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-rw-r--r--core/java/android/os/Looper.java14
-rw-r--r--core/java/android/os/SystemClock.java18
-rw-r--r--core/java/android/view/ViewDebug.java50
-rw-r--r--core/jni/android_os_SystemClock.cpp36
4 files changed, 104 insertions, 14 deletions
diff --git a/core/java/android/os/Looper.java b/core/java/android/os/Looper.java
index 720e802b..c61f28a 100644
--- a/core/java/android/os/Looper.java
+++ b/core/java/android/os/Looper.java
@@ -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);
}
}
diff --git a/core/java/android/os/SystemClock.java b/core/java/android/os/SystemClock.java
index 2dd6749..7291739 100644
--- a/core/java/android/os/SystemClock.java
+++ b/core/java/android/os/SystemClock.java
@@ -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();
}
diff --git a/core/java/android/view/ViewDebug.java b/core/java/android/view/ViewDebug.java
index b85159b..3798c9d 100644
--- a/core/java/android/view/ViewDebug.java
+++ b/core/java/android/view/ViewDebug.java
@@ -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;
}
}
diff --git a/core/jni/android_os_SystemClock.cpp b/core/jni/android_os_SystemClock.cpp
index ffd0c1e..66d58cd 100644
--- a/core/jni/android_os_SystemClock.cpp
+++ b/core/jni/android_os_SystemClock.cpp
@@ -80,6 +80,38 @@ static jlong android_os_SystemClock_currentThreadTimeMillis(JNIEnv* env,
}
/*
+ * 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.
*/
static JNINativeMethod gMethods[] = {
@@ -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)
{
generated by cgit v1.1 at 2025-03-23 13:45:10 +0000