1. Performance Optimizing of Android Application Yu KANG 1

2. Motivation 2

3. Challenge Testing & Debugging Rapid release of application Focus more on functional test Fragmentation of Android phones Diagnosing & Recovering The testing cannot cover all Problems may depend on the runtime environment 3

4. Our Work - An Overview Developer side User side App collection Pre-Testing analysis Testing Post-Testing analysis Run-time Profiling Run-time Recovering crawler Reverse Engineering Static Analysis Repack Profiling Workload Generator Hooked DVM FPS meter assisted testing Testing logs Mining logs Recovering 4

5. Current Progress The overall system framework design is done For components Most components (e.g., crawler) – Almost finished Some components (e.g., system profiling) – framework is done but concrete modules need to be added One year study, about 30,000 lines of commented codes till now (including JAVA, C++, Python) 5