| package com.android.server.am; |
| |
| import static android.app.ActivityManager.START_SUCCESS; |
| import static android.app.ActivityManager.START_TASK_TO_FRONT; |
| import static android.app.ActivityManager.StackId.ASSISTANT_STACK_ID; |
| import static android.app.ActivityManager.StackId.DOCKED_STACK_ID; |
| import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID; |
| import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID; |
| import static android.app.ActivityManager.StackId.INVALID_STACK_ID; |
| import static android.app.ActivityManager.StackId.PINNED_STACK_ID; |
| import static android.app.ActivityManagerInternal.APP_TRANSITION_TIMEOUT; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_ACTIVITY_NAME; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_DELAY_MS; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_DEVICE_UPTIME_SECONDS; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_STARTING_WINDOW_DELAY_MS; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.APP_TRANSITION_WINDOWS_DRAWN_DELAY_MS; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_COLD_LAUNCH; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_HOT_LAUNCH; |
| import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.TYPE_TRANSITION_WARM_LAUNCH; |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM; |
| import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| import static com.android.server.am.ActivityStack.STACK_INVISIBLE; |
| |
| import android.app.ActivityManager.StackId; |
| import android.content.Context; |
| import android.metrics.LogMaker; |
| import android.os.SystemClock; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| |
| import com.android.internal.logging.MetricsLogger; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * Handles logging into Tron. |
| */ |
| class ActivityMetricsLogger { |
| |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "ActivityMetricsLogger" : TAG_AM; |
| |
| // Window modes we are interested in logging. If we ever introduce a new type, we need to add |
| // a value here and increase the {@link #TRON_WINDOW_STATE_VARZ_STRINGS} array. |
| private static final int WINDOW_STATE_STANDARD = 0; |
| private static final int WINDOW_STATE_SIDE_BY_SIDE = 1; |
| private static final int WINDOW_STATE_FREEFORM = 2; |
| private static final int WINDOW_STATE_ASSISTANT = 3; |
| private static final int WINDOW_STATE_INVALID = -1; |
| |
| private static final long INVALID_START_TIME = -1; |
| |
| // Preallocated strings we are sending to tron, so we don't have to allocate a new one every |
| // time we log. |
| private static final String[] TRON_WINDOW_STATE_VARZ_STRINGS = { |
| "window_time_0", "window_time_1", "window_time_2", "window_time_3"}; |
| |
| private int mWindowState = WINDOW_STATE_STANDARD; |
| private long mLastLogTimeSecs; |
| private final ActivityStackSupervisor mSupervisor; |
| private final Context mContext; |
| private final MetricsLogger mMetricsLogger = new MetricsLogger(); |
| |
| private long mCurrentTransitionStartTime = INVALID_START_TIME; |
| |
| private int mCurrentTransitionDeviceUptime; |
| private int mCurrentTransitionDelayMs; |
| private boolean mLoggedTransitionStarting; |
| |
| private final SparseArray<StackTransitionInfo> mStackTransitionInfo = new SparseArray<>(); |
| |
| private final class StackTransitionInfo { |
| private ActivityRecord launchedActivity; |
| private int startResult; |
| private boolean currentTransitionProcessRunning; |
| private int windowsDrawnDelayMs; |
| private int startingWindowDelayMs; |
| private int reason = APP_TRANSITION_TIMEOUT; |
| private boolean loggedWindowsDrawn; |
| private boolean loggedStartingWindowDrawn; |
| } |
| |
| ActivityMetricsLogger(ActivityStackSupervisor supervisor, Context context) { |
| mLastLogTimeSecs = SystemClock.elapsedRealtime() / 1000; |
| mSupervisor = supervisor; |
| mContext = context; |
| } |
| |
| void logWindowState() { |
| final long now = SystemClock.elapsedRealtime() / 1000; |
| if (mWindowState != WINDOW_STATE_INVALID) { |
| // We log even if the window state hasn't changed, because the user might remain in |
| // home/fullscreen move forever and we would like to track this kind of behavior |
| // too. |
| MetricsLogger.count(mContext, TRON_WINDOW_STATE_VARZ_STRINGS[mWindowState], |
| (int) (now - mLastLogTimeSecs)); |
| } |
| mLastLogTimeSecs = now; |
| |
| ActivityStack stack = mSupervisor.getStack(DOCKED_STACK_ID); |
| if (stack != null && stack.getStackVisibilityLocked(null) != STACK_INVISIBLE) { |
| mWindowState = WINDOW_STATE_SIDE_BY_SIDE; |
| return; |
| } |
| mWindowState = WINDOW_STATE_INVALID; |
| stack = mSupervisor.getFocusedStack(); |
| if (stack.mStackId == PINNED_STACK_ID) { |
| stack = mSupervisor.findStackBehind(stack); |
| } |
| if (StackId.isHomeOrRecentsStack(stack.mStackId) |
| || stack.mStackId == FULLSCREEN_WORKSPACE_STACK_ID) { |
| mWindowState = WINDOW_STATE_STANDARD; |
| } else if (stack.mStackId == DOCKED_STACK_ID) { |
| Slog.wtf(TAG, "Docked stack shouldn't be the focused stack, because it reported not" |
| + " being visible."); |
| mWindowState = WINDOW_STATE_INVALID; |
| } else if (stack.mStackId == FREEFORM_WORKSPACE_STACK_ID) { |
| mWindowState = WINDOW_STATE_FREEFORM; |
| } else if (stack.mStackId == ASSISTANT_STACK_ID) { |
| mWindowState = WINDOW_STATE_ASSISTANT; |
| } else if (StackId.isStaticStack(stack.mStackId)) { |
| throw new IllegalStateException("Unknown stack=" + stack); |
| } |
| } |
| |
| /** |
| * Notifies the tracker at the earliest possible point when we are starting to launch an |
| * activity. |
| */ |
| void notifyActivityLaunching() { |
| if (!isAnyTransitionActive()) { |
| mCurrentTransitionStartTime = System.currentTimeMillis(); |
| } |
| } |
| |
| /** |
| * Notifies the tracker that the activity is actually launching. |
| * |
| * @param resultCode one of the ActivityManager.START_* flags, indicating the result of the |
| * launch |
| * @param launchedActivity the activity that is being launched |
| */ |
| void notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity) { |
| final ProcessRecord processRecord = launchedActivity != null |
| ? mSupervisor.mService.mProcessNames.get(launchedActivity.processName, |
| launchedActivity.appInfo.uid) |
| : null; |
| final boolean processRunning = processRecord != null; |
| |
| // We consider this a "process switch" if the process of the activity that gets launched |
| // didn't have an activity that was in started state. In this case, we assume that lot |
| // of caches might be purged so the time until it produces the first frame is very |
| // interesting. |
| final boolean processSwitch = processRecord == null |
| || !hasStartedActivity(processRecord, launchedActivity); |
| |
| notifyActivityLaunched(resultCode, launchedActivity, processRunning, processSwitch); |
| } |
| |
| private boolean hasStartedActivity(ProcessRecord record, ActivityRecord launchedActivity) { |
| final ArrayList<ActivityRecord> activities = record.activities; |
| for (int i = activities.size() - 1; i >= 0; i--) { |
| final ActivityRecord activity = activities.get(i); |
| if (launchedActivity == activity) { |
| continue; |
| } |
| if (!activity.stopped) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Notifies the tracker the the activity is actually launching. |
| * |
| * @param resultCode one of the ActivityManager.START_* flags, indicating the result of the |
| * launch |
| * @param launchedActivity the activity being launched |
| * @param processRunning whether the process that will contains the activity is already running |
| * @param processSwitch whether the process that will contain the activity didn't have any |
| * activity that was stopped, i.e. the started activity is "switching" |
| * processes |
| */ |
| private void notifyActivityLaunched(int resultCode, ActivityRecord launchedActivity, |
| boolean processRunning, boolean processSwitch) { |
| |
| // If we are already in an existing transition, only update the activity name, but not the |
| // other attributes. |
| final int stackId = launchedActivity != null && launchedActivity.getStack() != null |
| ? launchedActivity.getStack().mStackId |
| : INVALID_STACK_ID; |
| final StackTransitionInfo info = mStackTransitionInfo.get(stackId); |
| if (launchedActivity != null && info != null) { |
| info.launchedActivity = launchedActivity; |
| return; |
| } |
| |
| final boolean otherStacksLaunching = mStackTransitionInfo.size() > 0 && info == null; |
| if ((resultCode < 0 || launchedActivity == null || !processSwitch |
| || stackId == INVALID_STACK_ID) && !otherStacksLaunching) { |
| |
| // Failed to launch or it was not a process switch, so we don't care about the timing. |
| reset(true /* abort */); |
| return; |
| } else if (otherStacksLaunching) { |
| // Don't log this stack but continue with the other stacks. |
| return; |
| } |
| |
| final StackTransitionInfo newInfo = new StackTransitionInfo(); |
| newInfo.launchedActivity = launchedActivity; |
| newInfo.currentTransitionProcessRunning = processRunning; |
| newInfo.startResult = resultCode; |
| mStackTransitionInfo.append(stackId, newInfo); |
| mCurrentTransitionDeviceUptime = (int) (SystemClock.uptimeMillis() / 1000); |
| } |
| |
| /** |
| * Notifies the tracker that all windows of the app have been drawn. |
| */ |
| void notifyWindowsDrawn(int stackId) { |
| final StackTransitionInfo info = mStackTransitionInfo.get(stackId); |
| if (info == null || info.loggedWindowsDrawn) { |
| return; |
| } |
| info.windowsDrawnDelayMs = calculateCurrentDelay(); |
| info.loggedWindowsDrawn = true; |
| if (allStacksWindowsDrawn() && mLoggedTransitionStarting) { |
| reset(false /* abort */); |
| } |
| } |
| |
| /** |
| * Notifies the tracker that the starting window was drawn. |
| */ |
| void notifyStartingWindowDrawn(int stackId) { |
| final StackTransitionInfo info = mStackTransitionInfo.get(stackId); |
| if (info == null || info.loggedStartingWindowDrawn) { |
| return; |
| } |
| info.loggedStartingWindowDrawn = true; |
| info.startingWindowDelayMs = calculateCurrentDelay(); |
| } |
| |
| /** |
| * Notifies the tracker that the app transition is starting. |
| * |
| * @param stackIdReasons A map from stack id to a reason integer, which must be on of |
| * ActivityManagerInternal.APP_TRANSITION_* reasons. |
| */ |
| void notifyTransitionStarting(SparseIntArray stackIdReasons) { |
| if (!isAnyTransitionActive() || mLoggedTransitionStarting) { |
| return; |
| } |
| mCurrentTransitionDelayMs = calculateCurrentDelay(); |
| mLoggedTransitionStarting = true; |
| for (int index = stackIdReasons.size() - 1; index >= 0; index--) { |
| final int stackId = stackIdReasons.keyAt(index); |
| final StackTransitionInfo info = mStackTransitionInfo.get(stackId); |
| if (info == null) { |
| continue; |
| } |
| info.reason = stackIdReasons.valueAt(index); |
| } |
| if (allStacksWindowsDrawn()) { |
| reset(false /* abort */); |
| } |
| } |
| |
| private boolean allStacksWindowsDrawn() { |
| for (int index = mStackTransitionInfo.size() - 1; index >= 0; index--) { |
| if (!mStackTransitionInfo.valueAt(index).loggedWindowsDrawn) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| private boolean isAnyTransitionActive() { |
| return mCurrentTransitionStartTime != INVALID_START_TIME |
| && mStackTransitionInfo.size() > 0; |
| } |
| |
| private void reset(boolean abort) { |
| if (!abort && isAnyTransitionActive()) { |
| logAppTransitionMultiEvents(); |
| } |
| mCurrentTransitionStartTime = INVALID_START_TIME; |
| mCurrentTransitionDelayMs = -1; |
| mLoggedTransitionStarting = false; |
| mStackTransitionInfo.clear(); |
| } |
| |
| private int calculateCurrentDelay() { |
| |
| // Shouldn't take more than 25 days to launch an app, so int is fine here. |
| return (int) (System.currentTimeMillis() - mCurrentTransitionStartTime); |
| } |
| |
| private void logAppTransitionMultiEvents() { |
| for (int index = mStackTransitionInfo.size() - 1; index >= 0; index--) { |
| final StackTransitionInfo info = mStackTransitionInfo.valueAt(index); |
| final int type = getTransitionType(info); |
| if (type == -1) { |
| return; |
| } |
| final LogMaker builder = new LogMaker(APP_TRANSITION); |
| builder.setPackageName(info.launchedActivity.packageName); |
| builder.addTaggedData(APP_TRANSITION_ACTIVITY_NAME, info.launchedActivity.info.name); |
| builder.setType(type); |
| builder.addTaggedData(APP_TRANSITION_DEVICE_UPTIME_SECONDS, |
| mCurrentTransitionDeviceUptime); |
| builder.addTaggedData(APP_TRANSITION_DELAY_MS, mCurrentTransitionDelayMs); |
| builder.setSubtype(info.reason); |
| if (info.startingWindowDelayMs != -1) { |
| builder.addTaggedData(APP_TRANSITION_STARTING_WINDOW_DELAY_MS, |
| info.startingWindowDelayMs); |
| } |
| builder.addTaggedData(APP_TRANSITION_WINDOWS_DRAWN_DELAY_MS, info.windowsDrawnDelayMs); |
| mMetricsLogger.write(builder); |
| } |
| } |
| |
| private int getTransitionType(StackTransitionInfo info) { |
| if (info.currentTransitionProcessRunning) { |
| if (info.startResult == START_SUCCESS) { |
| return TYPE_TRANSITION_WARM_LAUNCH; |
| } else if (info.startResult == START_TASK_TO_FRONT) { |
| return TYPE_TRANSITION_HOT_LAUNCH; |
| } |
| } else if (info.startResult == START_SUCCESS) { |
| return TYPE_TRANSITION_COLD_LAUNCH; |
| } |
| return -1; |
| } |
| } |
