Android java space profiling tool - traceview

Android provides a good java space profiling tool: traceview. Traceview can be found in the same folder as adb in Android SDK package. Usage is quite simple and straightforward:

1. import android.os.Debug;
2. Debug.startMethodTracing("tag-name");
   
3. Debug.stopMethodTracing();
4. Run the Java application
5. Fetch out the profiling output file on SD card (SD card is needed) root folder: tag-name.trace
6. traceview tag-name.trace to open the traceview window

Insert items 1, 2, 3 into your java source code where you want to do profiling.
For more information about traceview window, refer to http://developer.android.com/guide/developing/tools/traceview.html