
| } |
| } else if (clientProcState == PROCESS_STATE_TOP) { |
| // Go at most to BOUND_TOP, unless requested to elevate |
| // to client's state. |
| clientProcState = PROCESS_STATE_BOUND_TOP; |
| state.bumpAllowStartFgsState(PROCESS_STATE_BOUND_TOP); |
| final boolean enabled = cstate.getCachedCompatChange( |
| CACHED_COMPAT_CHANGE_PROCESS_CAPABILITY); |
| if (enabled) { |
| if (cr.hasFlag(Context.BIND_INCLUDE_CAPABILITIES)) { |
| // TOP process passes all capabilities to the service. |
| capability |= cstate.getCurCapability(); |
| } else { |
| // TOP process passes no capability to the service. |
| } |
| } else { |
| // TOP process passes all capabilities to the service. |
| capability |= cstate.getCurCapability(); |
| } |
| } |
| } else if ((cr.flags & Context.BIND_IMPORTANT_BACKGROUND) == 0) { |
| if (clientProcState < |
| PROCESS_STATE_TRANSIENT_BACKGROUND) { |
| clientProcState = |
| PROCESS_STATE_TRANSIENT_BACKGROUND; |
| } |
| } else { |
| if (clientProcState < |
| PROCESS_STATE_IMPORTANT_BACKGROUND) { |
| clientProcState = |
| PROCESS_STATE_IMPORTANT_BACKGROUND; |
| } |
| } |
| |
| if (schedGroup < ProcessList.SCHED_GROUP_TOP_APP |
| && (cr.flags & Context.BIND_SCHEDULE_LIKE_TOP_APP) != 0 |
| && clientIsSystem) { |
| schedGroup = ProcessList.SCHED_GROUP_TOP_APP; |
| scheduleLikeTopApp = true; |
| } |
| |
| if (!trackedProcState) { |
| cr.trackProcState(clientProcState, mAdjSeq); |
| } |
| |
| if (procState > clientProcState) { |
| procState = clientProcState; |
| state.setCurRawProcState(procState); |
| if (adjType == null) { |
| adjType = "service"; |
| } |
| } |
| if (procState < PROCESS_STATE_IMPORTANT_BACKGROUND |
| && (cr.flags & Context.BIND_SHOWING_UI) != 0) { |
| app.setPendingUiClean(true); |
| } |
| if (adjType != null) { |
| state.setAdjType(adjType); |
| state.setAdjTypeCode(ActivityManager.RunningAppProcessInfo |
| .REASON_SERVICE_IN_USE); |
| state.setAdjSource(cr.binding.client); |
| state.setAdjSourceProcState(clientProcState); |
| state.setAdjTarget(s.instanceName); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to " + adjType |
| + ": " + app + ", due to " + cr.binding.client |
| + " adj=" + adj + " procState=" |
| + ProcessList.makeProcStateString(procState)); |
| } |
| } |
| } else { // BIND_WAIVE_PRIORITY == true |
| // BIND_WAIVE_PRIORITY bindings are special when it comes to the |
| // freezer. Processes bound via WPRI are expected to be running, |
| // but they are not promoted in the LRU list to keep them out of |
| // cached. As a result, they can freeze based on oom_adj alone. |
| // Normally, bindToDeath would fire when a cached app would die |
| // in the background, but nothing will fire when a running process |
| // pings a frozen process. Accordingly, any cached app that is |
| // bound by an unfrozen app via a WPRI binding has to remain |
| // unfrozen. |
| if (clientAdj < ProcessList.CACHED_APP_MIN_ADJ) { |
| app.mOptRecord.setShouldNotFreeze(true); |
| } |
| } |
| if ((cr.flags&Context.BIND_TREAT_LIKE_ACTIVITY) != 0) { |
| psr.setTreatLikeActivity(true); |
| } |
| final ActivityServiceConnectionsHolder a = cr.activity; |
| if ((cr.flags&Context.BIND_ADJUST_WITH_ACTIVITY) != 0) { |
| if (a != null && adj > ProcessList.FOREGROUND_APP_ADJ |
| && a.isActivityVisible()) { |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| state.setCurRawAdj(adj); |
| if ((cr.flags&Context.BIND_NOT_FOREGROUND) == 0) { |
| if ((cr.flags&Context.BIND_IMPORTANT) != 0) { |
| schedGroup = ProcessList.SCHED_GROUP_TOP_APP_BOUND; |
| } else { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| } |
| state.setCached(false); |
| state.setAdjType("service"); |
| state.setAdjTypeCode(ActivityManager.RunningAppProcessInfo |
| .REASON_SERVICE_IN_USE); |
| state.setAdjSource(a); |
| state.setAdjSourceProcState(procState); |
| state.setAdjTarget(s.instanceName); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise to service w/activity: " + app); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| final ProcessProviderRecord ppr = app.mProviders; |
| for (int provi = ppr.numberOfProviders() - 1; |
| provi >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ |
| || schedGroup == ProcessList.SCHED_GROUP_BACKGROUND |
| || procState > PROCESS_STATE_TOP); |
| provi--) { |
| ContentProviderRecord cpr = ppr.getProviderAt(provi); |
| for (int i = cpr.connections.size() - 1; |
| i >= 0 && (adj > ProcessList.FOREGROUND_APP_ADJ |
| || schedGroup == ProcessList.SCHED_GROUP_BACKGROUND |
| || procState > PROCESS_STATE_TOP); |
| i--) { |
| ContentProviderConnection conn = cpr.connections.get(i); |
| ProcessRecord client = conn.client; |
| final ProcessStateRecord cstate = client.mState; |
| if (client == app) { |
| // Being our own client is not interesting. |
| continue; |
| } |
| if (computeClients) { |
| computeOomAdjLSP(client, cachedAdj, topApp, doingAll, now, cycleReEval, true); |
| } else { |
| cstate.setCurRawAdj(cstate.getCurAdj()); |
| cstate.setCurRawProcState(cstate.getCurProcState()); |
| } |
| |
| if (shouldSkipDueToCycle(app, cstate, procState, adj, cycleReEval)) { |
| continue; |
| } |
| |
| int clientAdj = cstate.getCurRawAdj(); |
| int clientProcState = cstate.getCurRawProcState(); |
| |
| if (clientProcState >= PROCESS_STATE_CACHED_ACTIVITY) { |
| // If the other app is cached for any reason, for purposes here |
| // we are going to consider it empty. |
| clientProcState = PROCESS_STATE_CACHED_EMPTY; |
| } |
| if (client.mOptRecord.shouldNotFreeze()) { |
| // Propagate the shouldNotFreeze flag down the bindings. |
| app.mOptRecord.setShouldNotFreeze(true); |
| } |
| |
| boundByNonBgRestricted |= cstate.isCurBoundByNonBgRestrictedApp() |
| || clientProcState <= PROCESS_STATE_BOUND_TOP |
| || (clientProcState == PROCESS_STATE_FOREGROUND_SERVICE |
| && !cstate.isBackgroundRestricted()); |
| |
| String adjType = null; |
| if (adj > clientAdj) { |
| if (state.hasShownUi() && !state.getCachedIsHomeProcess() |
| && clientAdj > ProcessList.PERCEPTIBLE_APP_ADJ) { |
| adjType = "cch-ui-provider"; |
| } else { |
| adj = clientAdj > ProcessList.FOREGROUND_APP_ADJ |
| ? clientAdj : ProcessList.FOREGROUND_APP_ADJ; |
| state.setCurRawAdj(adj); |
| adjType = "provider"; |
| } |
| state.setCached(state.isCached() & cstate.isCached()); |
| } |
| |
| if (clientProcState <= PROCESS_STATE_FOREGROUND_SERVICE) { |
| if (adjType == null) { |
| adjType = "provider"; |
| } |
| if (clientProcState == PROCESS_STATE_TOP) { |
| clientProcState = PROCESS_STATE_BOUND_TOP; |
| } else { |
| clientProcState = PROCESS_STATE_BOUND_FOREGROUND_SERVICE; |
| } |
| } |
| |
| conn.trackProcState(clientProcState, mAdjSeq); |
| if (procState > clientProcState) { |
| procState = clientProcState; |
| state.setCurRawProcState(procState); |
| } |
| if (cstate.getCurrentSchedulingGroup() > schedGroup) { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| if (adjType != null) { |
| state.setAdjType(adjType); |
| state.setAdjTypeCode(ActivityManager.RunningAppProcessInfo |
| .REASON_PROVIDER_IN_USE); |
| state.setAdjSource(client); |
| state.setAdjSourceProcState(clientProcState); |
| state.setAdjTarget(cpr.name); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, "Raise to " + adjType |
| + ": " + app + ", due to " + client |
| + " adj=" + adj + " procState=" |
| + ProcessList.makeProcStateString(procState)); |
| } |
| } |
| } |
| // If the provider has external (non-framework) process |
| // dependencies, ensure that its adjustment is at least |
| // FOREGROUND_APP_ADJ. |
| if (cpr.hasExternalProcessHandles()) { |
| if (adj > ProcessList.FOREGROUND_APP_ADJ) { |
| adj = ProcessList.FOREGROUND_APP_ADJ; |
| state.setCurRawAdj(adj); |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| state.setCached(false); |
| state.setAdjType("ext-provider"); |
| state.setAdjTarget(cpr.name); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise adj to external provider: " + app); |
| } |
| } |
| if (procState > PROCESS_STATE_IMPORTANT_FOREGROUND) { |
| procState = PROCESS_STATE_IMPORTANT_FOREGROUND; |
| state.setCurRawProcState(procState); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to external provider: " + app); |
| } |
| } |
| } |
| } |
| |
| if (ppr.getLastProviderTime() > 0 |
| && (ppr.getLastProviderTime() + mConstants.CONTENT_PROVIDER_RETAIN_TIME) > now) { |
| if (adj > ProcessList.PREVIOUS_APP_ADJ) { |
| adj = ProcessList.PREVIOUS_APP_ADJ; |
| schedGroup = ProcessList.SCHED_GROUP_BACKGROUND; |
| state.setCached(false); |
| state.setAdjType("recent-provider"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise adj to recent provider: " + app); |
| } |
| } |
| if (procState > PROCESS_STATE_LAST_ACTIVITY) { |
| procState = PROCESS_STATE_LAST_ACTIVITY; |
| state.setAdjType("recent-provider"); |
| if (DEBUG_OOM_ADJ_REASON || logUid == appUid) { |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, |
| "Raise procstate to recent provider: " + app); |
| } |
| } |
| } |
| |
| if (procState >= PROCESS_STATE_CACHED_EMPTY) { |
| if (psr.hasClientActivities()) { |
| // This is a cached process, but with client activities. Mark it so. |
| procState = PROCESS_STATE_CACHED_ACTIVITY_CLIENT; |
| state.setAdjType("cch-client-act"); |
| } else if (psr.isTreatedLikeActivity()) { |
| // This is a cached process, but somebody wants us to treat it like it has |
| // an activity, okay! |
| procState = PROCESS_STATE_CACHED_ACTIVITY; |
| state.setAdjType("cch-as-act"); |
| } |
| } |
| |
| if (adj == ProcessList.SERVICE_ADJ) { |
| if (doingAll && !cycleReEval) { |
| state.setServiceB(mNewNumAServiceProcs > (mNumServiceProcs / 3)); |
| mNewNumServiceProcs++; |
| if (!state.isServiceB()) { |
| // This service isn't far enough down on the LRU list to |
| // normally be a B service, but if we are low on RAM and it |
| // is large we want to force it down since we would prefer to |
| // keep launcher over it. |
| if (!mService.mAppProfiler.isLastMemoryLevelNormal() |
| && app.mProfile.getLastPss() |
| >= mProcessList.getCachedRestoreThresholdKb()) { |
| state.setServiceHighRam(true); |
| state.setServiceB(true); |
| //Slog.i(TAG, "ADJ " + app + " high ram!"); |
| } else { |
| mNewNumAServiceProcs++; |
| //Slog.i(TAG, "ADJ " + app + " not high ram!"); |
| } |
| } else { |
| state.setServiceHighRam(false); |
| } |
| } |
| if (state.isServiceB()) { |
| adj = ProcessList.SERVICE_B_ADJ; |
| } |
| } |
| |
| state.setCurRawAdj(adj); |
| |
| if (adj > state.getMaxAdj()) { |
| adj = state.getMaxAdj(); |
| if (adj <= ProcessList.PERCEPTIBLE_LOW_APP_ADJ) { |
| schedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| } |
| } |
| |
| // Put bound foreground services in a special sched group for additional |
| // restrictions on screen off |
| if (procState >= PROCESS_STATE_BOUND_FOREGROUND_SERVICE |
| && mService.mWakefulness.get() != PowerManagerInternal.WAKEFULNESS_AWAKE |
| && !scheduleLikeTopApp) { |
| if (schedGroup > ProcessList.SCHED_GROUP_RESTRICTED) { |
| schedGroup = ProcessList.SCHED_GROUP_RESTRICTED; |
| } |
| } |
| |
| // apply capability from FGS. |
| if (psr.hasForegroundServices()) { |
| capability |= capabilityFromFGS; |
| } |
| |
| capability |= getDefaultCapability(psr, procState); |
| |
| // Do final modification to adj. Everything we do between here and applying |
| // the final setAdj must be done in this function, because we will also use |
| // it when computing the final cached adj later. Note that we don't need to |
| // worry about this for max adj above, since max adj will always be used to |
| // keep it out of the cached vaues. |
| state.setCurAdj(psr.modifyRawOomAdj(adj)); |
| state.setCurCapability(capability); |
| state.setCurrentSchedulingGroup(schedGroup); |
| state.setCurProcState(procState); |
| state.setCurRawProcState(procState); |
| state.updateLastInvisibleTime(hasVisibleActivities); |
| state.setHasForegroundActivities(foregroundActivities); |
| state.setCompletedAdjSeq(mAdjSeq); |
| state.setCurBoundByNonBgRestrictedApp(boundByNonBgRestricted); |
| |
| // if curAdj or curProcState improved, then this process was promoted |
| return state.getCurAdj() < prevAppAdj || state.getCurProcState() < prevProcState |
| || state.getCurCapability() != prevCapability; |
| } |
| |
| private int getDefaultCapability(ProcessServiceRecord psr, int procState) { |
| switch (procState) { |
| case PROCESS_STATE_PERSISTENT: |
| case PROCESS_STATE_PERSISTENT_UI: |
| case PROCESS_STATE_TOP: |
| return PROCESS_CAPABILITY_ALL; |
| case PROCESS_STATE_BOUND_TOP: |
| return PROCESS_CAPABILITY_NETWORK; |
| case PROCESS_STATE_FOREGROUND_SERVICE: |
| if (psr.hasForegroundServices()) { |
| // Capability from FGS are conditional depending on foreground service type in |
| // manifest file and the mAllowWhileInUsePermissionInFgs flag. |
| return PROCESS_CAPABILITY_NETWORK; |
| } else { |
| // process has no FGS, the PROCESS_STATE_FOREGROUND_SERVICE is from client. |
| // the implicit capability could be removed in the future, client should use |
| // BIND_INCLUDE_CAPABILITY flag. |
| return PROCESS_CAPABILITY_ALL_IMPLICIT | PROCESS_CAPABILITY_NETWORK; |
| } |
| case PROCESS_STATE_BOUND_FOREGROUND_SERVICE: |
| return PROCESS_CAPABILITY_NETWORK; |
| default: |
| return PROCESS_CAPABILITY_NONE; |
| } |
| } |
| |
| /** |
| * Checks if for the given app and client, there's a cycle that should skip over the client |
| * for now or use partial values to evaluate the effect of the client binding. |
| * @param app |
| * @param client |
| * @param procState procstate evaluated so far for this app |
| * @param adj oom_adj evaluated so far for this app |
| * @param cycleReEval whether we're currently re-evaluating due to a cycle, and not the first |
| * evaluation. |
| * @return whether to skip using the client connection at this time |
| */ |
| private boolean shouldSkipDueToCycle(ProcessRecord app, ProcessStateRecord client, |
| int procState, int adj, boolean cycleReEval) { |
| if (client.containsCycle()) { |
| // We've detected a cycle. We should retry computeOomAdjLSP later in |
| // case a later-checked connection from a client would raise its |
| // priority legitimately. |
| app.mState.setContainsCycle(true); |
| mProcessesInCycle.add(app); |
| // If the client has not been completely evaluated, check if it's worth |
| // using the partial values. |
| if (client.getCompletedAdjSeq() < mAdjSeq) { |
| if (cycleReEval) { |
| // If the partial values are no better, skip until the next |
| // attempt |
| if (client.getCurRawProcState() >= procState |
| && client.getCurRawAdj() >= adj) { |
| return true; |
| } |
| // Else use the client's partial procstate and adj to adjust the |
| // effect of the binding |
| } else { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** Inform the oomadj observer of changes to oomadj. Used by tests. */ |
| @GuardedBy("mService") |
| private void reportOomAdjMessageLocked(String tag, String msg) { |
| Slog.d(tag, msg); |
| synchronized (mService.mOomAdjObserverLock) { |
| if (mService.mCurOomAdjObserver != null) { |
| mService.mUiHandler.obtainMessage(DISPATCH_OOM_ADJ_OBSERVER_MSG, msg) |
| .sendToTarget(); |
| } |
| } |
| } |
| |
| void onWakefulnessChanged(int wakefulness) { |
| mCachedAppOptimizer.onWakefulnessChanged(wakefulness); |
| } |
| |
| /** Applies the computed oomadj, procstate and sched group values and freezes them in set* */ |
| @GuardedBy({"mService", "mProcLock"}) |
| private boolean applyOomAdjLSP(ProcessRecord app, boolean doingAll, long now, |
| long nowElapsed) { |
| boolean success = true; |
| final ProcessStateRecord state = app.mState; |
| |
| if (state.getCurRawAdj() != state.getSetRawAdj()) { |
| state.setSetRawAdj(state.getCurRawAdj()); |
| } |
| |
| int changes = 0; |
| |
| // don't compact during bootup |
| if (mCachedAppOptimizer.useCompaction() && mService.mBooted) { |
| // Cached and prev/home compaction |
| // reminder: here, setAdj is previous state, curAdj is upcoming state |
| if (state.getCurAdj() != state.getSetAdj()) { |
| mCachedAppOptimizer.onOomAdjustChanged(state.getSetAdj(), state.getCurAdj(), app); |
| } else if (mService.mWakefulness.get() != PowerManagerInternal.WAKEFULNESS_AWAKE |
| && state.getSetAdj() < ProcessList.FOREGROUND_APP_ADJ |
| && !state.isRunningRemoteAnimation() |
| // Because these can fire independent of oom_adj/procstate changes, we need |
| // to throttle the actual dispatch of these requests in addition to the |
| // processing of the requests. As a result, there is throttling both here |
| // and in CachedAppOptimizer. |
| && mCachedAppOptimizer.shouldCompactPersistent(app, now)) { |
| mCachedAppOptimizer.compactAppPersistent(app); |
| } else if (mService.mWakefulness.get() != PowerManagerInternal.WAKEFULNESS_AWAKE |
| && state.getCurProcState() |
| == ActivityManager.PROCESS_STATE_BOUND_FOREGROUND_SERVICE |
| && mCachedAppOptimizer.shouldCompactBFGS(app, now)) { |
| mCachedAppOptimizer.compactAppBfgs(app); |
| } |
| } |
| |
| if (state.getCurAdj() != state.getSetAdj()) { |
| ProcessList.setOomAdj(app.getPid(), app.uid, state.getCurAdj()); |
| if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mService.mCurOomAdjUid == app.info.uid) { |
| String msg = "Set " + app.getPid() + " " + app.processName + " adj " |
| + state.getCurAdj() + ": " + state.getAdjType(); |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, msg); |
| } |
| state.setSetAdj(state.getCurAdj()); |
| state.setVerifiedAdj(ProcessList.INVALID_ADJ); |
| } |
| |
| final int curSchedGroup = state.getCurrentSchedulingGroup(); |
| if (state.getSetSchedGroup() != curSchedGroup) { |
| int oldSchedGroup = state.getSetSchedGroup(); |
| state.setSetSchedGroup(curSchedGroup); |
| if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mService.mCurOomAdjUid == app.uid) { |
| String msg = "Setting sched group of " + app.processName |
| + " to " + curSchedGroup + ": " + state.getAdjType(); |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, msg); |
| } |
| if (app.getWaitingToKill() != null && app.mReceivers.numberOfCurReceivers() == 0 |
| && state.getSetSchedGroup() == ProcessList.SCHED_GROUP_BACKGROUND) { |
| app.killLocked(app.getWaitingToKill(), ApplicationExitInfo.REASON_USER_REQUESTED, |
| ApplicationExitInfo.SUBREASON_REMOVE_TASK, true); |
| success = false; |
| } else { |
| int processGroup; |
| switch (curSchedGroup) { |
| case ProcessList.SCHED_GROUP_BACKGROUND: |
| processGroup = THREAD_GROUP_BACKGROUND; |
| break; |
| case ProcessList.SCHED_GROUP_TOP_APP: |
| case ProcessList.SCHED_GROUP_TOP_APP_BOUND: |
| processGroup = THREAD_GROUP_TOP_APP; |
| break; |
| case ProcessList.SCHED_GROUP_RESTRICTED: |
| processGroup = THREAD_GROUP_RESTRICTED; |
| break; |
| default: |
| processGroup = THREAD_GROUP_DEFAULT; |
| break; |
| } |
| mProcessGroupHandler.sendMessage(mProcessGroupHandler.obtainMessage( |
| 0 /* unused */, app.getPid(), processGroup, app.processName)); |
| try { |
| final int renderThreadTid = app.getRenderThreadTid(); |
| if (curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) { |
| // do nothing if we already switched to RT |
| if (oldSchedGroup != ProcessList.SCHED_GROUP_TOP_APP) { |
| app.getWindowProcessController().onTopProcChanged(); |
| if (mService.mUseFifoUiScheduling) { |
| // Switch UI pipeline for app to SCHED_FIFO |
| state.setSavedPriority(Process.getThreadPriority(app.getPid())); |
| mService.scheduleAsFifoPriority(app.getPid(), true); |
| if (renderThreadTid != 0) { |
| mService.scheduleAsFifoPriority(renderThreadTid, |
| /* suppressLogs */true); |
| if (DEBUG_OOM_ADJ) { |
| Slog.d("UI_FIFO", "Set RenderThread (TID " + |
| renderThreadTid + ") to FIFO"); |
| } |
| } else { |
| if (DEBUG_OOM_ADJ) { |
| Slog.d("UI_FIFO", "Not setting RenderThread TID"); |
| } |
| } |
| } else { |
| // Boost priority for top app UI and render threads |
| setThreadPriority(app.getPid(), THREAD_PRIORITY_TOP_APP_BOOST); |
| if (renderThreadTid != 0) { |
| try { |
| setThreadPriority(renderThreadTid, |
| THREAD_PRIORITY_TOP_APP_BOOST); |
| } catch (IllegalArgumentException e) { |
| // thread died, ignore |
| } |
| } |
| } |
| } |
| } else if (oldSchedGroup == ProcessList.SCHED_GROUP_TOP_APP && |
| curSchedGroup != ProcessList.SCHED_GROUP_TOP_APP) { |
| app.getWindowProcessController().onTopProcChanged(); |
| if (mService.mUseFifoUiScheduling) { |
| try { |
| // Reset UI pipeline to SCHED_OTHER |
| setThreadScheduler(app.getPid(), SCHED_OTHER, 0); |
| setThreadPriority(app.getPid(), state.getSavedPriority()); |
| if (renderThreadTid != 0) { |
| setThreadScheduler(renderThreadTid, |
| SCHED_OTHER, 0); |
| } |
| } catch (IllegalArgumentException e) { |
| Slog.w(TAG, |
| "Failed to set scheduling policy, thread does not exist:\n" |
| + e); |
| } catch (SecurityException e) { |
| Slog.w(TAG, "Failed to set scheduling policy, not allowed:\n" + e); |
| } |
| } else { |
| // Reset priority for top app UI and render threads |
| setThreadPriority(app.getPid(), 0); |
| } |
| |
| if (renderThreadTid != 0) { |
| setThreadPriority(renderThreadTid, THREAD_PRIORITY_DISPLAY); |
| } |
| } |
| } catch (Exception e) { |
| if (DEBUG_ALL) { |
| Slog.w(TAG, "Failed setting thread priority of " + app.getPid(), e); |
| } |
| } |
| } |
| } |
| if (state.hasRepForegroundActivities() != state.hasForegroundActivities()) { |
| state.setRepForegroundActivities(state.hasForegroundActivities()); |
| changes |= ActivityManagerService.ProcessChangeItem.CHANGE_ACTIVITIES; |
| } |
| |
| updateAppFreezeStateLSP(app); |
| |
| if (state.getReportedProcState() != state.getCurProcState()) { |
| state.setReportedProcState(state.getCurProcState()); |
| if (app.getThread() != null) { |
| try { |
| if (false) { |
| //RuntimeException h = new RuntimeException("here"); |
| Slog.i(TAG, "Sending new process state " + state.getReportedProcState() |
| + " to " + app /*, h*/); |
| } |
| app.getThread().setProcessState(state.getReportedProcState()); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| boolean forceUpdatePssTime = false; |
| if (state.getSetProcState() == PROCESS_STATE_NONEXISTENT |
| || ProcessList.procStatesDifferForMem( |
| state.getCurProcState(), state.getSetProcState())) { |
| state.setLastStateTime(now); |
| forceUpdatePssTime = true; |
| if (DEBUG_PSS) { |
| Slog.d(TAG_PSS, "Process state change from " |
| + ProcessList.makeProcStateString(state.getSetProcState()) + " to " |
| + ProcessList.makeProcStateString(state.getCurProcState()) + " next pss in " |
| + (app.mProfile.getNextPssTime() - now) + ": " + app); |
| } |
| } |
| synchronized (mService.mAppProfiler.mProfilerLock) { |
| app.mProfile.updateProcState(app.mState); |
| mService.mAppProfiler.updateNextPssTimeLPf( |
| state.getCurProcState(), app.mProfile, now, forceUpdatePssTime); |
| } |
| if (state.getSetProcState() != state.getCurProcState()) { |
| if (DEBUG_SWITCH || DEBUG_OOM_ADJ || mService.mCurOomAdjUid == app.uid) { |
| String msg = "Proc state change of " + app.processName |
| + " to " + ProcessList.makeProcStateString(state.getCurProcState()) |
| + " (" + state.getCurProcState() + ")" + ": " + state.getAdjType(); |
| reportOomAdjMessageLocked(TAG_OOM_ADJ, msg); |
| } |
| boolean setImportant = state.getSetProcState() < PROCESS_STATE_SERVICE; |
| boolean curImportant = state.getCurProcState() < PROCESS_STATE_SERVICE; |
| if (setImportant && !curImportant) { |
| // This app is no longer something we consider important enough to allow to use |
| // arbitrary amounts of battery power. Note its current CPU time to later know to |
| // kill it if it is not behaving well. |
| state.setWhenUnimportant(now); |
| app.mProfile.mLastCpuTime.set(0); |
| } |
| // Inform UsageStats of important process state change |
| // Must be called before updating setProcState |
| maybeUpdateUsageStatsLSP(app, nowElapsed); |
| |
| maybeUpdateLastTopTime(state, now); |
| |
| state.setSetProcState(state.getCurProcState()); |
| if (state.getSetProcState() >= ActivityManager.PROCESS_STATE_HOME) { |
| state.setNotCachedSinceIdle(false); |
| } |
| if (!doingAll) { |
| synchronized (mService.mProcessStats.mLock) { |
| mService.setProcessTrackerStateLOSP(app, |
| mService.mProcessStats.getMemFactorLocked()); |
| } |
| } else { |
| state.setProcStateChanged(true); |
| } |
| } else if (state.hasReportedInteraction()) { |
| final boolean fgsInteractionChangeEnabled = state.getCachedCompatChange( |
| CACHED_COMPAT_CHANGE_USE_SHORT_FGS_USAGE_INTERACTION_TIME); |
| final long interactionThreshold = fgsInteractionChangeEnabled |
| ? mConstants.USAGE_STATS_INTERACTION_INTERVAL_POST_S |
| : mConstants.USAGE_STATS_INTERACTION_INTERVAL_PRE_S; |
| // For apps that sit around for a long time in the interactive state, we need |
| // to report this at least once a day so they don't go idle. |
| if ((nowElapsed - state.getInteractionEventTime()) > interactionThreshold) { |
| maybeUpdateUsageStatsLSP(app, nowElapsed); |
| } |
| } else { |
| final boolean fgsInteractionChangeEnabled = state.getCachedCompatChange( |
| CACHED_COMPAT_CHANGE_USE_SHORT_FGS_USAGE_INTERACTION_TIME); |
| final long interactionThreshold = fgsInteractionChangeEnabled |
| ? mConstants.SERVICE_USAGE_INTERACTION_TIME_POST_S |
| : mConstants.SERVICE_USAGE_INTERACTION_TIME_PRE_S; |
| // For foreground services that sit around for a long time but are not interacted with. |
| if ((nowElapsed - state.getFgInteractionTime()) > interactionThreshold) { |
| maybeUpdateUsageStatsLSP(app, nowElapsed); |
| } |
| } |
| |
| if (state.getCurCapability() != state.getSetCapability()) { |
| changes |= ActivityManagerService.ProcessChangeItem.CHANGE_CAPABILITY; |
| state.setSetCapability(state.getCurCapability()); |
| } |
| |
| final boolean curBoundByNonBgRestrictedApp = state.isCurBoundByNonBgRestrictedApp(); |
| if (curBoundByNonBgRestrictedApp != state.isSetBoundByNonBgRestrictedApp()) { |
| state.setSetBoundByNonBgRestrictedApp(curBoundByNonBgRestrictedApp); |
| if (!curBoundByNonBgRestrictedApp && state.isBackgroundRestricted()) { |
| mService.mHandler.post(() -> { |
| synchronized (mService) { |
| mService.mServices.stopAllForegroundServicesLocked( |
| app.uid, app.info.packageName); |
| } |
| }); |
| } |
| } |
| |
| if (changes != 0) { |
| if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS, |
| "Changes in " + app + ": " + changes); |
| ActivityManagerService.ProcessChangeItem item = |
| mProcessList.enqueueProcessChangeItemLocked(app.getPid(), app.info.uid); |
| item.changes |= changes; |
| item.foregroundActivities = state.hasRepForegroundActivities(); |
| item.capability = state.getSetCapability(); |
| if (DEBUG_PROCESS_OBSERVERS) Slog.i(TAG_PROCESS_OBSERVERS, |
| "Item " + Integer.toHexString(System.identityHashCode(item)) |
| + " " + app.toShortString() + ": changes=" + item.changes |
| + " foreground=" + item.foregroundActivities |
| + " type=" + state.getAdjType() + " source=" + state.getAdjSource() |
| + " target=" + state.getAdjTarget() + " capability=" + item.capability); |
| } |
| |
| if (state.isCached() && !state.shouldNotKillOnBgRestrictedAndIdle()) { |
| // It's eligible to get killed when in UID idle and bg restricted mode, |
| // check if these states are just flipped. |
| if (!state.isSetCached() || state.isSetNoKillOnBgRestrictedAndIdle()) { |
| // Take the timestamp, we'd hold the killing for the background settle time |
| // (for states debouncing to avoid from thrashing). |
| state.setLastCanKillOnBgRestrictedAndIdleTime(nowElapsed); |
| // Kick off the delayed checkup message if needed. |
| if (!mService.mHandler.hasMessages(IDLE_UIDS_MSG)) { |
| mService.mHandler.sendEmptyMessageDelayed(IDLE_UIDS_MSG, |
| mConstants.mKillBgRestrictedAndCachedIdleSettleTimeMs); |
| } |
| } |
| } |
| state.setSetCached(state.isCached()); |
| state.setSetNoKillOnBgRestrictedAndIdle(state.shouldNotKillOnBgRestrictedAndIdle()); |
| |
| return success; |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void setAttachingSchedGroupLSP(ProcessRecord app) { |
| int initialSchedGroup = ProcessList.SCHED_GROUP_DEFAULT; |
| final ProcessStateRecord state = app.mState; |
| // If the process has been marked as foreground, it is starting as the top app (with |
| // Zygote#START_AS_TOP_APP_ARG), so boost the thread priority of its default UI thread. |
| if (state.hasForegroundActivities()) { |
| try { |
| // The priority must be the same as how does {@link #applyOomAdjLSP} set for |
| // {@link ProcessList.SCHED_GROUP_TOP_APP}. We don't check render thread because it |
| // is not ready when attaching. |
| app.getWindowProcessController().onTopProcChanged(); |
| setThreadPriority(app.getPid(), THREAD_PRIORITY_TOP_APP_BOOST); |
| initialSchedGroup = ProcessList.SCHED_GROUP_TOP_APP; |
| } catch (Exception e) { |
| Slog.w(TAG, "Failed to pre-set top priority to " + app + " " + e); |
| } |
| } |
| |
| state.setSetSchedGroup(initialSchedGroup); |
| state.setCurrentSchedulingGroup(initialSchedGroup); |
| } |
| |
| // ONLY used for unit testing in OomAdjusterTests.java |
| @VisibleForTesting |
| void maybeUpdateUsageStats(ProcessRecord app, long nowElapsed) { |
| synchronized (mService) { |
| synchronized (mProcLock) { |
| maybeUpdateUsageStatsLSP(app, nowElapsed); |
| } |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void maybeUpdateUsageStatsLSP(ProcessRecord app, long nowElapsed) { |
| final ProcessStateRecord state = app.mState; |
| if (DEBUG_USAGE_STATS) { |
| Slog.d(TAG, "Checking proc [" + Arrays.toString(app.getPackageList()) |
| + "] state changes: old = " + state.getSetProcState() + ", new = " |
| + state.getCurProcState()); |
| } |
| if (mService.mUsageStatsService == null) { |
| return; |
| } |
| final boolean fgsInteractionChangeEnabled = state.getCachedCompatChange( |
| CACHED_COMPAT_CHANGE_USE_SHORT_FGS_USAGE_INTERACTION_TIME); |
| boolean isInteraction; |
| // To avoid some abuse patterns, we are going to be careful about what we consider |
| // to be an app interaction. Being the top activity doesn't count while the display |
| // is sleeping, nor do short foreground services. |
| if (state.getCurProcState() <= PROCESS_STATE_TOP |
| || state.getCurProcState() == PROCESS_STATE_BOUND_TOP) { |
| isInteraction = true; |
| state.setFgInteractionTime(0); |
| } else if (state.getCurProcState() <= PROCESS_STATE_FOREGROUND_SERVICE) { |
| if (state.getFgInteractionTime() == 0) { |
| state.setFgInteractionTime(nowElapsed); |
| isInteraction = false; |
| } else { |
| final long interactionTime = fgsInteractionChangeEnabled |
| ? mConstants.SERVICE_USAGE_INTERACTION_TIME_POST_S |
| : mConstants.SERVICE_USAGE_INTERACTION_TIME_PRE_S; |
| isInteraction = nowElapsed > state.getFgInteractionTime() + interactionTime; |
| } |
| } else { |
| isInteraction = |
| state.getCurProcState() <= PROCESS_STATE_IMPORTANT_FOREGROUND; |
| state.setFgInteractionTime(0); |
| } |
| final long interactionThreshold = fgsInteractionChangeEnabled |
| ? mConstants.USAGE_STATS_INTERACTION_INTERVAL_POST_S |
| : mConstants.USAGE_STATS_INTERACTION_INTERVAL_PRE_S; |
| if (isInteraction |
| && (!state.hasReportedInteraction() |
| || (nowElapsed - state.getInteractionEventTime()) > interactionThreshold)) { |
| state.setInteractionEventTime(nowElapsed); |
| String[] packages = app.getPackageList(); |
| if (packages != null) { |
| for (int i = 0; i < packages.length; i++) { |
| mService.mUsageStatsService.reportEvent(packages[i], app.userId, |
| UsageEvents.Event.SYSTEM_INTERACTION); |
| } |
| } |
| } |
| state.setReportedInteraction(isInteraction); |
| if (!isInteraction) { |
| state.setInteractionEventTime(0); |
| } |
| } |
| |
| private void maybeUpdateLastTopTime(ProcessStateRecord state, long nowUptime) { |
| if (state.getSetProcState() <= PROCESS_STATE_TOP |
| && state.getCurProcState() > PROCESS_STATE_TOP) { |
| state.setLastTopTime(nowUptime); |
| } |
| } |
| |
| /** |
| * Look for recently inactive apps and mark them idle after a grace period. If idled, stop |
| * any background services and inform listeners. |
| */ |
| @GuardedBy("mService") |
| void idleUidsLocked() { |
| final int N = mActiveUids.size(); |
| if (N <= 0) { |
| return; |
| } |
| final long nowElapsed = SystemClock.elapsedRealtime(); |
| final long maxBgTime = nowElapsed - mConstants.BACKGROUND_SETTLE_TIME; |
| long nextTime = 0; |
| if (mLocalPowerManager != null) { |
| mLocalPowerManager.startUidChanges(); |
| } |
| for (int i = N - 1; i >= 0; i--) { |
| final UidRecord uidRec = mActiveUids.valueAt(i); |
| final long bgTime = uidRec.getLastBackgroundTime(); |
| if (bgTime > 0 && !uidRec.isIdle()) { |
| if (bgTime <= maxBgTime) { |
| EventLogTags.writeAmUidIdle(uidRec.getUid()); |
| synchronized (mProcLock) { |
| uidRec.setIdle(true); |
| uidRec.setSetIdle(true); |
| } |
| mService.doStopUidLocked(uidRec.getUid(), uidRec); |
| } else { |
| if (nextTime == 0 || nextTime > bgTime) { |
| nextTime = bgTime; |
| } |
| } |
| } |
| } |
| if (mLocalPowerManager != null) { |
| mLocalPowerManager.finishUidChanges(); |
| } |
| // Also check if there are any apps in cached and background restricted mode, |
| // if so, kill it if it's been there long enough, or kick off a msg to check |
| // it later. |
| if (mService.mConstants.mKillBgRestrictedAndCachedIdle) { |
| final ArraySet<ProcessRecord> apps = mProcessList.mAppsInBackgroundRestricted; |
| for (int i = 0, size = apps.size(); i < size; i++) { |
| // Check to see if needs to be killed. |
| final long bgTime = mProcessList.killAppIfBgRestrictedAndCachedIdleLocked( |
| apps.valueAt(i), nowElapsed) - mConstants.BACKGROUND_SETTLE_TIME; |
| if (bgTime > 0 && (nextTime == 0 || nextTime > bgTime)) { |
| nextTime = bgTime; |
| } |
| } |
| } |
| if (nextTime > 0) { |
| mService.mHandler.removeMessages(IDLE_UIDS_MSG); |
| mService.mHandler.sendEmptyMessageDelayed(IDLE_UIDS_MSG, |
| nextTime + mConstants.BACKGROUND_SETTLE_TIME - nowElapsed); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void setAppIdTempAllowlistStateLSP(int uid, boolean onAllowlist) { |
| boolean changed = false; |
| for (int i = mActiveUids.size() - 1; i >= 0; i--) { |
| final UidRecord uidRec = mActiveUids.valueAt(i); |
| if (uidRec.getUid() == uid && uidRec.isCurAllowListed() != onAllowlist) { |
| uidRec.setCurAllowListed(onAllowlist); |
| changed = true; |
| } |
| } |
| if (changed) { |
| updateOomAdjLSP(OOM_ADJ_REASON_ALLOWLIST); |
| } |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| void setUidTempAllowlistStateLSP(int uid, boolean onAllowlist) { |
| boolean changed = false; |
| final UidRecord uidRec = mActiveUids.get(uid); |
| if (uidRec != null && uidRec.isCurAllowListed() != onAllowlist) { |
| uidRec.setCurAllowListed(onAllowlist); |
| updateOomAdjLSP(OOM_ADJ_REASON_ALLOWLIST); |
| } |
| } |
| |
| @GuardedBy("mService") |
| void dumpProcessListVariablesLocked(ProtoOutputStream proto) { |
| proto.write(ActivityManagerServiceDumpProcessesProto.ADJ_SEQ, mAdjSeq); |
| proto.write(ActivityManagerServiceDumpProcessesProto.LRU_SEQ, mProcessList.getLruSeqLOSP()); |
| proto.write(ActivityManagerServiceDumpProcessesProto.NUM_NON_CACHED_PROCS, |
| mNumNonCachedProcs); |
| proto.write(ActivityManagerServiceDumpProcessesProto.NUM_SERVICE_PROCS, mNumServiceProcs); |
| proto.write(ActivityManagerServiceDumpProcessesProto.NEW_NUM_SERVICE_PROCS, |
| mNewNumServiceProcs); |
| |
| } |
| |
| @GuardedBy("mService") |
| void dumpSequenceNumbersLocked(PrintWriter pw) { |
| pw.println(" mAdjSeq=" + mAdjSeq + " mLruSeq=" + mProcessList.getLruSeqLOSP()); |
| } |
| |
| @GuardedBy("mService") |
| void dumpProcCountsLocked(PrintWriter pw) { |
| pw.println(" mNumNonCachedProcs=" + mNumNonCachedProcs |
| + " (" + mProcessList.getLruSizeLOSP() + " total)" |
| + " mNumCachedHiddenProcs=" + mNumCachedHiddenProcs |
| + " mNumServiceProcs=" + mNumServiceProcs |
| + " mNewNumServiceProcs=" + mNewNumServiceProcs); |
| } |
| |
| @GuardedBy("mProcLock") |
| void dumpCachedAppOptimizerSettings(PrintWriter pw) { |
| mCachedAppOptimizer.dump(pw); |
| } |
| |
| @GuardedBy("mService") |
| void dumpCacheOomRankerSettings(PrintWriter pw) { |
| mCacheOomRanker.dump(pw); |
| } |
| |
| @GuardedBy({"mService", "mProcLock"}) |
| private void updateAppFreezeStateLSP(ProcessRecord app) { |
| if (!mCachedAppOptimizer.useFreezer()) { |
| return; |
| } |
| |
| if (app.mOptRecord.isFreezeExempt()) { |
| return; |
| } |
| |
| final ProcessCachedOptimizerRecord opt = app.mOptRecord; |
| // if an app is already frozen and shouldNotFreeze becomes true, immediately unfreeze |
| if (opt.isFrozen() && opt.shouldNotFreeze()) { |
| mCachedAppOptimizer.unfreezeAppLSP(app); |
| return; |
| } |
| |
| final ProcessStateRecord state = app.mState; |
| // Use current adjustment when freezing, set adjustment when unfreezing. |
| if (state.getCurAdj() >= ProcessList.CACHED_APP_MIN_ADJ && !opt.isFrozen() |
| && !opt.shouldNotFreeze()) { |
| mCachedAppOptimizer.freezeAppAsyncLSP(app); |
| } else if (state.getSetAdj() < ProcessList.CACHED_APP_MIN_ADJ) { |
| mCachedAppOptimizer.unfreezeAppLSP(app); |
| } |
| } |
| } |