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Performance testing of mobile apps


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This talk was presented at VodQA Gurgaon 3rd edition (11 July 2013) …

This talk was presented at VodQA Gurgaon 3rd edition (11 July 2013)

Talk Abstract:
In midst of testing functional aspect of your mobile apps, performance testing is often ignored or takes a back seat. With the strict quality checks on app stores and other platforms, it becomes all the more essentials for your app to meet performance criteria. We would be focusing on understanding these criteria in detail, their impact and ways to tackle them.


Rupesh Dubey: Rupesh has 5+ years of experience in Test Automation and Manual testing and have been with ThoughtWorks for more than 3 years. He has worked in various domains including HealthCare and Business Consulting.

Priyank Dhillon: He has around 8 years of experience as QA. He has worked on domains such as Telecom, Video and E-commerce and has been involved in different aspects of testing such as Security, White box, Performance. He has worked in software automation testing using wide range of automation tools, doing manual testing and in requirement analysis.

Published in: Technology, Design
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  • 1. Mobile  Performance  Tes1ng                                                        @RupeshDubey                                                          @PriyankDhillon  
  • 2. What  to  expect?   •  Why  mobile  performance  is  important?   •  Different  types  of  mobile  apps.   •  Performance  Challenges   •  Tools  and  Technique   •  Web  apps  Profiling  (Latency,page  audits)     •  Na1ve  apps  Profiling  (Memory  leaks)   •  Recommenda1ons  
  • 3. Why  mobile  perf  is  important?   Source:Blaze    
  • 4. Mobile  Users  Expect  equal  speeds   Source:Blaze  
  • 5. Users  abandon  slow  apps  
  • 6. Mobile  Apps   •  Mobile  Browser  apps   –  mDOT-­‐  dedicated  mobile  sites   –  Responsive  web  design     •  Na1ve  Apps     •  Hybrid  Apps  
  • 7. mDOT  Sites   Source:Velocity  
  • 8. Responsive  Web  Apps   Source:BostonGlobe  
  • 9. Mobile  Apps   •  Mobile  Browser  apps   –  Dedicated  mobile  sites  -­‐  mDOT   –  Responsive  web  design     •  Na1ve  Apps     •  Hybrid  Apps  
  • 10. Performance  Challenges     •  Mobile  Browser  apps   –  mDOT-­‐  dedicated  mobile  sites   –  Responsive  web  design     •  Na1ve  Apps     •  Hybrid  Apps  
  • 11. Front-­‐End  Vs  Back-­‐End  performance  
  • 12. Perf  Challenges  while  browsing  on   mobile   •  Radio  Resource  Control   •  HTTP  pipelining   •  Browser  Cache   •  JS  execu1on  1me    
  • 13. Radio  Resource  Controlling  and  RTT  
  • 14. JS  Execu1on  Time  
  • 15. Browser  Cache   Desktop  browser  Cache:  512  MB  
  • 16. Browser  Cache   •  sqlite3  webviewCache.db  'select  expires  from   cache  order  by  expires  desc;'  
  • 17. HTTP  pipelining  
  • 18. How  to  Monitor     •  MobiTest  /  Web  page  test   •  ADB  (  Android  debug  bridge)   •  Remote  debugging  for  mobile  safari   •  Yslow   •  SpriteMe   •  Icy  (iOS  specific)  
  • 19. Demo  
  • 20. Responsive  Web  Design  
  • 21. Takeaways  for  Mobile  apps   •  Minify  your  java  script  and  CSS   •  All  images  have  dimensions  specified   •  Have  an  efficient  caching  strategy   •  Load  JavaScript  at  the  end  of  the  page   •  Lazy  loading     •  Different  sizes  of  image  for  Responsive  web  apps   •  Don’t  download  extra  CSS     •  Serve  low  resolu1on  images  on  smaller  screen  
  • 22. Mobile  Apps   •  Mobile  Browser  apps   –  mDOT-­‐  dedicated  mobile  sites   –  Responsive  web  design     •  Na9ve  Apps     •  Hybrid  Apps  
  • 23. Challenges   •  Memory  leaks   •  CPU  limit     •  Network/Bandwidth   •  Power  consump1ons    
  • 24. Memory  Leaks  
  • 25. ARC  
  • 26. Power  Consump1on  
  • 27. Power  Consump1on(Contd)  
  • 28. Network/Bandwidth  
  • 29. Takeaways  for  na1ve  apps   •  Release  or  free  any  allocated  memory  as  soon  as   you  are  done  using  it.   •  Avoid  compu1ng  anything  un1l  you  are  sure  you   actually  need  it.   •  Avoid  spinlocks,  polling,  and  other  CPU-­‐hogging   techniques.   •  When  prac1cal,  perform  network  requests  in   batches  rather  than  one  at  a  1me.   •  Consider  memory-­‐mapping  large  files  instead  of   reading  them  into  RAM.  Doing  so  helps  the   system  manage  memory  more  efficiently.  
  • 30. Few  Pointers  for  iOS  App  submission   iOS  Guidelines:   •  App  size  should  not  be  more  than  50  MB  for   non-­‐gaming  app.   •  Any  memory  leak  and  your  app  is  rejected   •  Device  bagery  constraints   •  Excessive  hea1ng    
  • 31. Ques1ons?