Learn why it's crucial to optimize ASP.NET application performance and how to use various technics to reach 100 grade both in YSlow and Page Slow tools. Technics to be described: - tools: YSlow, Page Slow, Fiddler - javascript and css minification including related tools - image optimization and sprites including related tools - tuning IIS for performance - separating static content and using CDNs - ASP.NET server side profiling with MVC Profiler - client side profiling with Web Beacons and HTML5 Navigation Timing

2. Optimizing ASP.NET application
performance: tough but
necessary
Sergejus Barinovas
@sergejusb | sergejus.barinovas@gmail.com

4. Why web performance is
important?

5. Source: Performance Related Changes and their User Impact by Eric Schurman and Jake

6. Performance is a feature and it
costs

7. Mobile feedback app
Agile Tour Vilnius 2011

8. Client side optimization
Tough, but here are several hints for you…

9. Firebug

10. Yahoo! best practices for speeding up web site
Google web performance best practices
YSlow
Page Speed

11. Fiddler

14. Lets optimize mobile feedback
app!
Demo: client side optimization

15. SquishIt
Image Optimizer
Sprite and Image Optimization

16. YUICompressor Smush.it
AjaxMin PunyPNG
Closure compiler YUICompressor
YUICompressor AjaxMin
AjaxMin CSSTidy
Packer Minify
JSMin CSSCompressor

18. Server side optimization
Even tougher and in most cases “it depends”…

20. Microsoft Log Parser
Mini Profiler
HTML5 Navigation Timing

21. Demo
Learning page usage and load times

22. Apache Bench

25. Now go and optimize you
ASP.NET application
performance!

26. Thank you! Questions?
@sergejusb | sergejus.barinovas@gmail.com