am c8525edc: Merge "Remove memory monitoring from the system watchdog" into gingerbread

Merge commit 'c8525edcba58cba7ce17ef72bc64fc3439943c08' into gingerbread-plus-aosp

* commit 'c8525edcba58cba7ce17ef72bc64fc3439943c08':
  Remove memory monitoring from the system watchdog

8 files changed, 5 insertions, 588 deletions

diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index e56fee99cb10..1fe85e6c1756 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -1021,16 +1021,6 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
             return true;
         }
 
-        case REPORT_PSS_TRANSACTION: {
-            data.enforceInterface(IActivityManager.descriptor);
-            IBinder b = data.readStrongBinder();
-            IApplicationThread app = ApplicationThreadNative.asInterface(b);
-            int pss = data.readInt();
-            reportPss(app, pss);
-            reply.writeNoException();
-            return true;
-        }
-
         case START_RUNNING_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             String pkg = data.readString();
@@ -2529,14 +2519,6 @@ class ActivityManagerProxy implements IActivityManager
         reply.recycle();
         return res;
     }
-    public void reportPss(IApplicationThread caller, int pss) throws RemoteException {
-        Parcel data = Parcel.obtain();
-        data.writeInterfaceToken(IActivityManager.descriptor);
-        data.writeStrongBinder(caller.asBinder());
-        data.writeInt(pss);
-        mRemote.transact(REPORT_PSS_TRANSACTION, data, null, 0);
-        data.recycle();
-    }
     public void startRunning(String pkg, String cls, String action,
             String indata) throws RemoteException {
         Parcel data = Parcel.obtain();
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 03bb858376e6..883366ba361d 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -616,14 +616,6 @@ public final class ActivityThread {
             queueOrSendMessage(H.ACTIVITY_CONFIGURATION_CHANGED, token);
         }
 
-        public void requestPss() {
-            try {
-                ActivityManagerNative.getDefault().reportPss(this,
-                        (int)Process.getPss(Process.myPid()));
-            } catch (RemoteException e) {
-            }
-        }
-
         public void profilerControl(boolean start, String path, ParcelFileDescriptor fd) {
             ProfilerControlData pcd = new ProfilerControlData();
             pcd.path = path;
diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index 360959d65517..1c20062f3f84 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -341,13 +341,6 @@ public abstract class ApplicationThreadNative extends Binder
             return true;
         }
         
-        case REQUEST_PSS_TRANSACTION:
-        {
-            data.enforceInterface(IApplicationThread.descriptor);
-            requestPss();
-            return true;
-        }
-        
         case PROFILER_CONTROL_TRANSACTION:
         {
             data.enforceInterface(IApplicationThread.descriptor);
@@ -779,14 +772,6 @@ class ApplicationThreadProxy implements IApplicationThread {
         data.recycle();
     }
     
-    public final void requestPss() throws RemoteException {
-        Parcel data = Parcel.obtain();
-        data.writeInterfaceToken(IApplicationThread.descriptor);
-        mRemote.transact(REQUEST_PSS_TRANSACTION, data, null,
-                IBinder.FLAG_ONEWAY);
-        data.recycle();
-    }
-    
     public void profilerControl(boolean start, String path,
             ParcelFileDescriptor fd) throws RemoteException {
         Parcel data = Parcel.obtain();
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index bf02d5a14c68..20c9a80c430a 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -247,8 +247,6 @@ public interface IActivityManager extends IInterface {
     
     public boolean killPids(int[] pids, String reason) throws RemoteException;
     
-    public void reportPss(IApplicationThread caller, int pss) throws RemoteException;
-    
     // Special low-level communication with activity manager.
     public void startRunning(String pkg, String cls, String action,
             String data) throws RemoteException;
@@ -502,7 +500,7 @@ public interface IActivityManager extends IInterface {
     int FORCE_STOP_PACKAGE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+78;
     int KILL_PIDS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+79;
     int GET_SERVICES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+80;
-    int REPORT_PSS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+81;
+
     int GET_RUNNING_APP_PROCESSES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+82;
     int GET_DEVICE_CONFIGURATION_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+83;
     int PEEK_SERVICE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+84;
diff --git a/core/java/android/app/IApplicationThread.java b/core/java/android/app/IApplicationThread.java
index ffb86515bdd3..c8ef17f1b7a9 100644
--- a/core/java/android/app/IApplicationThread.java
+++ b/core/java/android/app/IApplicationThread.java
@@ -95,7 +95,6 @@ public interface IApplicationThread extends IInterface {
             throws RemoteException;
     void scheduleLowMemory() throws RemoteException;
     void scheduleActivityConfigurationChanged(IBinder token) throws RemoteException;
-    void requestPss() throws RemoteException;
     void profilerControl(boolean start, String path, ParcelFileDescriptor fd)
             throws RemoteException;
     void setSchedulingGroup(int group) throws RemoteException;
@@ -132,7 +131,7 @@ public interface IApplicationThread extends IInterface {
     int SCHEDULE_LOW_MEMORY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+23;
     int SCHEDULE_ACTIVITY_CONFIGURATION_CHANGED_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+24;
     int SCHEDULE_RELAUNCH_ACTIVITY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+25;
-    int REQUEST_PSS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+26;
+
     int PROFILER_CONTROL_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+27;
     int SET_SCHEDULING_GROUP_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+28;
     int SCHEDULE_CREATE_BACKUP_AGENT_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+29;
diff --git a/services/java/com/android/server/Watchdog.java b/services/java/com/android/server/Watchdog.java
index d4133f309338..a7420938445d 100644
--- a/services/java/com/android/server/Watchdog.java
+++ b/services/java/com/android/server/Watchdog.java
@@ -57,20 +57,10 @@ public class Watchdog extends Thread {
     static final boolean RECORD_KERNEL_THREADS = true;
 
     static final int MONITOR = 2718;
-    static final int GLOBAL_PSS = 2719;
 
     static final int TIME_TO_RESTART = DB ? 15*1000 : 60*1000;
     static final int TIME_TO_WAIT = TIME_TO_RESTART / 2;
 
-    static final int MEMCHECK_DEFAULT_INTERVAL = DB ? 30 : 30*60; // 30 minutes
-    static final int MEMCHECK_DEFAULT_LOG_REALTIME_INTERVAL = DB ? 60 : 2*60*60;      // 2 hours
-    static final int MEMCHECK_DEFAULT_SYSTEM_SOFT_THRESHOLD = (DB ? 10:16)*1024*1024; // 16MB
-    static final int MEMCHECK_DEFAULT_SYSTEM_HARD_THRESHOLD = (DB ? 14:20)*1024*1024; // 20MB
-    static final int MEMCHECK_DEFAULT_PHONE_SOFT_THRESHOLD = (DB ? 4:8)*1024*1024;    // 8MB
-    static final int MEMCHECK_DEFAULT_PHONE_HARD_THRESHOLD = (DB ? 8:12)*1024*1024;   // 12MB
-
-    static final int MEMCHECK_DEFAULT_EXEC_START_TIME = 1*60*60;           // 1:00am
-    static final int MEMCHECK_DEFAULT_EXEC_END_TIME = 5*60*60;             // 5:00am
     static final int MEMCHECK_DEFAULT_MIN_SCREEN_OFF = DB ? 1*60 : 5*60;   // 5 minutes
     static final int MEMCHECK_DEFAULT_MIN_ALARM = DB ? 1*60 : 3*60;        // 3 minutes
     static final int MEMCHECK_DEFAULT_RECHECK_INTERVAL = DB ? 1*60 : 5*60; // 5 minutes
@@ -79,14 +69,12 @@ public class Watchdog extends Thread {
     static final int REBOOT_DEFAULT_START_TIME = 3*60*60;                  // 3:00am
     static final int REBOOT_DEFAULT_WINDOW = 60*60;                        // within 1 hour
 
-    static final String CHECKUP_ACTION = "com.android.service.Watchdog.CHECKUP";
     static final String REBOOT_ACTION = "com.android.service.Watchdog.REBOOT";
 
     static Watchdog sWatchdog;
 
     /* This handler will be used to post message back onto the main thread */
     final Handler mHandler;
-    final Runnable mGlobalPssCollected;
     final ArrayList<Monitor> mMonitors = new ArrayList<Monitor>();
     ContentResolver mResolver;
     BatteryService mBattery;
@@ -97,31 +85,9 @@ public class Watchdog extends Thread {
     boolean mForceKillSystem;
     Monitor mCurrentMonitor;
 
-    PssRequestor mPhoneReq;
     int mPhonePid;
-    int mPhonePss;
-
-    long mLastMemCheckTime = -(MEMCHECK_DEFAULT_INTERVAL*1000);
-    boolean mHavePss;
-    long mLastMemCheckRealtime = -(MEMCHECK_DEFAULT_LOG_REALTIME_INTERVAL*1000);
-    boolean mHaveGlobalPss;
-    final MemMonitor mSystemMemMonitor = new MemMonitor("system",
-            Settings.Secure.MEMCHECK_SYSTEM_ENABLED,
-            Settings.Secure.MEMCHECK_SYSTEM_SOFT_THRESHOLD,
-            MEMCHECK_DEFAULT_SYSTEM_SOFT_THRESHOLD,
-            Settings.Secure.MEMCHECK_SYSTEM_HARD_THRESHOLD,
-            MEMCHECK_DEFAULT_SYSTEM_HARD_THRESHOLD);
-    final MemMonitor mPhoneMemMonitor = new MemMonitor("com.android.phone",
-            Settings.Secure.MEMCHECK_PHONE_ENABLED,
-            Settings.Secure.MEMCHECK_PHONE_SOFT_THRESHOLD,
-            MEMCHECK_DEFAULT_PHONE_SOFT_THRESHOLD,
-            Settings.Secure.MEMCHECK_PHONE_HARD_THRESHOLD,
-            MEMCHECK_DEFAULT_PHONE_HARD_THRESHOLD);
 
     final Calendar mCalendar = Calendar.getInstance();
-    long mMemcheckLastTime;
-    long mMemcheckExecStartTime;
-    long mMemcheckExecEndTime;
     int mMinScreenOff = MEMCHECK_DEFAULT_MIN_SCREEN_OFF;
     int mMinAlarm = MEMCHECK_DEFAULT_MIN_ALARM;
     boolean mNeedScheduledCheck;
@@ -140,126 +106,13 @@ public class Watchdog extends Thread {
     int mReqRecheckInterval= -1;  // >= 0 if a specific recheck interval has been requested
 
     /**
-     * This class monitors the memory in a particular process.
-     */
-    final class MemMonitor {
-        final String mProcessName;
-        final String mEnabledSetting;
-        final String mSoftSetting;
-        final String mHardSetting;
-
-        int mSoftThreshold;
-        int mHardThreshold;
-        boolean mEnabled;
-        long mLastPss;
-
-        static final int STATE_OK = 0;
-        static final int STATE_SOFT = 1;
-        static final int STATE_HARD = 2;
-        int mState;
-
-        MemMonitor(String processName, String enabledSetting,
-                String softSetting, int defSoftThreshold,
-                String hardSetting, int defHardThreshold) {
-            mProcessName = processName;
-            mEnabledSetting = enabledSetting;
-            mSoftSetting = softSetting;
-            mHardSetting = hardSetting;
-            mSoftThreshold = defSoftThreshold;
-            mHardThreshold = defHardThreshold;
-        }
-
-        void retrieveSettings(ContentResolver resolver) {
-            mSoftThreshold = Settings.Secure.getInt(
-                    resolver, mSoftSetting, mSoftThreshold);
-            mHardThreshold = Settings.Secure.getInt(
-                    resolver, mHardSetting, mHardThreshold);
-            mEnabled = Settings.Secure.getInt(
-                    resolver, mEnabledSetting, 0) != 0;
-        }
-
-        boolean checkLocked(long curTime, int pid, int pss) {
-            mLastPss = pss;
-            if (mLastPss < mSoftThreshold) {
-                mState = STATE_OK;
-            } else if (mLastPss < mHardThreshold) {
-                mState = STATE_SOFT;
-            } else {
-                mState = STATE_HARD;
-            }
-            EventLog.writeEvent(EventLogTags.WATCHDOG_PROC_PSS, mProcessName, pid, mLastPss);
-
-            if (mState == STATE_OK) {
-                // Memory is good, don't recover.
-                return false;
-            }
-
-            if (mState == STATE_HARD) {
-                // Memory is really bad, kill right now.
-                EventLog.writeEvent(EventLogTags.WATCHDOG_HARD_RESET, mProcessName, pid,
-                        mHardThreshold, mLastPss);
-                return mEnabled;
-            }
-
-            // It is time to schedule a reset...
-            // Check if we are currently within the time to kill processes due
-            // to memory use.
-            computeMemcheckTimesLocked(curTime);
-            String skipReason = null;
-            if (curTime < mMemcheckExecStartTime || curTime > mMemcheckExecEndTime) {
-                skipReason = "time";
-            } else {
-                skipReason = shouldWeBeBrutalLocked(curTime);
-            }
-            EventLog.writeEvent(EventLogTags.WATCHDOG_SOFT_RESET, mProcessName, pid,
-                    mSoftThreshold, mLastPss, skipReason != null ? skipReason : "");
-            if (skipReason != null) {
-                mNeedScheduledCheck = true;
-                return false;
-            }
-            return mEnabled;
-        }
-
-        void clear() {
-            mLastPss = 0;
-            mState = STATE_OK;
-        }
-    }
-
-    /**
      * Used for scheduling monitor callbacks and checking memory usage.
      */
     final class HeartbeatHandler extends Handler {
         @Override
         public void handleMessage(Message msg) {
             switch (msg.what) {
-                case GLOBAL_PSS: {
-                    if (mHaveGlobalPss) {
-                        // During the last pass we collected pss information, so
-                        // now it is time to report it.
-                        mHaveGlobalPss = false;
-                        if (localLOGV) Slog.v(TAG, "Received global pss, logging.");
-                        logGlobalMemory();
-                    }
-                } break;
-
                 case MONITOR: {
-                    if (mHavePss) {
-                        // During the last pass we collected pss information, so
-                        // now it is time to report it.
-                        mHavePss = false;
-                        if (localLOGV) Slog.v(TAG, "Have pss, checking memory.");
-                        checkMemory();
-                    }
-
-                    if (mHaveGlobalPss) {
-                        // During the last pass we collected pss information, so
-                        // now it is time to report it.
-                        mHaveGlobalPss = false;
-                        if (localLOGV) Slog.v(TAG, "Have global pss, logging.");
-                        logGlobalMemory();
-                    }
-
                     long now = SystemClock.uptimeMillis();
 
                     // See if we should force a reboot.
@@ -274,32 +127,6 @@ public class Watchdog extends Thread {
                         checkReboot(false);
                     }
 
-                    // See if we should check memory conditions.
-                    long memCheckInterval = Settings.Secure.getLong(
-                            mResolver, Settings.Secure.MEMCHECK_INTERVAL,
-                            MEMCHECK_DEFAULT_INTERVAL) * 1000;
-                    if ((mLastMemCheckTime+memCheckInterval) < now) {
-                        // It is now time to collect pss information.  This
-                        // is async so we won't report it now.  And to keep
-                        // things simple, we will assume that everyone has
-                        // reported back by the next MONITOR message.
-                        mLastMemCheckTime = now;
-                        if (localLOGV) Slog.v(TAG, "Collecting memory usage.");
-                        collectMemory();
-                        mHavePss = true;
-
-                        long memCheckRealtimeInterval = Settings.Secure.getLong(
-                                mResolver, Settings.Secure.MEMCHECK_LOG_REALTIME_INTERVAL,
-                                MEMCHECK_DEFAULT_LOG_REALTIME_INTERVAL) * 1000;
-                        long realtimeNow = SystemClock.elapsedRealtime();
-                        if ((mLastMemCheckRealtime+memCheckRealtimeInterval) < realtimeNow) {
-                            mLastMemCheckRealtime = realtimeNow;
-                            if (localLOGV) Slog.v(TAG, "Collecting global memory usage.");
-                            collectGlobalMemory();
-                            mHaveGlobalPss = true;
-                        }
-                    }
-
                     final int size = mMonitors.size();
                     for (int i = 0 ; i < size ; i++) {
                         mCurrentMonitor = mMonitors.get(i);
@@ -315,20 +142,6 @@ public class Watchdog extends Thread {
         }
     }
 
-    final class GlobalPssCollected implements Runnable {
-        public void run() {
-            mHandler.sendEmptyMessage(GLOBAL_PSS);
-        }
-    }
-
-    final class CheckupReceiver extends BroadcastReceiver {
-        @Override
-        public void onReceive(Context c, Intent intent) {
-            if (localLOGV) Slog.v(TAG, "Alarm went off, checking memory.");
-            checkMemory();
-        }
-    }
-
     final class RebootReceiver extends BroadcastReceiver {
         @Override
         public void onReceive(Context c, Intent intent) {
@@ -359,27 +172,6 @@ public class Watchdog extends Thread {
         void monitor();
     }
 
-    public interface PssRequestor {
-        void requestPss();
-    }
-
-    public class PssStats {
-        public int mEmptyPss;
-        public int mEmptyCount;
-        public int mBackgroundPss;
-        public int mBackgroundCount;
-        public int mServicePss;
-        public int mServiceCount;
-        public int mVisiblePss;
-        public int mVisibleCount;
-        public int mForegroundPss;
-        public int mForegroundCount;
-
-        public int mNoPssCount;
-
-        public int mProcDeaths[] = new int[10];
-    }
-
     public static Watchdog getInstance() {
         if (sWatchdog == null) {
             sWatchdog = new Watchdog();
@@ -391,7 +183,6 @@ public class Watchdog extends Thread {
     private Watchdog() {
         super("watchdog");
         mHandler = new HeartbeatHandler();
-        mGlobalPssCollected = new GlobalPssCollected();
     }
 
     public void init(Context context, BatteryService battery,
@@ -403,11 +194,6 @@ public class Watchdog extends Thread {
         mAlarm = alarm;
         mActivity = activity;
 
-        context.registerReceiver(new CheckupReceiver(),
-                new IntentFilter(CHECKUP_ACTION));
-        mCheckupIntent = PendingIntent.getBroadcast(context,
-                0, new Intent(CHECKUP_ACTION), 0);
-
         context.registerReceiver(new RebootReceiver(),
                 new IntentFilter(REBOOT_ACTION));
         mRebootIntent = PendingIntent.getBroadcast(context,
@@ -420,20 +206,10 @@ public class Watchdog extends Thread {
         mBootTime = System.currentTimeMillis();
     }
 
-    public void processStarted(PssRequestor req, String name, int pid) {
+    public void processStarted(String name, int pid) {
         synchronized (this) {
             if ("com.android.phone".equals(name)) {
-                mPhoneReq = req;
                 mPhonePid = pid;
-                mPhonePss = 0;
-            }
-        }
-    }
-
-    public void reportPss(PssRequestor req, String name, int pss) {
-        synchronized (this) {
-            if (mPhoneReq == req) {
-                mPhonePss = pss;
             }
         }
     }
@@ -447,152 +223,6 @@ public class Watchdog extends Thread {
         }
     }
 
-    /**
-     * Retrieve memory usage information from specific processes being
-     * monitored.  This is an async operation, so must be done before doing
-     * memory checks.
-     */
-    void collectMemory() {
-        synchronized (this) {
-            if (mPhoneReq != null) {
-                mPhoneReq.requestPss();
-            }
-        }
-    }
-
-    /**
-     * Retrieve memory usage over all application processes.  This is an
-     * async operation, so must be done before doing memory checks.
-     */
-    void collectGlobalMemory() {
-        mActivity.requestPss(mGlobalPssCollected);
-    }
-
-    /**
-     * Check memory usage in the system, scheduling kills/reboots as needed.
-     * This always runs on the mHandler thread.
-     */
-    void checkMemory() {
-        boolean needScheduledCheck;
-        long curTime;
-        long nextTime = 0;
-
-        long recheckInterval = Settings.Secure.getLong(
-                mResolver, Settings.Secure.MEMCHECK_RECHECK_INTERVAL,
-                MEMCHECK_DEFAULT_RECHECK_INTERVAL) * 1000;
-
-        mSystemMemMonitor.retrieveSettings(mResolver);
-        mPhoneMemMonitor.retrieveSettings(mResolver);
-        retrieveBrutalityAmount();
-
-        synchronized (this) {
-            curTime = System.currentTimeMillis();
-            mNeedScheduledCheck = false;
-
-            // How is the system doing?
-            if (mSystemMemMonitor.checkLocked(curTime, Process.myPid(),
-                    (int)Process.getPss(Process.myPid()))) {
-                // Not good!  Time to suicide.
-                mForceKillSystem = true;
-                notifyAll();
-                return;
-            }
-
-            // How is the phone process doing?
-            if (mPhoneReq != null) {
-                if (mPhoneMemMonitor.checkLocked(curTime, mPhonePid,
-                        mPhonePss)) {
-                    // Just kill the phone process and let it restart.
-                    Slog.i(TAG, "Watchdog is killing the phone process");
-                    Process.killProcess(mPhonePid);
-                }
-            } else {
-                mPhoneMemMonitor.clear();
-            }
-
-            needScheduledCheck = mNeedScheduledCheck;
-            if (needScheduledCheck) {
-                // Something is going bad, but now is not a good time to
-                // tear things down...  schedule an alarm to check again soon.
-                nextTime = curTime + recheckInterval;
-                if (nextTime < mMemcheckExecStartTime) {
-                    nextTime = mMemcheckExecStartTime;
-                } else if (nextTime >= mMemcheckExecEndTime){
-                    // Need to check during next exec time...  so that needs
-                    // to be computed.
-                    if (localLOGV) Slog.v(TAG, "Computing next time range");
-                    computeMemcheckTimesLocked(nextTime);
-                    nextTime = mMemcheckExecStartTime;
-                }
-
-                if (localLOGV) {
-                    mCalendar.setTimeInMillis(nextTime);
-                    Slog.v(TAG, "Next Alarm Time: " + mCalendar);
-                }
-            }
-        }
-
-        if (needScheduledCheck) {
-            if (localLOGV) Slog.v(TAG, "Scheduling next memcheck alarm for "
-                    + ((nextTime-curTime)/1000/60) + "m from now");
-            mAlarm.remove(mCheckupIntent);
-            mAlarm.set(AlarmManager.RTC_WAKEUP, nextTime, mCheckupIntent);
-        } else {
-            if (localLOGV) Slog.v(TAG, "No need to schedule a memcheck alarm!");
-            mAlarm.remove(mCheckupIntent);
-        }
-    }
-
-    final PssStats mPssStats = new PssStats();
-    final String[] mMemInfoFields = new String[] {
-            "MemFree:", "Buffers:", "Cached:",
-            "Active:", "Inactive:",
-            "AnonPages:", "Mapped:", "Slab:",
-            "SReclaimable:", "SUnreclaim:", "PageTables:" };
-    final long[] mMemInfoSizes = new long[mMemInfoFields.length];
-    final String[] mVMStatFields = new String[] {
-            "pgfree ", "pgactivate ", "pgdeactivate ",
-            "pgfault ", "pgmajfault " };
-    final long[] mVMStatSizes = new long[mVMStatFields.length];
-    final long[] mPrevVMStatSizes = new long[mVMStatFields.length];
-    long mLastLogGlobalMemoryTime;
-
-    void logGlobalMemory() {
-        PssStats stats = mPssStats;
-        mActivity.collectPss(stats);
-        EventLog.writeEvent(EventLogTags.WATCHDOG_PSS_STATS,
-                stats.mEmptyPss, stats.mEmptyCount,
-                stats.mBackgroundPss, stats.mBackgroundCount,
-                stats.mServicePss, stats.mServiceCount,
-                stats.mVisiblePss, stats.mVisibleCount,
-                stats.mForegroundPss, stats.mForegroundCount,
-                stats.mNoPssCount);
-        EventLog.writeEvent(EventLogTags.WATCHDOG_PROC_STATS,
-                stats.mProcDeaths[0], stats.mProcDeaths[1], stats.mProcDeaths[2],
-                stats.mProcDeaths[3], stats.mProcDeaths[4]);
-        Process.readProcLines("/proc/meminfo", mMemInfoFields, mMemInfoSizes);
-        for (int i=0; i<mMemInfoSizes.length; i++) {
-            mMemInfoSizes[i] *= 1024;
-        }
-        EventLog.writeEvent(EventLogTags.WATCHDOG_MEMINFO,
-                (int)mMemInfoSizes[0], (int)mMemInfoSizes[1], (int)mMemInfoSizes[2],
-                (int)mMemInfoSizes[3], (int)mMemInfoSizes[4],
-                (int)mMemInfoSizes[5], (int)mMemInfoSizes[6], (int)mMemInfoSizes[7],
-                (int)mMemInfoSizes[8], (int)mMemInfoSizes[9], (int)mMemInfoSizes[10]);
-        long now = SystemClock.uptimeMillis();
-        long dur = now - mLastLogGlobalMemoryTime;
-        mLastLogGlobalMemoryTime = now;
-        Process.readProcLines("/proc/vmstat", mVMStatFields, mVMStatSizes);
-        for (int i=0; i<mVMStatSizes.length; i++) {
-            long v = mVMStatSizes[i];
-            mVMStatSizes[i] -= mPrevVMStatSizes[i];
-            mPrevVMStatSizes[i] = v;
-        }
-        EventLog.writeEvent(EventLogTags.WATCHDOG_VMSTAT, dur,
-                (int)mVMStatSizes[0], (int)mVMStatSizes[1], (int)mVMStatSizes[2],
-                (int)mVMStatSizes[3], (int)mVMStatSizes[4]);
-    }
-
     void checkReboot(boolean fromAlarm) {
         int rebootInterval = mReqRebootInterval >= 0 ? mReqRebootInterval
                 : Settings.Secure.getInt(
@@ -730,47 +360,6 @@ public class Watchdog extends Thread {
         return null;
     }
 
-    /**
-     * Compute the times during which we next would like to perform process
-     * restarts.
-     *
-     * @param curTime The current system time.
-     */
-    void computeMemcheckTimesLocked(long curTime) {
-        if (mMemcheckLastTime == curTime) {
-            return;
-        }
-
-        mMemcheckLastTime = curTime;
-
-        long memcheckExecStartTime = Settings.Secure.getLong(
-                mResolver, Settings.Secure.MEMCHECK_EXEC_START_TIME,
-                MEMCHECK_DEFAULT_EXEC_START_TIME);
-        long memcheckExecEndTime = Settings.Secure.getLong(
-                mResolver, Settings.Secure.MEMCHECK_EXEC_END_TIME,
-                MEMCHECK_DEFAULT_EXEC_END_TIME);
-
-        mMemcheckExecEndTime = computeCalendarTime(mCalendar, curTime,
-                memcheckExecEndTime);
-        if (mMemcheckExecEndTime < curTime) {
-            memcheckExecStartTime += 24*60*60;
-            memcheckExecEndTime += 24*60*60;
-            mMemcheckExecEndTime = computeCalendarTime(mCalendar, curTime,
-                    memcheckExecEndTime);
-        }
-        mMemcheckExecStartTime = computeCalendarTime(mCalendar, curTime,
-                memcheckExecStartTime);
-
-        if (localLOGV) {
-            mCalendar.setTimeInMillis(curTime);
-            Slog.v(TAG, "Current Time: " + mCalendar);
-            mCalendar.setTimeInMillis(mMemcheckExecStartTime);
-            Slog.v(TAG, "Start Check Time: " + mCalendar);
-            mCalendar.setTimeInMillis(mMemcheckExecEndTime);
-            Slog.v(TAG, "End Check Time: " + mCalendar);
-        }
-    }
-
     static long computeCalendarTime(Calendar c, long curTime,
             long secondsSinceMidnight) {
 
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 2c6806bcace7..46861eed05fd 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -880,7 +880,6 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
             if (localLOGV) Slog.v(
                 TAG, "Death received in " + this
                 + " for thread " + mAppThread.asBinder());
-            removeRequestedPss(mApp);
             synchronized(ActivityManagerService.this) {
                 appDiedLocked(mApp, mPid, mAppThread);
             }
@@ -1785,7 +1784,7 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
                     hostingNameStr != null ? hostingNameStr : "");
             
             if (app.persistent) {
-                Watchdog.getInstance().processStarted(app, app.processName, pid);
+                Watchdog.getInstance().processStarted(app.processName, pid);
             }
             
             StringBuilder buf = mStringBuilder;
@@ -5662,123 +5661,6 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
         return killed;
     }
     
-    public void reportPss(IApplicationThread caller, int pss) {
-        Watchdog.PssRequestor req;
-        String name;
-        ProcessRecord callerApp;
-        synchronized (this) {
-            if (caller == null) {
-                return;
-            }
-            callerApp = getRecordForAppLocked(caller);
-            if (callerApp == null) {
-                return;
-            }
-            callerApp.lastPss = pss;
-            req = callerApp;
-            name = callerApp.processName;
-        }
-        Watchdog.getInstance().reportPss(req, name, pss);
-        if (!callerApp.persistent) {
-            removeRequestedPss(callerApp);
-        }
-    }
-    
-    public void requestPss(Runnable completeCallback) {
-        ArrayList<ProcessRecord> procs;
-        synchronized (this) {
-            mRequestPssCallback = completeCallback;
-            mRequestPssList.clear();
-            for (int i=mLruProcesses.size()-1; i>=0; i--) {
-                ProcessRecord proc = mLruProcesses.get(i);
-                if (!proc.persistent) {
-                    mRequestPssList.add(proc);
-                }
-            }
-            procs = new ArrayList<ProcessRecord>(mRequestPssList);
-        }
-        
-        int oldPri = Process.getThreadPriority(Process.myTid()); 
-        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
-        for (int i=procs.size()-1; i>=0; i--) {
-            ProcessRecord proc = procs.get(i);
-            proc.lastPss = 0;
-            proc.requestPss();
-        }
-        Process.setThreadPriority(oldPri);
-    }
-    
-    void removeRequestedPss(ProcessRecord proc) {
-        Runnable callback = null;
-        synchronized (this) {
-            if (mRequestPssList.remove(proc)) {
-                if (mRequestPssList.size() == 0) {
-                    callback = mRequestPssCallback;
-                    mRequestPssCallback = null;
-                }
-            }
-        }
-        
-        if (callback != null) {
-            callback.run();
-        }
-    }
-    
-    public void collectPss(Watchdog.PssStats stats) {
-        stats.mEmptyPss = 0;
-        stats.mEmptyCount = 0;
-        stats.mBackgroundPss = 0;
-        stats.mBackgroundCount = 0;
-        stats.mServicePss = 0;
-        stats.mServiceCount = 0;
-        stats.mVisiblePss = 0;
-        stats.mVisibleCount = 0;
-        stats.mForegroundPss = 0;
-        stats.mForegroundCount = 0;
-        stats.mNoPssCount = 0;
-        synchronized (this) {
-            int i;
-            int NPD = mProcDeaths.length < stats.mProcDeaths.length
-                    ? mProcDeaths.length : stats.mProcDeaths.length;
-            int aggr = 0;
-            for (i=0; i<NPD; i++) {
-                aggr += mProcDeaths[i];
-                stats.mProcDeaths[i] = aggr;
-            }
-            while (i<stats.mProcDeaths.length) {
-                stats.mProcDeaths[i] = 0;
-                i++;
-            }
-            
-            for (i=mLruProcesses.size()-1; i>=0; i--) {
-                ProcessRecord proc = mLruProcesses.get(i);
-                if (proc.persistent) {
-                    continue;
-                }
-                //Slog.i(TAG, "Proc " + proc + ": pss=" + proc.lastPss);
-                if (proc.lastPss == 0) {
-                    stats.mNoPssCount++;
-                    continue;
-                }
-                if (proc.setAdj >= HIDDEN_APP_MIN_ADJ) {
-                    if (proc.empty) {
-                        stats.mEmptyPss += proc.lastPss;
-                        stats.mEmptyCount++;
-                    } else {
-                        stats.mBackgroundPss += proc.lastPss;
-                        stats.mBackgroundCount++;
-                    }
-                } else if (proc.setAdj >= VISIBLE_APP_ADJ) {
-                    stats.mVisiblePss += proc.lastPss;
-                    stats.mVisibleCount++;
-                } else {
-                    stats.mForegroundPss += proc.lastPss;
-                    stats.mForegroundCount++;
-                }
-            }
-        }
-    }
-    
     public final void startRunning(String pkg, String cls, String action,
             String data) {
         synchronized(this) {
diff --git a/services/java/com/android/server/am/ProcessRecord.java b/services/java/com/android/server/am/ProcessRecord.java
index 18fd9d64d3b3..18b1acbf4484 100644
--- a/services/java/com/android/server/am/ProcessRecord.java
+++ b/services/java/com/android/server/am/ProcessRecord.java
@@ -39,7 +39,7 @@ import java.util.HashSet;
  * Full information about a particular process that
  * is currently running.
  */
-class ProcessRecord implements Watchdog.PssRequestor {
+class ProcessRecord {
     final BatteryStatsImpl.Uid.Proc batteryStats; // where to collect runtime statistics
     final ApplicationInfo info; // all about the first app in the process
     final String processName;   // name of the process
@@ -264,16 +264,6 @@ class ProcessRecord implements Watchdog.PssRequestor {
         }
     }
     
-    public void requestPss() {
-        IApplicationThread localThread = thread;
-        if (localThread != null) {
-            try {
-                localThread.requestPss();
-            } catch (RemoteException e) {
-            }
-        }
-    }
-    
     public String toShortString() {
         if (shortStringName != null) {
             return shortStringName;