Merge "Add settings to toggle the phantom process monitoring in dev options" into sc-v2-dev (1a789dc5) · Commits · e / os / android_frameworks_base

core/java/android/util/FeatureFlagUtils.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -54,6 +54,10 @@ public class FeatureFlagUtils {
		/** @hide */
		public static final String SETTINGS_SUPPORT_LARGE_SCREEN = "settings_support_large_screen";

		/** @hide */
		public static final String SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS =
		"settings_enable_monitor_phantom_procs";

		private static final Map<String, String> DEFAULT_FLAGS;

		static {
		@@ -76,6 +80,7 @@ public class FeatureFlagUtils {
		DEFAULT_FLAGS.put(SETTINGS_USE_NEW_BACKUP_ELIGIBILITY_RULES, "true");
		DEFAULT_FLAGS.put(SETTINGS_ENABLE_SECURITY_HUB, "true");
		DEFAULT_FLAGS.put(SETTINGS_SUPPORT_LARGE_SCREEN, "true");
		DEFAULT_FLAGS.put(SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS, "true");
		}

		private static final Set<String> PERSISTENT_FLAGS;
		@@ -83,6 +88,7 @@ public class FeatureFlagUtils {
		PERSISTENT_FLAGS = new HashSet<>();
		PERSISTENT_FLAGS.add(SETTINGS_PROVIDER_MODEL);
		PERSISTENT_FLAGS.add(SETTINGS_SUPPORT_LARGE_SCREEN);
		PERSISTENT_FLAGS.add(SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS);
		}

		/**

services/core/java/com/android/server/am/ActivityManagerService.java

+9 −3

Original line number	Diff line number	Diff line
		@@ -92,6 +92,7 @@ import static android.provider.Settings.Global.DEBUG_APP;
		import static android.provider.Settings.Global.NETWORK_ACCESS_TIMEOUT_MS;
		import static android.provider.Settings.Global.WAIT_FOR_DEBUGGER;
		import static android.text.format.DateUtils.DAY_IN_MILLIS;
		import static android.util.FeatureFlagUtils.SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS;

		import static com.android.internal.protolog.ProtoLogGroup.WM_DEBUG_CONFIGURATION;
		import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
		@@ -300,6 +301,7 @@ import android.text.style.SuggestionSpan;
		import android.util.ArrayMap;
		import android.util.ArraySet;
		import android.util.EventLog;
		import android.util.FeatureFlagUtils;
		import android.util.IntArray;
		import android.util.Log;
		import android.util.Pair;
		@@ -14276,6 +14278,8 @@ public class ActivityManagerService extends IActivityManager.Stub
		private void checkExcessivePowerUsage() {
		updateCpuStatsNow();

		final boolean monitorPhantomProcs = mSystemReady && FeatureFlagUtils.isEnabled(mContext,
		SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS);
		synchronized (mProcLock) {
		final boolean doCpuKills = mLastPowerCheckUptime != 0;
		final long curUptime = SystemClock.uptimeMillis();
		@@ -14301,10 +14305,12 @@ public class ActivityManagerService extends IActivityManager.Stub

		updateAppProcessCpuTimeLPr(uptimeSince, doCpuKills, checkDur, cpuLimit, app);

		if (monitorPhantomProcs) {
		// Also check the phantom processes if there is any
		updatePhantomProcessCpuTimeLPr(
		uptimeSince, doCpuKills, checkDur, cpuLimit, app);
		}
		}
		});
		}
		}

services/core/java/com/android/server/am/AppProfiler.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.server.am;
		import static android.app.ActivityManager.PROCESS_STATE_NONEXISTENT;
		import static android.os.IServiceManager.DUMP_FLAG_PRIORITY_CRITICAL;
		import static android.os.Process.FIRST_APPLICATION_UID;
		import static android.util.FeatureFlagUtils.SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS;

		import static com.android.internal.app.procstats.ProcessStats.ADJ_MEM_FACTOR_CRITICAL;
		import static com.android.internal.app.procstats.ProcessStats.ADJ_MEM_FACTOR_LOW;
		@@ -77,6 +78,7 @@ import android.provider.DeviceConfig.Properties;
		import android.text.TextUtils;
		import android.util.ArrayMap;
		import android.util.DebugUtils;
		import android.util.FeatureFlagUtils;
		import android.util.Pair;
		import android.util.Slog;
		import android.util.SparseArray;
		@@ -1783,6 +1785,8 @@ public class AppProfiler {
		}

		void updateCpuStatsNow() {
		final boolean monitorPhantomProcs = mService.mSystemReady && FeatureFlagUtils.isEnabled(
		mService.mContext, SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS);
		synchronized (mProcessCpuTracker) {
		mProcessCpuMutexFree.set(false);
		final long now = SystemClock.uptimeMillis();
		@@ -1821,7 +1825,7 @@ public class AppProfiler {
		}
		}

		if (haveNewCpuStats) {
		if (monitorPhantomProcs && haveNewCpuStats) {
		mService.mPhantomProcessList.updateProcessCpuStatesLocked(mProcessCpuTracker);
		}

services/core/java/com/android/server/am/PhantomProcessList.java

+6 −0

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package com.android.server.am;

		import static android.os.MessageQueue.OnFileDescriptorEventListener.EVENT_ERROR;
		import static android.os.MessageQueue.OnFileDescriptorEventListener.EVENT_INPUT;
		import static android.util.FeatureFlagUtils.SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS;

		import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESSES;
		import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
		@@ -28,6 +29,7 @@ import android.app.ApplicationExitInfo.SubReason;
		import android.os.Handler;
		import android.os.Process;
		import android.os.StrictMode;
		import android.util.FeatureFlagUtils;
		import android.util.Slog;
		import android.util.SparseArray;

		@@ -419,6 +421,10 @@ public final class PhantomProcessList {
		* order of the oom adjs of their parent process.
		*/
		void trimPhantomProcessesIfNecessary() {
		if (!mService.mSystemReady \|\| !FeatureFlagUtils.isEnabled(mService.mContext,
		SETTINGS_ENABLE_MONITOR_PHANTOM_PROCS)) {
		return;
		}
		synchronized (mService.mProcLock) {
		synchronized (mLock) {
		mTrimPhantomProcessScheduled = false;