Convert looper traces to traceview traces (648bee18) · Commits · e / os / android_frameworks_base

core/java/android/os/Looper.java

+8 −6

Original line number	Diff line number	Diff line
		@@ -130,19 +130,20 @@ public class Looper {
		if (logging != null) {
		logging.println(">>>>> Dispatching to " + msg.target + " " +
		msg.callback + ": " + msg.what);
		wallStart = System.currentTimeMillis();
		threadStart = SystemClock.currentThreadTimeMillis();
		wallStart = SystemClock.currentTimeMicro();
		threadStart = SystemClock.currentThreadTimeMicro();
		}

		msg.target.dispatchMessage(msg);

		if (logging != null) {
		long wallTime = System.currentTimeMillis() - wallStart;
		long threadTime = SystemClock.currentThreadTimeMillis() - threadStart;
		long wallTime = SystemClock.currentTimeMicro() - wallStart;
		long threadTime = SystemClock.currentThreadTimeMicro() - threadStart;

		logging.println("<<<<< Finished to " + msg.target + " " + msg.callback);
		if (logging instanceof Profiler) {
		((Profiler) logging).profile(msg, wallStart, wallTime, threadTime);
		((Profiler) logging).profile(msg, wallStart, wallTime,
		threadStart, threadTime);
		}
		}

		@@ -247,6 +248,7 @@ public class Looper {
		* @hide
		*/
		public static interface Profiler {
		void profile(Message message, long wallStart, long wallTime, long threadTime);
		void profile(Message message, long wallStart, long wallTime,
		long threadStart, long threadTime);
		}
		}

core/java/android/os/SystemClock.java

+18 −0

Original line number	Diff line number	Diff line
		@@ -157,4 +157,22 @@ public final class SystemClock {
		* @return elapsed milliseconds in the thread
		*/
		public static native long currentThreadTimeMillis();

		/**
		* Returns microseconds running in the current thread.
		*
		* @return elapsed microseconds in the thread
		*
		* @hide
		*/
		public static native long currentThreadTimeMicro();

		/**
		* Returns current wall time in microseconds.
		*
		* @return elapsed microseconds in wall time
		*
		* @hide
		*/
		public static native long currentTimeMicro();
		}

core/java/android/view/ViewDebug.java

+42 −8

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import android.os.Environment;
		import android.os.Looper;
		import android.os.Message;
		import android.os.RemoteException;
		import android.os.SystemClock;
		import android.util.DisplayMetrics;
		import android.util.Log;
		import android.util.Printer;
		@@ -53,6 +54,7 @@ import java.util.ArrayList;
		import java.util.HashMap;
		import java.util.LinkedList;
		import java.util.List;
		import java.util.Map;
		import java.util.concurrent.CountDownLatch;
		import java.util.concurrent.TimeUnit;

		@@ -455,11 +457,19 @@ public class ViewDebug {

		private static final String LOG_TAG = "LooperProfiler";

		private final long mTraceWallStart;
		private final long mTraceThreadStart;

		private final ArrayList<Entry> mTraces = new ArrayList<Entry>(512);
		private final File mTraceFile;

		public LooperProfiler(File traceFile) {
		private final HashMap<String, Short> mTraceNames = new HashMap<String, Short>(32);
		private short mTraceId = 0;

		LooperProfiler(File traceFile) {
		mTraceFile = traceFile;
		mTraceWallStart = SystemClock.currentTimeMicro();
		mTraceThreadStart = SystemClock.currentThreadTimeMicro();
		}

		@Override
		@@ -468,17 +478,28 @@ public class ViewDebug {
		}

		@Override
		public void profile(Message message, long wallStart, long wallTime, long threadTime) {
		public void profile(Message message, long wallStart, long wallTime,
		long threadStart, long threadTime) {
		Entry entry = new Entry();
		entry.messageId = message.what;
		entry.name = message.getTarget().getMessageName(message);
		entry.traceId = getTraceId(message);
		entry.wallStart = wallStart;
		entry.wallTime = wallTime;
		entry.threadStart = threadStart;
		entry.threadTime = threadTime;

		mTraces.add(entry);
		}

		private short getTraceId(Message message) {
		String name = message.getTarget().getMessageName(message);
		Short traceId = mTraceNames.get(name);
		if (traceId == null) {
		traceId = mTraceId++;
		mTraceNames.put(name, traceId);
		}
		return traceId;
		}

		void save() {
		// Don't block the UI thread
		new Thread(new Runnable() {
		@@ -502,6 +523,14 @@ public class ViewDebug {

		try {
		out.writeInt(LOOPER_PROFILER_VERSION);
		out.writeLong(mTraceWallStart);
		out.writeLong(mTraceThreadStart);

		out.writeInt(mTraceNames.size());
		for (Map.Entry<String, Short> entry : mTraceNames.entrySet()) {
		saveTraceName(entry.getKey(), entry.getValue(), out);
		}

		out.writeInt(mTraces.size());
		for (Entry entry : mTraces) {
		saveTrace(entry, out);
		@@ -519,19 +548,24 @@ public class ViewDebug {
		}
		}

		private void saveTraceName(String name, short id, DataOutputStream out) throws IOException {
		out.writeShort(id);
		out.writeUTF(name);
		}

		private void saveTrace(Entry entry, DataOutputStream out) throws IOException {
		out.writeInt(entry.messageId);
		out.writeUTF(entry.name);
		out.writeShort(entry.traceId);
		out.writeLong(entry.wallStart);
		out.writeLong(entry.wallTime);
		out.writeLong(entry.threadStart);
		out.writeLong(entry.threadTime);
		}

		static class Entry {
		int messageId;
		String name;
		short traceId;
		long wallStart;
		long wallTime;
		long threadStart;
		long threadTime;
		}
		}

core/jni/android_os_SystemClock.cpp

+36 −0

Original line number	Diff line number	Diff line
		@@ -79,6 +79,38 @@ static jlong android_os_SystemClock_currentThreadTimeMillis(JNIEnv* env,
		#endif
		}

		/*
		* native public static long currentThreadTimeMicro();
		*/
		static jlong android_os_SystemClock_currentThreadTimeMicro(JNIEnv* env,
		jobject clazz)
		{
		#if defined(HAVE_POSIX_CLOCKS)
		struct timespec tm;

		clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tm);

		return tm.tv_sec * 1000000LL + tm.tv_nsec / 1000;
		#else
		struct timeval tv;

		gettimeofday(&tv, NULL);
		return tv.tv_sec * 1000000LL + tv.tv_nsec / 1000;
		#endif
		}

		/*
		* native public static long currentTimeMicro();
		*/
		static jlong android_os_SystemClock_currentTimeMicro(JNIEnv* env,
		jobject clazz)
		{
		struct timeval tv;

		gettimeofday(&tv, NULL);
		return tv.tv_sec * 1000000LL + tv.tv_usec;
		}

		/*
		* JNI registration.
		*/
		@@ -92,6 +124,10 @@ static JNINativeMethod gMethods[] = {
		(void*) android_os_SystemClock_elapsedRealtime },
		{ "currentThreadTimeMillis", "()J",
		(void*) android_os_SystemClock_currentThreadTimeMillis },
		{ "currentThreadTimeMicro", "()J",
		(void*) android_os_SystemClock_currentThreadTimeMicro },
		{ "currentTimeMicro", "()J",
		(void*) android_os_SystemClock_currentTimeMicro },
		};
		int register_android_os_SystemClock(JNIEnv* env)
		{