1. Knowing Your Limits Jason Fish Informatics @jasondfish #bweb11

2. Who should be here? Designer Developer Administer a website Own a sites content Market a site Manage someone who does the above Use the internet @jasondfish

3. What am I going to tell you? Mixable What problem we faced How we found a solution What we fixed Give you in tools to do the same @jasondfish

4. www.purdue.edu/mixable

5. What technology did we use? ASP.NET MVC 2.0 SQL Server 2008 R2 Memcached jQuery API – Facebook – Twitter – Dropbox @jasondfish

6. What problem did we face? @jasondfish ? External content Images Videos Profile pictures Web service calls Get student courses Get faculty courses Get Facebook data

7. What could we do? What would you do? Cache queries Just-in-time loading of data Push processing to the user @jasondfish

8. Was that enough, or right? No baseline No idea on content Did we focus on the wrong things? @jasondfish

9. Again, what could we do? Load Test – process of putting demand on a system or device and measuring its response. – en.wikipedia.org/wiki/Load_test en.wikipedia.org/wiki/Load_test @jasondfish

10. How do we do that here? Load Runner – Licensing – Huge learning curve – Intensely time consuming Why do we have it then? – Blackboard – Banner @jasondfish

11. Well now what? LoadStorm – General Electric – Wall Street Journal – Nokia – Woot Free for 25 users Very little learning curve No per user license fee @jasondfish

12. So how does it work? @jasondfish

13. Build the Test – The Setup @jasondfish

14. Build the Test – The Scenario @jasondfish

15. Run the test within 5 minutes @jasondfish

16. Yay charts! @jasondfish

17. Yay numbers! @jasondfish Key Points Average Response Time Errors Peak Requests Per Second

18. Final Charts @jasondfish

19. What’s going on here? @jasondfish

20. There’s More! @jasondfish

21. Mixable Results @jasondfish

22. Mixable Charts @jasondfish

23. Mixable Charts @jasondfish

24. Mixable Charts @jasondfish

25. Why such a big change? Implement Caching – Queries – Images Utilize CDN’s – jQuery Image thumbnailing Code Optimization – C# – Queries @jasondfish

26. What else do I need to know? Servers need to be validated Admins should be notified – Web Server – Database Server Only Run on Dev/QA @jasondfish

27. So, why are you here? Give you access to LoadStorm for FREE Email me at jfish@purdue.edu @jasondfish

28. Session surveys http://www.itap.purdue.edu/boilerweb/survey