Android Application Optimization: Overview and Tools - Oref Barad, AVG
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This document provides an overview of tools and techniques for optimizing Android applications. It discusses why optimization is important for improving efficiency, user experience and retention. The key things to optimize are resources like CPU, RAM, storage and network usage. Tools are presented for profiling CPU usage like MethodTracer, RAM usage like heap dumps, network usage like TCPDUMP, and battery usage like batterystats. Tips provided include using the CPU smartly, reducing APK size, and removing unused code and features. The overall goal is to create better, lighter applications through measurement, identification of issues, and targeted optimization.
![15
Optimize The Ram usage - tools
• How to measure?
• dumpsys meminfo [package name]
Pros Cons
Very easy to use Outside measure
No Observer effect](https://image.slidesharecdn.com/droidconoptimizeyourappsorenbarad-150618130751-lva1-app6891/85/Android-Application-Optimization-Overview-and-Tools-Oref-Barad-AVG-15-320.jpg)
![18
Optimize The Network usage - tools
• How to measure?
• dumpsys netstats detail
– cat /proc/[pid]/net/dev
Pros Cons
Good info Very simplistic
No Observer effect](https://image.slidesharecdn.com/droidconoptimizeyourappsorenbarad-150618130751-lva1-app6891/85/Android-Application-Optimization-Overview-and-Tools-Oref-Barad-AVG-18-320.jpg)
Android Application Optimization: Overview and Tools - Oref Barad, AVG
- 1. Android Application Optimization – overview and Tools Oren BarAd Mobile Architect AVG
- 2. 2 Who? • Developing for Android since 2008 • The first employee of DroidSecurity – First company to release An antivirus to the Android market (2009) – Later acquired by AVG (2011) • Mobile Architect @AVG • B.Sc Information System Engineering from BGU
- 3. 3 Agenda • Why optimize? • What to optimize? • Tools and tips
- 4. 4 Why Optimize? • We want to be better • Smaller footprint • Better efficiency? • Better user retention? • Improvements!
- 5. 5 What to optimize? • We have limited resources • Value/Cost • User request/comments/help • Analytics! • Internal app metrics – See previous talks
- 6. 6 What needs to be optimized? • Resources • CPU • RAM • Storage – App size/local storage • Network communications • Battery
- 7. 7 What needs to be optimized? cont. • Design • Cure the Feature-itis and remove bloat • Remove unused features • KISS • User eXperience - UX
- 8. 8 Optimize basics - the benchmark • Create a metric • Baseline • Memory/CPU/Battery • Devices • OS matrix • User comments/responses
- 9. 9 Optimize The CPU usage - tools • How to measure? • top –m 5 –d 1 (-t) Pros Cons Very easy to use Measures are cumulative Thread level usage Observer effect
- 10. 10 Optimize The CPU usage - tools • Identify the problem! • MethodTracer • Can be Collected from the Android Device Monitor or from code – Debug.StartMethodTrace()
- 11. 11 Optimize The CPU usage • The methodTracer tool can be very helpful!
- 12. 12 Optimize The CPU usage Pros Cons Best tool Confusing Background Logic Animation Observer effect • MethodTracer
- 13. 13 Optimize The CPU usage • Cross application interference • ContentObserver • System Service • BroadcastReceiver • Repeated events
- 14. 14 Optimize The CPU usage - tips • Use the CPU in a smart way • Avoid work if possible • Postpone • Outside power • Batch it • Use Schedule
- 15. 15 Optimize The Ram usage - tools • How to measure? • dumpsys meminfo [package name] Pros Cons Very easy to use Outside measure No Observer effect
- 16. 16 Optimize The Ram usage - tools • Better details • Heap Dump (hprof) • Use the Android Device monitor, and MAT Pros Cons Very easy to dump Single point in time No Observer effect Hard to analyze
- 17. 17 Optimize The Ram usage - tools • Allocation Tracer • Use the Android Device monitor Pros Cons Identify allocations Confusing Monitoring over time
- 18. 18 Optimize The Network usage - tools • How to measure? • dumpsys netstats detail – cat /proc/[pid]/net/dev Pros Cons Good info Very simplistic No Observer effect
- 19. 19 Optimize The Network usage - tools • Better details • TCPDUMP – Or Fiddler Pros Cons Analyze using standard tool Unable to handle encryption No Observer effect
- 20. 20 Optimize The Network usage - tools • Android Monitor Tool • Use the Android Device monitor, and MAT
- 21. 21 Optimize The Battery usage • How to measure? • dumpsys batterystats – System settings Pros Cons General info Observer effect Old OS issues
- 22. 22 Reduce Apk size • How to measure? • unzip –l • github.com/oba2cat3/parse_apk_size • Reduce size of PNGs • Compress the resources.arsc • Remove unused code - ProGuard
- 23. 23 Summary • Do we need to optimize? • What to optimize? • What tools to use? • Make Better Apps!
- 24. 24 Q&A • Questions? • Contact: Oren.barad@avg.com • We are hiring Android Developers!