What it means to deliver exceptional performance
•Download as PPTX, PDF•
2 likes•1,434 views
This document discusses what it means to deliver exceptional website performance. It notes that websites should load within 2-4 seconds for a good user experience. However, many factors outside a developer's control can impact load times, including network speeds and server-side processing. To achieve exceptional performance, the document recommends benchmarking current site performance, optimizing for all users, and continuously monitoring real user experience over time.
Report
Share
What it means to deliver exceptional performance
- 1. What it means to deliver exceptional performance Alois Reitbauer, Technology Strategist, dynaTrace
- 2. What is exceptional performance?
- 3. It depends …
- 4. Websites should load in 2 to 4 seconds
- 5. Interactions should take less than a second
- 6. What users say …
- 7. People are not clocks (i.e. their time perception is not that precise)
- 8. The 20 percent rule 1.6 s 2s 2.4 s
- 9. Exceptional performance starts at 1.6 seconds
- 10. You might think this is a lot of time
- 11. It is not under your control Your control ends here
- 12. Web Application Delivery Chain Content Internet Server Browser Processing 3rd Party
- 13. How much time do you really have?
- 14. Getting web content Content Icon: http://www.gettyicons.com/free-icon/112/hardware-icon-set/free-server-icon-png/
- 15. Adding two round trips we are down to 1.3 seconds
- 16. We haven’t downloaded anything yet
- 17. 200 kB at 1.5 Mb/s take about a second
- 18. After content download we have 0.3 seconds
- 19. Client side processing ~ 0.3 seconds
- 20. … we now have 0.0 seconds left …
- 21. … and have not considered server-side processing
- 22. Is it impossible to be exceptionally fast?
- 23. No, but it is really hard
- 24. How do we get there?
- 25. Do your homework #webperf
- 26. … many people don’t
- 27. How good are we?
- 28. Then we need to look at actual timings
- 29. What to look at?
- 30. Now, we need to benchmark
- 31. So now we are done?
- 32. We need to optimize our site for all users
- 34. And then …
- 35. … we have to do this continuously
- 36. Alois Reitbauer @AloisReitbauer alois.reitbauer@dynatrace.com http://blog.dynatrace.com