Broadening Our Perspective On Web Performance

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The state of Web performance analysis, testing and monitoring today relies on the industry practice of clean-room, synthetic measurements from high-speed backbone or DSL-speed end-points in locations …

The state of Web performance analysis, testing and monitoring today relies on the industry practice of clean-room, synthetic measurements from high-speed backbone or DSL-speed end-points in locations all over the world. Next generation Operations teams are broadening their perspective on web performance monitoring – by expanding their measurement technologies from the network to the browser. Learn how you can use the open standard Web Timing API to frame your performance timings in the context of measuring the user experience. Reshape how Operations teams analyze and communicate the performance metrics of today’s web applications and sites, with a strong operational focus on performance timings, baselines, and actionable alerts.

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  • Let’s take a look at the state of Web performance analysisand monitoring today. These are best practices that Operations teams have relied on for almost 2 decades.
  • Let’s take a look at the state of Web performance analysisand monitoring today. These are best practices that Operations teams have relied on for almost 2 decades.
  • Let’s take a look at the state of Web performance analysisand monitoring today. These are best practices that Operations teams have relied on for almost 2 decades.
  • The industry practice is to monitor and analyze measurement data generated using a “clean-room” approach.A clean room consists of a geographically distributed lab of computers (or mobile devices) connected to live networks. These high-speed backbone or DSL-speed end-points are in locations all over the world. They also use powerful, multi-threaded computers.These are perfect in a clean-room environment eliminating all “dirty” variables (such as resources and memory on the computer)
  • Let’s take a look at the state of Web performance analysisand monitoring today. These are best practices that Operations teams have relied on for almost 2 decades.
  • Let’s take a look at the state of Web performance analysisand monitoring today. These are best practices that Operations teams have relied on for almost 2 decades.
  • Next generation Operations teams are broadening their perspective on web performance monitoring – by expanding their measurement technologies from the network to the browser. Learn how you can use the open standard Web Timing API to frame your performance timings in the context of measuring the user experience. Reshape how Operations team analyze and communicate the performance metrics of today’s web applications and sites, with a strong operational focus on performance timings, baselines, and actionable alerts.
  • Next generation Operations teams are broadening their perspective on web performance monitoring – by expanding their measurement technologies from the network to the browser. Learn how you can use the open standard Web Timing API to frame your performance timings in the context of measuring the user experience. Reshape how Operations team analyze and communicate the performance metrics of today’s web applications and sites, with a strong operational focus on performance timings, baselines, and actionable alerts.
  • Next generation Operations teams are broadening their perspective on web performance monitoring – by expanding their measurement technologies from the network to the browser. Learn how you can use the open standard Web Timing API to frame your performance timings in the context of measuring the user experience. Reshape how Operations team analyze and communicate the performance metrics of today’s web applications and sites, with a strong operational focus on performance timings, baselines, and actionable alerts.
  • When does a user actually see something other than a blank browser window?
  • So ensuring a great user experience requires consistent, accurate measurement of the moments that matter most to customers. We believe these are four critical milestones: [read each milestone]These are the questions that Keynote Transaction Perspective, using IE 9, now answers. Time to First Paint tells you the moment that on-screen rendering begins. It is an important first indication that a website is responsive, and which we recommend begins within 500ms.Time to Full Screen tells you when the page has drawn in the browser screen, regardless of the length of the page. This is also know as “above the fold”.Time to Interactive Page corresponds to when the browser finishes processing the JavaScript onload event.Total User Experience Time is the final measure of a page’s speed factoring not only the time it took for data to be downloaded, but also rendered and made interactive. This is the complete, end-to-end speed of the page or transaction.

Transcript

  • 1. Broadening OurPerspective on Web PerformanceFrom Network Latency to User Experience TimingsVik Chaudhary, EVP Products and Corpdev @vikchaudhary
  • 2. The state of web performance today
  • 3. …is that Operations teams rely on clean-room measurements
  • 4. Using geographically distributed measurement agents
  • 5. …managed by commercial measurement companies and free services
  • 6. …using reliable network connections on the Internet backbone and at last mile locations
  • 7. …to run synthetic (“active”) tests on web pages from multiple locations
  • 8. …and measure response time and availability for a page or transaction
  • 9. It’s time to step up our game
  • 10. Next generation Operations teams…
  • 11. …are broadening their perspective on web performance monitoring
  • 12. …and measuring the user experience, not just the network latency2,500 msec 3 secs
  • 13. The questions being asked today…
  • 14. …are not: “What is the network latency of all resources on a page?”
  • 15. Instead “When does the user actually see something other than a blank browser?”
  • 16. August 16, 2012“How long until the page loads above the fold on a user’s browser?”
  • 17. “How long before users can click a link, scroll the bar, or swipe the page?”
  • 18. “What is the elapsed time for a page, including browser execution time?”
  • 19. User Experience Metrics Time Time Time to Userto First to Full Interactive Experience Paint Screen Page Time
  • 20. How do websites across industries rate?
  • 21. Time to Time to User Experience First Paint Interactive Page Time RetailSocial Networks News 0 1s 2s 3s 4s 5s
  • 22. Time to Time to User Experience First Paint Interactive Page Time Travel Gaming Social RetailEntertainment 0 1s 2s 3s 4s 5s
  • 23. Time to First Paint is over 1s on average
  • 24. Wait a Second
  • 25. No, that’s too long
  • 26. That’s 4 blinks of your eye
  • 27. How do you measureuser experience for your website?
  • 28. Your browser is talking to you
  • 29. …in a language called Web Timings
  • 30. Web (Navigation) Timing Attributes
  • 31. You could program it on your website…function onLoad() { var now = new Date().getTime(); var perceived_latency = now - performance.timing.navigationStart;}
  • 32. Call Four Different APIs…Navigation PerformanceTiming API Timeline API Resource User Timing API Timing API
  • 33. …handle storage, compliance, and reporting
  • 34. Or, let Google give you real user performance statistics
  • 35. Keynote delivers the industry’s first clean-room user experience monitoring data
  • 36. Combining Clean Room andReal User Measurements
  • 37. Web Performance. Reimagined.