| /* |
| * Copyright (C) 2017 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 com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER_QUICK; |
| |
| import android.app.ActivityThread; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Build; |
| import android.os.Handler; |
| import android.provider.DeviceConfig; |
| import android.provider.DeviceConfig.OnPropertiesChangedListener; |
| import android.provider.DeviceConfig.Properties; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| import android.text.TextUtils.SimpleStringSplitter; |
| import android.util.ArraySet; |
| import android.util.KeyValueListParser; |
| import android.util.Slog; |
| |
| import java.io.PrintWriter; |
| |
| /** |
| * Settings constants that can modify the activity manager's behavior. |
| */ |
| final class ActivityManagerConstants extends ContentObserver { |
| private static final String TAG = "ActivityManagerConstants"; |
| |
| // Key names stored in the settings value. |
| private static final String KEY_BACKGROUND_SETTLE_TIME = "background_settle_time"; |
| private static final String KEY_FGSERVICE_MIN_SHOWN_TIME |
| = "fgservice_min_shown_time"; |
| private static final String KEY_FGSERVICE_MIN_REPORT_TIME |
| = "fgservice_min_report_time"; |
| private static final String KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME |
| = "fgservice_screen_on_before_time"; |
| private static final String KEY_FGSERVICE_SCREEN_ON_AFTER_TIME |
| = "fgservice_screen_on_after_time"; |
| private static final String KEY_CONTENT_PROVIDER_RETAIN_TIME = "content_provider_retain_time"; |
| private static final String KEY_GC_TIMEOUT = "gc_timeout"; |
| private static final String KEY_GC_MIN_INTERVAL = "gc_min_interval"; |
| private static final String KEY_FULL_PSS_MIN_INTERVAL = "full_pss_min_interval"; |
| private static final String KEY_FULL_PSS_LOWERED_INTERVAL = "full_pss_lowered_interval"; |
| private static final String KEY_POWER_CHECK_INTERVAL = "power_check_interval"; |
| private static final String KEY_POWER_CHECK_MAX_CPU_1 = "power_check_max_cpu_1"; |
| private static final String KEY_POWER_CHECK_MAX_CPU_2 = "power_check_max_cpu_2"; |
| private static final String KEY_POWER_CHECK_MAX_CPU_3 = "power_check_max_cpu_3"; |
| private static final String KEY_POWER_CHECK_MAX_CPU_4 = "power_check_max_cpu_4"; |
| private static final String KEY_SERVICE_USAGE_INTERACTION_TIME |
| = "service_usage_interaction_time"; |
| private static final String KEY_USAGE_STATS_INTERACTION_INTERVAL |
| = "usage_stats_interaction_interval"; |
| static final String KEY_SERVICE_RESTART_DURATION = "service_restart_duration"; |
| static final String KEY_SERVICE_RESET_RUN_DURATION = "service_reset_run_duration"; |
| static final String KEY_SERVICE_RESTART_DURATION_FACTOR = "service_restart_duration_factor"; |
| static final String KEY_SERVICE_MIN_RESTART_TIME_BETWEEN = "service_min_restart_time_between"; |
| static final String KEY_MAX_SERVICE_INACTIVITY = "service_max_inactivity"; |
| static final String KEY_BG_START_TIMEOUT = "service_bg_start_timeout"; |
| static final String KEY_SERVICE_BG_ACTIVITY_START_TIMEOUT = "service_bg_activity_start_timeout"; |
| static final String KEY_BOUND_SERVICE_CRASH_RESTART_DURATION = "service_crash_restart_duration"; |
| static final String KEY_BOUND_SERVICE_CRASH_MAX_RETRY = "service_crash_max_retry"; |
| static final String KEY_PROCESS_START_ASYNC = "process_start_async"; |
| static final String KEY_MEMORY_INFO_THROTTLE_TIME = "memory_info_throttle_time"; |
| static final String KEY_TOP_TO_FGS_GRACE_DURATION = "top_to_fgs_grace_duration"; |
| |
| private static final int DEFAULT_MAX_CACHED_PROCESSES = 32; |
| private static final long DEFAULT_BACKGROUND_SETTLE_TIME = 60*1000; |
| private static final long DEFAULT_FGSERVICE_MIN_SHOWN_TIME = 2*1000; |
| private static final long DEFAULT_FGSERVICE_MIN_REPORT_TIME = 3*1000; |
| private static final long DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME = 1*1000; |
| private static final long DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME = 5*1000; |
| private static final long DEFAULT_CONTENT_PROVIDER_RETAIN_TIME = 20*1000; |
| private static final long DEFAULT_GC_TIMEOUT = 5*1000; |
| private static final long DEFAULT_GC_MIN_INTERVAL = 60*1000; |
| private static final long DEFAULT_FULL_PSS_MIN_INTERVAL = 20*60*1000; |
| private static final long DEFAULT_FULL_PSS_LOWERED_INTERVAL = 5*60*1000; |
| private static final long DEFAULT_POWER_CHECK_INTERVAL = (DEBUG_POWER_QUICK ? 1 : 5) * 60*1000; |
| private static final int DEFAULT_POWER_CHECK_MAX_CPU_1 = 25; |
| private static final int DEFAULT_POWER_CHECK_MAX_CPU_2 = 25; |
| private static final int DEFAULT_POWER_CHECK_MAX_CPU_3 = 10; |
| private static final int DEFAULT_POWER_CHECK_MAX_CPU_4 = 2; |
| private static final long DEFAULT_SERVICE_USAGE_INTERACTION_TIME = 30*60*1000; |
| private static final long DEFAULT_USAGE_STATS_INTERACTION_INTERVAL = 2*60*60*1000L; |
| private static final long DEFAULT_SERVICE_RESTART_DURATION = 1*1000; |
| private static final long DEFAULT_SERVICE_RESET_RUN_DURATION = 60*1000; |
| private static final int DEFAULT_SERVICE_RESTART_DURATION_FACTOR = 4; |
| private static final long DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN = 10*1000; |
| private static final long DEFAULT_MAX_SERVICE_INACTIVITY = 30*60*1000; |
| private static final long DEFAULT_BG_START_TIMEOUT = 15*1000; |
| private static final long DEFAULT_SERVICE_BG_ACTIVITY_START_TIMEOUT = 10_000; |
| private static final long DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION = 30*60_000; |
| private static final int DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY = 16; |
| private static final boolean DEFAULT_PROCESS_START_ASYNC = true; |
| private static final long DEFAULT_MEMORY_INFO_THROTTLE_TIME = 5*60*1000; |
| private static final long DEFAULT_TOP_TO_FGS_GRACE_DURATION = 15 * 1000; |
| |
| // Flag stored in the DeviceConfig API. |
| /** |
| * Maximum number of cached processes. |
| */ |
| private static final String KEY_MAX_CACHED_PROCESSES = "max_cached_processes"; |
| |
| /** |
| * Default value for mFlagBackgroundActivityStartsEnabled if not explicitly set in |
| * Settings.Global. This allows it to be set experimentally unless it has been |
| * enabled/disabled in developer options. Defaults to false. |
| */ |
| private static final String KEY_DEFAULT_BACKGROUND_ACTIVITY_STARTS_ENABLED = |
| "default_background_activity_starts_enabled"; |
| |
| /** |
| * The packages temporarily whitelisted to be able to start activities from background. |
| * The list of packages is {@code ":"} colon delimited. |
| */ |
| private static final String KEY_BACKGROUND_ACTIVITY_STARTS_PACKAGE_NAMES_WHITELIST = |
| "background_activity_starts_package_names_whitelist"; |
| |
| |
| // Maximum number of cached processes we will allow. |
| public int MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES; |
| |
| // This is the amount of time we allow an app to settle after it goes into the background, |
| // before we start restricting what it can do. |
| public long BACKGROUND_SETTLE_TIME = DEFAULT_BACKGROUND_SETTLE_TIME; |
| |
| // The minimum time we allow a foreground service to run with a notification and the |
| // screen on without otherwise telling the user about it. (If it runs for less than this, |
| // it will still be reported to the user as a running app for at least this amount of time.) |
| public long FGSERVICE_MIN_SHOWN_TIME = DEFAULT_FGSERVICE_MIN_SHOWN_TIME; |
| |
| // If a foreground service is shown for less than FGSERVICE_MIN_SHOWN_TIME, we will display |
| // the background app running notification about it for at least this amount of time (if it |
| // is larger than the remaining shown time). |
| public long FGSERVICE_MIN_REPORT_TIME = DEFAULT_FGSERVICE_MIN_REPORT_TIME; |
| |
| // The minimum amount of time the foreground service needs to have remain being shown |
| // before the screen goes on for us to consider it not worth showing to the user. That is |
| // if an app has a foreground service that stops itself this amount of time or more before |
| // the user turns on the screen, we will just let it go without the user being told about it. |
| public long FGSERVICE_SCREEN_ON_BEFORE_TIME = DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME; |
| |
| // The minimum amount of time a foreground service should remain reported to the user if |
| // it is stopped when the screen turns on. This is the time from when the screen turns |
| // on until we will stop reporting it. |
| public long FGSERVICE_SCREEN_ON_AFTER_TIME = DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME; |
| |
| // How long we will retain processes hosting content providers in the "last activity" |
| // state before allowing them to drop down to the regular cached LRU list. This is |
| // to avoid thrashing of provider processes under low memory situations. |
| long CONTENT_PROVIDER_RETAIN_TIME = DEFAULT_CONTENT_PROVIDER_RETAIN_TIME; |
| |
| // How long to wait after going idle before forcing apps to GC. |
| long GC_TIMEOUT = DEFAULT_GC_TIMEOUT; |
| |
| // The minimum amount of time between successive GC requests for a process. |
| long GC_MIN_INTERVAL = DEFAULT_GC_MIN_INTERVAL; |
| |
| // The minimum amount of time between successive PSS requests for a process. |
| long FULL_PSS_MIN_INTERVAL = DEFAULT_FULL_PSS_MIN_INTERVAL; |
| |
| // The minimum amount of time between successive PSS requests for a process |
| // when the request is due to the memory state being lowered. |
| long FULL_PSS_LOWERED_INTERVAL = DEFAULT_FULL_PSS_LOWERED_INTERVAL; |
| |
| // The minimum sample duration we will allow before deciding we have |
| // enough data on CPU usage to start killing things. |
| long POWER_CHECK_INTERVAL = DEFAULT_POWER_CHECK_INTERVAL; |
| |
| // The maximum CPU (as a percentage) a process is allowed to use over the first |
| // power check interval that it is cached. |
| int POWER_CHECK_MAX_CPU_1 = DEFAULT_POWER_CHECK_MAX_CPU_1; |
| |
| // The maximum CPU (as a percentage) a process is allowed to use over the second |
| // power check interval that it is cached. The home app will never check for less |
| // CPU than this (it will not test against the 3 or 4 levels). |
| int POWER_CHECK_MAX_CPU_2 = DEFAULT_POWER_CHECK_MAX_CPU_2; |
| |
| // The maximum CPU (as a percentage) a process is allowed to use over the third |
| // power check interval that it is cached. |
| int POWER_CHECK_MAX_CPU_3 = DEFAULT_POWER_CHECK_MAX_CPU_3; |
| |
| // The maximum CPU (as a percentage) a process is allowed to use over the fourth |
| // power check interval that it is cached. |
| int POWER_CHECK_MAX_CPU_4 = DEFAULT_POWER_CHECK_MAX_CPU_4; |
| |
| // This is the amount of time an app needs to be running a foreground service before |
| // we will consider it to be doing interaction for usage stats. |
| long SERVICE_USAGE_INTERACTION_TIME = DEFAULT_SERVICE_USAGE_INTERACTION_TIME; |
| |
| // Maximum amount of time we will allow to elapse before re-reporting usage stats |
| // interaction with foreground processes. |
| long USAGE_STATS_INTERACTION_INTERVAL = DEFAULT_USAGE_STATS_INTERACTION_INTERVAL; |
| |
| // How long a service needs to be running until restarting its process |
| // is no longer considered to be a relaunch of the service. |
| public long SERVICE_RESTART_DURATION = DEFAULT_SERVICE_RESTART_DURATION; |
| |
| // How long a service needs to be running until it will start back at |
| // SERVICE_RESTART_DURATION after being killed. |
| public long SERVICE_RESET_RUN_DURATION = DEFAULT_SERVICE_RESET_RUN_DURATION; |
| |
| // Multiplying factor to increase restart duration time by, for each time |
| // a service is killed before it has run for SERVICE_RESET_RUN_DURATION. |
| public int SERVICE_RESTART_DURATION_FACTOR = DEFAULT_SERVICE_RESTART_DURATION_FACTOR; |
| |
| // The minimum amount of time between restarting services that we allow. |
| // That is, when multiple services are restarting, we won't allow each |
| // to restart less than this amount of time from the last one. |
| public long SERVICE_MIN_RESTART_TIME_BETWEEN = DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN; |
| |
| // Maximum amount of time for there to be no activity on a service before |
| // we consider it non-essential and allow its process to go on the |
| // LRU background list. |
| public long MAX_SERVICE_INACTIVITY = DEFAULT_MAX_SERVICE_INACTIVITY; |
| |
| // How long we wait for a background started service to stop itself before |
| // allowing the next pending start to run. |
| public long BG_START_TIMEOUT = DEFAULT_BG_START_TIMEOUT; |
| |
| // For how long after a whitelisted service's start its process can start a background activity |
| public long SERVICE_BG_ACTIVITY_START_TIMEOUT = DEFAULT_SERVICE_BG_ACTIVITY_START_TIMEOUT; |
| |
| // Initial backoff delay for retrying bound foreground services |
| public long BOUND_SERVICE_CRASH_RESTART_DURATION = DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION; |
| |
| // Maximum number of retries for bound foreground services that crash soon after start |
| public long BOUND_SERVICE_MAX_CRASH_RETRY = DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY; |
| |
| // Indicates if the processes need to be started asynchronously. |
| public boolean FLAG_PROCESS_START_ASYNC = DEFAULT_PROCESS_START_ASYNC; |
| |
| // The minimum time we allow between requests for the MemoryInfo of a process to |
| // throttle requests from apps. |
| public long MEMORY_INFO_THROTTLE_TIME = DEFAULT_MEMORY_INFO_THROTTLE_TIME; |
| |
| // Allow app just moving from TOP to FOREGROUND_SERVICE to stay in a higher adj value for |
| // this long. |
| public long TOP_TO_FGS_GRACE_DURATION = DEFAULT_TOP_TO_FGS_GRACE_DURATION; |
| |
| // Indicates whether the activity starts logging is enabled. |
| // Controlled by Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED |
| volatile boolean mFlagActivityStartsLoggingEnabled; |
| |
| // Indicates whether the background activity starts is enabled. |
| // Controlled by Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED. |
| // If not set explicitly the default is controlled by DeviceConfig. |
| volatile boolean mFlagBackgroundActivityStartsEnabled; |
| |
| volatile ArraySet<String> mPackageNamesWhitelistedForBgActivityStarts = new ArraySet<>(); |
| |
| private final ActivityManagerService mService; |
| private ContentResolver mResolver; |
| private final KeyValueListParser mParser = new KeyValueListParser(','); |
| |
| private int mOverrideMaxCachedProcesses = -1; |
| |
| // The maximum number of cached processes we will keep around before killing them. |
| // NOTE: this constant is *only* a control to not let us go too crazy with |
| // keeping around processes on devices with large amounts of RAM. For devices that |
| // are tighter on RAM, the out of memory killer is responsible for killing background |
| // processes as RAM is needed, and we should *never* be relying on this limit to |
| // kill them. Also note that this limit only applies to cached background processes; |
| // we have no limit on the number of service, visible, foreground, or other such |
| // processes and the number of those processes does not count against the cached |
| // process limit. |
| public int CUR_MAX_CACHED_PROCESSES; |
| |
| // The maximum number of empty app processes we will let sit around. |
| public int CUR_MAX_EMPTY_PROCESSES; |
| |
| // The number of empty apps at which we don't consider it necessary to do |
| // memory trimming. |
| public int CUR_TRIM_EMPTY_PROCESSES; |
| |
| // The number of cached at which we don't consider it necessary to do |
| // memory trimming. |
| public int CUR_TRIM_CACHED_PROCESSES; |
| |
| private static final long MIN_AUTOMATIC_HEAP_DUMP_PSS_THRESHOLD_BYTES = 100 * 1024; // 100 KB |
| |
| private final boolean mSystemServerAutomaticHeapDumpEnabled; |
| |
| /** Package to report to when the memory usage exceeds the limit. */ |
| private final String mSystemServerAutomaticHeapDumpPackageName; |
| |
| /** Byte limit for dump heap monitoring. */ |
| private long mSystemServerAutomaticHeapDumpPssThresholdBytes; |
| |
| private static final Uri ACTIVITY_MANAGER_CONSTANTS_URI = Settings.Global.getUriFor( |
| Settings.Global.ACTIVITY_MANAGER_CONSTANTS); |
| |
| private static final Uri ACTIVITY_STARTS_LOGGING_ENABLED_URI = Settings.Global.getUriFor( |
| Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED); |
| |
| private static final Uri BACKGROUND_ACTIVITY_STARTS_ENABLED_URI = |
| Settings.Global.getUriFor( |
| Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED); |
| |
| private static final Uri ENABLE_AUTOMATIC_SYSTEM_SERVER_HEAP_DUMPS_URI = |
| Settings.Global.getUriFor(Settings.Global.ENABLE_AUTOMATIC_SYSTEM_SERVER_HEAP_DUMPS); |
| |
| private final OnPropertiesChangedListener mOnDeviceConfigChangedListener = |
| new OnPropertiesChangedListener() { |
| @Override |
| public void onPropertiesChanged(Properties properties) { |
| for (String name : properties.getKeyset()) { |
| if (name == null) { |
| return; |
| } |
| switch (name) { |
| case KEY_MAX_CACHED_PROCESSES: |
| updateMaxCachedProcesses(); |
| break; |
| case KEY_DEFAULT_BACKGROUND_ACTIVITY_STARTS_ENABLED: |
| case KEY_BACKGROUND_ACTIVITY_STARTS_PACKAGE_NAMES_WHITELIST: |
| updateBackgroundActivityStarts(); |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| }; |
| |
| ActivityManagerConstants(Context context, ActivityManagerService service, Handler handler) { |
| super(handler); |
| mService = service; |
| mSystemServerAutomaticHeapDumpEnabled = Build.IS_DEBUGGABLE |
| && context.getResources().getBoolean( |
| com.android.internal.R.bool.config_debugEnableAutomaticSystemServerHeapDumps); |
| mSystemServerAutomaticHeapDumpPackageName = context.getPackageName(); |
| mSystemServerAutomaticHeapDumpPssThresholdBytes = Math.max( |
| MIN_AUTOMATIC_HEAP_DUMP_PSS_THRESHOLD_BYTES, |
| context.getResources().getInteger( |
| com.android.internal.R.integer.config_debugSystemServerPssThresholdBytes)); |
| } |
| |
| public void start(ContentResolver resolver) { |
| mResolver = resolver; |
| mResolver.registerContentObserver(ACTIVITY_MANAGER_CONSTANTS_URI, false, this); |
| mResolver.registerContentObserver(ACTIVITY_STARTS_LOGGING_ENABLED_URI, false, this); |
| mResolver.registerContentObserver(BACKGROUND_ACTIVITY_STARTS_ENABLED_URI, false, this); |
| if (mSystemServerAutomaticHeapDumpEnabled) { |
| mResolver.registerContentObserver(ENABLE_AUTOMATIC_SYSTEM_SERVER_HEAP_DUMPS_URI, |
| false, this); |
| } |
| updateConstants(); |
| if (mSystemServerAutomaticHeapDumpEnabled) { |
| updateEnableAutomaticSystemServerHeapDumps(); |
| } |
| DeviceConfig.addOnPropertiesChangedListener(DeviceConfig.NAMESPACE_ACTIVITY_MANAGER, |
| ActivityThread.currentApplication().getMainExecutor(), |
| mOnDeviceConfigChangedListener); |
| updateMaxCachedProcesses(); |
| updateActivityStartsLoggingEnabled(); |
| updateBackgroundActivityStarts(); |
| } |
| |
| public void setOverrideMaxCachedProcesses(int value) { |
| mOverrideMaxCachedProcesses = value; |
| updateMaxCachedProcesses(); |
| } |
| |
| public int getOverrideMaxCachedProcesses() { |
| return mOverrideMaxCachedProcesses; |
| } |
| |
| public static int computeEmptyProcessLimit(int totalProcessLimit) { |
| return totalProcessLimit/2; |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| if (uri == null) return; |
| if (ACTIVITY_MANAGER_CONSTANTS_URI.equals(uri)) { |
| updateConstants(); |
| } else if (ACTIVITY_STARTS_LOGGING_ENABLED_URI.equals(uri)) { |
| updateActivityStartsLoggingEnabled(); |
| } else if (BACKGROUND_ACTIVITY_STARTS_ENABLED_URI.equals(uri)) { |
| updateBackgroundActivityStarts(); |
| } else if (ENABLE_AUTOMATIC_SYSTEM_SERVER_HEAP_DUMPS_URI.equals(uri)) { |
| updateEnableAutomaticSystemServerHeapDumps(); |
| } |
| } |
| |
| private void updateConstants() { |
| final String setting = Settings.Global.getString(mResolver, |
| Settings.Global.ACTIVITY_MANAGER_CONSTANTS); |
| synchronized (mService) { |
| try { |
| mParser.setString(setting); |
| } catch (IllegalArgumentException e) { |
| // Failed to parse the settings string, log this and move on |
| // with defaults. |
| Slog.e("ActivityManagerConstants", "Bad activity manager config settings", e); |
| } |
| BACKGROUND_SETTLE_TIME = mParser.getLong(KEY_BACKGROUND_SETTLE_TIME, |
| DEFAULT_BACKGROUND_SETTLE_TIME); |
| FGSERVICE_MIN_SHOWN_TIME = mParser.getLong(KEY_FGSERVICE_MIN_SHOWN_TIME, |
| DEFAULT_FGSERVICE_MIN_SHOWN_TIME); |
| FGSERVICE_MIN_REPORT_TIME = mParser.getLong(KEY_FGSERVICE_MIN_REPORT_TIME, |
| DEFAULT_FGSERVICE_MIN_REPORT_TIME); |
| FGSERVICE_SCREEN_ON_BEFORE_TIME = mParser.getLong(KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME, |
| DEFAULT_FGSERVICE_SCREEN_ON_BEFORE_TIME); |
| FGSERVICE_SCREEN_ON_AFTER_TIME = mParser.getLong(KEY_FGSERVICE_SCREEN_ON_AFTER_TIME, |
| DEFAULT_FGSERVICE_SCREEN_ON_AFTER_TIME); |
| CONTENT_PROVIDER_RETAIN_TIME = mParser.getLong(KEY_CONTENT_PROVIDER_RETAIN_TIME, |
| DEFAULT_CONTENT_PROVIDER_RETAIN_TIME); |
| GC_TIMEOUT = mParser.getLong(KEY_GC_TIMEOUT, |
| DEFAULT_GC_TIMEOUT); |
| GC_MIN_INTERVAL = mParser.getLong(KEY_GC_MIN_INTERVAL, |
| DEFAULT_GC_MIN_INTERVAL); |
| FULL_PSS_MIN_INTERVAL = mParser.getLong(KEY_FULL_PSS_MIN_INTERVAL, |
| DEFAULT_FULL_PSS_MIN_INTERVAL); |
| FULL_PSS_LOWERED_INTERVAL = mParser.getLong(KEY_FULL_PSS_LOWERED_INTERVAL, |
| DEFAULT_FULL_PSS_LOWERED_INTERVAL); |
| POWER_CHECK_INTERVAL = mParser.getLong(KEY_POWER_CHECK_INTERVAL, |
| DEFAULT_POWER_CHECK_INTERVAL); |
| POWER_CHECK_MAX_CPU_1 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_1, |
| DEFAULT_POWER_CHECK_MAX_CPU_1); |
| POWER_CHECK_MAX_CPU_2 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_2, |
| DEFAULT_POWER_CHECK_MAX_CPU_2); |
| POWER_CHECK_MAX_CPU_3 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_3, |
| DEFAULT_POWER_CHECK_MAX_CPU_3); |
| POWER_CHECK_MAX_CPU_4 = mParser.getInt(KEY_POWER_CHECK_MAX_CPU_4, |
| DEFAULT_POWER_CHECK_MAX_CPU_4); |
| SERVICE_USAGE_INTERACTION_TIME = mParser.getLong(KEY_SERVICE_USAGE_INTERACTION_TIME, |
| DEFAULT_SERVICE_USAGE_INTERACTION_TIME); |
| USAGE_STATS_INTERACTION_INTERVAL = mParser.getLong(KEY_USAGE_STATS_INTERACTION_INTERVAL, |
| DEFAULT_USAGE_STATS_INTERACTION_INTERVAL); |
| SERVICE_RESTART_DURATION = mParser.getLong(KEY_SERVICE_RESTART_DURATION, |
| DEFAULT_SERVICE_RESTART_DURATION); |
| SERVICE_RESET_RUN_DURATION = mParser.getLong(KEY_SERVICE_RESET_RUN_DURATION, |
| DEFAULT_SERVICE_RESET_RUN_DURATION); |
| SERVICE_RESTART_DURATION_FACTOR = mParser.getInt(KEY_SERVICE_RESTART_DURATION_FACTOR, |
| DEFAULT_SERVICE_RESTART_DURATION_FACTOR); |
| SERVICE_MIN_RESTART_TIME_BETWEEN = mParser.getLong(KEY_SERVICE_MIN_RESTART_TIME_BETWEEN, |
| DEFAULT_SERVICE_MIN_RESTART_TIME_BETWEEN); |
| MAX_SERVICE_INACTIVITY = mParser.getLong(KEY_MAX_SERVICE_INACTIVITY, |
| DEFAULT_MAX_SERVICE_INACTIVITY); |
| BG_START_TIMEOUT = mParser.getLong(KEY_BG_START_TIMEOUT, |
| DEFAULT_BG_START_TIMEOUT); |
| SERVICE_BG_ACTIVITY_START_TIMEOUT = mParser.getLong( |
| KEY_SERVICE_BG_ACTIVITY_START_TIMEOUT, |
| DEFAULT_SERVICE_BG_ACTIVITY_START_TIMEOUT); |
| BOUND_SERVICE_CRASH_RESTART_DURATION = mParser.getLong( |
| KEY_BOUND_SERVICE_CRASH_RESTART_DURATION, |
| DEFAULT_BOUND_SERVICE_CRASH_RESTART_DURATION); |
| BOUND_SERVICE_MAX_CRASH_RETRY = mParser.getInt(KEY_BOUND_SERVICE_CRASH_MAX_RETRY, |
| DEFAULT_BOUND_SERVICE_CRASH_MAX_RETRY); |
| FLAG_PROCESS_START_ASYNC = mParser.getBoolean(KEY_PROCESS_START_ASYNC, |
| DEFAULT_PROCESS_START_ASYNC); |
| MEMORY_INFO_THROTTLE_TIME = mParser.getLong(KEY_MEMORY_INFO_THROTTLE_TIME, |
| DEFAULT_MEMORY_INFO_THROTTLE_TIME); |
| TOP_TO_FGS_GRACE_DURATION = mParser.getDurationMillis(KEY_TOP_TO_FGS_GRACE_DURATION, |
| DEFAULT_TOP_TO_FGS_GRACE_DURATION); |
| |
| // For new flags that are intended for server-side experiments, please use the new |
| // DeviceConfig package. |
| |
| updateMaxCachedProcesses(); |
| } |
| } |
| |
| private void updateActivityStartsLoggingEnabled() { |
| mFlagActivityStartsLoggingEnabled = Settings.Global.getInt(mResolver, |
| Settings.Global.ACTIVITY_STARTS_LOGGING_ENABLED, 1) == 1; |
| } |
| |
| private void updateBackgroundActivityStarts() { |
| String whitelistedPackageNames = null; |
| int settingsValue = Settings.Global.getInt(mResolver, |
| Settings.Global.BACKGROUND_ACTIVITY_STARTS_ENABLED, -1); |
| |
| // If the user has explicitly enabled or disabled, that affects all apps. |
| // Otherwise we take the default state and whitelist from DeviceConfig. |
| if (settingsValue >= 0) { |
| mFlagBackgroundActivityStartsEnabled = settingsValue != 0; |
| } else { |
| boolean enabledInDeviceConfig = DeviceConfig.getBoolean( |
| DeviceConfig.NAMESPACE_ACTIVITY_MANAGER, |
| KEY_DEFAULT_BACKGROUND_ACTIVITY_STARTS_ENABLED, |
| /*defaultValue*/ false); |
| mFlagBackgroundActivityStartsEnabled = enabledInDeviceConfig; |
| if (!enabledInDeviceConfig) { |
| whitelistedPackageNames = DeviceConfig.getProperty( |
| DeviceConfig.NAMESPACE_ACTIVITY_MANAGER, |
| KEY_BACKGROUND_ACTIVITY_STARTS_PACKAGE_NAMES_WHITELIST); |
| } |
| } |
| if (TextUtils.isEmpty(whitelistedPackageNames)) { |
| if (!mPackageNamesWhitelistedForBgActivityStarts.isEmpty()) { |
| mPackageNamesWhitelistedForBgActivityStarts = new ArraySet<>(); |
| } |
| } else { |
| ArraySet<String> newSet = new ArraySet<>(); |
| SimpleStringSplitter splitter = new SimpleStringSplitter(':'); |
| splitter.setString(whitelistedPackageNames); |
| while (splitter.hasNext()) { |
| newSet.add(splitter.next()); |
| } |
| mPackageNamesWhitelistedForBgActivityStarts = newSet; |
| } |
| } |
| |
| private void updateEnableAutomaticSystemServerHeapDumps() { |
| if (!mSystemServerAutomaticHeapDumpEnabled) { |
| Slog.wtf(TAG, |
| "updateEnableAutomaticSystemServerHeapDumps called when leak detection " |
| + "disabled"); |
| return; |
| } |
| // Monitoring is on by default, so if the setting hasn't been set by the user, |
| // monitoring should be on. |
| final boolean enabled = Settings.Global.getInt(mResolver, |
| Settings.Global.ENABLE_AUTOMATIC_SYSTEM_SERVER_HEAP_DUMPS, 1) == 1; |
| |
| // Setting the threshold to 0 stops the checking. |
| final long threshold = enabled ? mSystemServerAutomaticHeapDumpPssThresholdBytes : 0; |
| mService.setDumpHeapDebugLimit(null, 0, threshold, |
| mSystemServerAutomaticHeapDumpPackageName); |
| } |
| |
| private void updateMaxCachedProcesses() { |
| String maxCachedProcessesFlag = DeviceConfig.getProperty( |
| DeviceConfig.NAMESPACE_ACTIVITY_MANAGER, KEY_MAX_CACHED_PROCESSES); |
| try { |
| CUR_MAX_CACHED_PROCESSES = mOverrideMaxCachedProcesses < 0 |
| ? (TextUtils.isEmpty(maxCachedProcessesFlag) |
| ? DEFAULT_MAX_CACHED_PROCESSES : Integer.parseInt(maxCachedProcessesFlag)) |
| : mOverrideMaxCachedProcesses; |
| } catch (NumberFormatException e) { |
| // Bad flag value from Phenotype, revert to default. |
| Slog.e(TAG, |
| "Unable to parse flag for max_cached_processes: " + maxCachedProcessesFlag, e); |
| CUR_MAX_CACHED_PROCESSES = DEFAULT_MAX_CACHED_PROCESSES; |
| } |
| CUR_MAX_EMPTY_PROCESSES = computeEmptyProcessLimit(CUR_MAX_CACHED_PROCESSES); |
| |
| // Note the trim levels do NOT depend on the override process limit, we want |
| // to consider the same level the point where we do trimming regardless of any |
| // additional enforced limit. |
| final int rawMaxEmptyProcesses = computeEmptyProcessLimit(MAX_CACHED_PROCESSES); |
| CUR_TRIM_EMPTY_PROCESSES = rawMaxEmptyProcesses/2; |
| CUR_TRIM_CACHED_PROCESSES = (MAX_CACHED_PROCESSES-rawMaxEmptyProcesses)/3; |
| } |
| |
| void dump(PrintWriter pw) { |
| pw.println("ACTIVITY MANAGER SETTINGS (dumpsys activity settings) " |
| + Settings.Global.ACTIVITY_MANAGER_CONSTANTS + ":"); |
| |
| pw.print(" "); pw.print(KEY_MAX_CACHED_PROCESSES); pw.print("="); |
| pw.println(MAX_CACHED_PROCESSES); |
| pw.print(" "); pw.print(KEY_BACKGROUND_SETTLE_TIME); pw.print("="); |
| pw.println(BACKGROUND_SETTLE_TIME); |
| pw.print(" "); pw.print(KEY_FGSERVICE_MIN_SHOWN_TIME); pw.print("="); |
| pw.println(FGSERVICE_MIN_SHOWN_TIME); |
| pw.print(" "); pw.print(KEY_FGSERVICE_MIN_REPORT_TIME); pw.print("="); |
| pw.println(FGSERVICE_MIN_REPORT_TIME); |
| pw.print(" "); pw.print(KEY_FGSERVICE_SCREEN_ON_BEFORE_TIME); pw.print("="); |
| pw.println(FGSERVICE_SCREEN_ON_BEFORE_TIME); |
| pw.print(" "); pw.print(KEY_FGSERVICE_SCREEN_ON_AFTER_TIME); pw.print("="); |
| pw.println(FGSERVICE_SCREEN_ON_AFTER_TIME); |
| pw.print(" "); pw.print(KEY_CONTENT_PROVIDER_RETAIN_TIME); pw.print("="); |
| pw.println(CONTENT_PROVIDER_RETAIN_TIME); |
| pw.print(" "); pw.print(KEY_GC_TIMEOUT); pw.print("="); |
| pw.println(GC_TIMEOUT); |
| pw.print(" "); pw.print(KEY_GC_MIN_INTERVAL); pw.print("="); |
| pw.println(GC_MIN_INTERVAL); |
| pw.print(" "); pw.print(KEY_FULL_PSS_MIN_INTERVAL); pw.print("="); |
| pw.println(FULL_PSS_MIN_INTERVAL); |
| pw.print(" "); pw.print(KEY_FULL_PSS_LOWERED_INTERVAL); pw.print("="); |
| pw.println(FULL_PSS_LOWERED_INTERVAL); |
| pw.print(" "); pw.print(KEY_POWER_CHECK_INTERVAL); pw.print("="); |
| pw.println(POWER_CHECK_INTERVAL); |
| pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_1); pw.print("="); |
| pw.println(POWER_CHECK_MAX_CPU_1); |
| pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_2); pw.print("="); |
| pw.println(POWER_CHECK_MAX_CPU_2); |
| pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_3); pw.print("="); |
| pw.println(POWER_CHECK_MAX_CPU_3); |
| pw.print(" "); pw.print(KEY_POWER_CHECK_MAX_CPU_4); pw.print("="); |
| pw.println(POWER_CHECK_MAX_CPU_4); |
| pw.print(" "); pw.print(KEY_SERVICE_USAGE_INTERACTION_TIME); pw.print("="); |
| pw.println(SERVICE_USAGE_INTERACTION_TIME); |
| pw.print(" "); pw.print(KEY_USAGE_STATS_INTERACTION_INTERVAL); pw.print("="); |
| pw.println(USAGE_STATS_INTERACTION_INTERVAL); |
| pw.print(" "); pw.print(KEY_SERVICE_RESTART_DURATION); pw.print("="); |
| pw.println(SERVICE_RESTART_DURATION); |
| pw.print(" "); pw.print(KEY_SERVICE_RESET_RUN_DURATION); pw.print("="); |
| pw.println(SERVICE_RESET_RUN_DURATION); |
| pw.print(" "); pw.print(KEY_SERVICE_RESTART_DURATION_FACTOR); pw.print("="); |
| pw.println(SERVICE_RESTART_DURATION_FACTOR); |
| pw.print(" "); pw.print(KEY_SERVICE_MIN_RESTART_TIME_BETWEEN); pw.print("="); |
| pw.println(SERVICE_MIN_RESTART_TIME_BETWEEN); |
| pw.print(" "); pw.print(KEY_MAX_SERVICE_INACTIVITY); pw.print("="); |
| pw.println(MAX_SERVICE_INACTIVITY); |
| pw.print(" "); pw.print(KEY_BG_START_TIMEOUT); pw.print("="); |
| pw.println(BG_START_TIMEOUT); |
| pw.print(" "); pw.print(KEY_SERVICE_BG_ACTIVITY_START_TIMEOUT); pw.print("="); |
| pw.println(SERVICE_BG_ACTIVITY_START_TIMEOUT); |
| pw.print(" "); pw.print(KEY_BOUND_SERVICE_CRASH_RESTART_DURATION); pw.print("="); |
| pw.println(BOUND_SERVICE_CRASH_RESTART_DURATION); |
| pw.print(" "); pw.print(KEY_BOUND_SERVICE_CRASH_MAX_RETRY); pw.print("="); |
| pw.println(BOUND_SERVICE_MAX_CRASH_RETRY); |
| pw.print(" "); pw.print(KEY_PROCESS_START_ASYNC); pw.print("="); |
| pw.println(FLAG_PROCESS_START_ASYNC); |
| pw.print(" "); pw.print(KEY_MEMORY_INFO_THROTTLE_TIME); pw.print("="); |
| pw.println(MEMORY_INFO_THROTTLE_TIME); |
| pw.print(" "); pw.print(KEY_TOP_TO_FGS_GRACE_DURATION); pw.print("="); |
| pw.println(TOP_TO_FGS_GRACE_DURATION); |
| |
| pw.println(); |
| if (mOverrideMaxCachedProcesses >= 0) { |
| pw.print(" mOverrideMaxCachedProcesses="); pw.println(mOverrideMaxCachedProcesses); |
| } |
| pw.print(" CUR_MAX_CACHED_PROCESSES="); pw.println(CUR_MAX_CACHED_PROCESSES); |
| pw.print(" CUR_MAX_EMPTY_PROCESSES="); pw.println(CUR_MAX_EMPTY_PROCESSES); |
| pw.print(" CUR_TRIM_EMPTY_PROCESSES="); pw.println(CUR_TRIM_EMPTY_PROCESSES); |
| pw.print(" CUR_TRIM_CACHED_PROCESSES="); pw.println(CUR_TRIM_CACHED_PROCESSES); |
| } |
| } |