ddms profiling and traceview

http://developer.android.com/guide/developing/debugging/ddms.html
http://developer.android.com/guide/developing/debugging/debugging-tracing.html

traceview

The table shows both the inclusive and exclusive times (as well as the percentage of the total time). Exclusive time is the time spent in the method. Inclusive time is the time spent in the method plus the time spent in any called functions. We refer to calling methods as "parents" and called methods as "children."