Browserscope oscon 2011

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This document discusses Browserscope, an open-source project that crowdsources browser testing to profile browser capabilities and performance. It collects data from over 10,000 browsers to track functionality over time, uncover regressions, and provide a historical resource for web developers. Tests are run on real users' browsers to aggregate unbiased results without dedicated testing resources.

Use 10,000 Browsers
- or -
How to Crowdsource, Archive and Share User
Agent Data in the Open with Browserscope

OSCON 2011

about:me
Lindsey Simon
Google Front-End Developer
elsigh@gmail.com / @elsighmon

● AdWords
● App Engine
● i18n
● Closure library
● Search
● Google Translate
● Google+

http://en.wikipedia.org/wiki/Usage_share_of_web_browsers

understanding
capabilities and performance

Browserscope

Open-source, community-driven project for profiling browsers.

Explicit Goals:
● foster innovation by tracking functionality
● push browser innovation, uncover regressions
● historical resource for web developers

Born September 13th, 2009

crowdsourcing

● no dedicated test resources

crowdsourcing

● no dedicated test resources
● project runs in perpetuity

crowdsourcing

● no dedicated test resources
● project runs in perpetuity
● real world test conditions

crowdsourcing

● no dedicated test resources
● project runs in perpetuity
● real world test conditions
● aggregating results reduces bias

crowdsourcing

● no dedicated test resources
● project runs in perpetuity
● real world test conditions
● aggregating results reduces bias
● new browsers show up immediately

key characteristics

● more matrix than benchmark

key characteristics

● more matrix than benchmark
● reproducible tests and results (no video or control setup)

key characteristics

● more matrix than benchmark
● reproducible tests and results (no video or control setup)
● gather & display historical data, trends

anatomy of a browserscope test

1. create a web page that populates a JS object.
2. login and "Add a test" on browserscope.
3. add browserscope JS snippet(s) to your test page.
4. get lots of users to hit your page

hosted test categories
Network Performance
● Steve Souders' original UA Profiler tests
● connections, caching, parallel downloads, etc...

Rich Text Edit Mode
● Annie Sullivan, Roland Steiner, Ehsan Akhgari
● i.e. cut and paste in browsers, w/ bold, italic, formatting

Acid3
● Ian Hickson's tests, added by Jacob Moon
● javascript, css, rendering

Selectors API Test Suite
● John Resig's tests, added by Lindsey Simon
● querySelectorAll DOM retrieval syntax

hosted test categories
Security
● Collin Jackson(CMU) & Adam Barth(Berkeley) & team
● JSON, x-origin, XSS, sandbox, etc..

JSKB
● Mike Samuel (Google Caja)
● JavaScript compliance -> compilation
● similar to Joe Hewitt's new hascan

Network Results Timeline

browserscope.org/timeline?category=summary

Acid3 Results Timeline

browserscope.org/timeline?category=acid3

Summary Results Timeline

browserscope.org/timeline?category=summary

HTML5 Ready - current desktop

modernizr2 results - browserscope.org/evolution?v=top-d

HTML5 Ready - edge desktop

modernizr2 results - browserscope.org/evolution?v=top-d-e

HTML5 Ready - mobile

modernizr2 results - browserscope.org/evolution?v=top-m

under the hood

● App Engine
● runtime median engine driven by task queues
● memcache, lots of it
● closure-library/compiler
● gdata python lib + gviz table component
● cross domain iframe posting
● jQuery

data points

● 2M tests run
● 100M discrete data points
● 1308 browsers (600K discrete user agent strings)
● 54K User tests
● 21GB of data
● ~ 10QPS
● High traffic integrations:
○ jsperf.com/popular
○ www.modernizr.com

User Test demo: browserscope-test.appspot.com/
Google UI demo: groupmenuselect.appspot.com/results

roadmap

● code linting based on DOM property support
● mobile / OS distinction
● more data viz

links:
browserscope.org
code.google.com/p/browserscope
groups.google.com/group/browserscope

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This presentation, delivered at the Postgres Bangalore (PGBLR) Meetup-2 on June 29th, 2024, dives deep into connection pooling for PostgreSQL databases. Aakash M, a PostgreSQL Tech Lead at Mydbops, explores the challenges of managing numerous connections and explains how connection pooling optimizes performance and resource utilization. Key Takeaways: * Understand why connection pooling is essential for high-traffic applications * Explore various connection poolers available for PostgreSQL, including pgbouncer * Learn the configuration options and functionalities of pgbouncer * Discover best practices for monitoring and troubleshooting connection pooling setups * Gain insights into real-world use cases and considerations for production environments This presentation is ideal for: * Database administrators (DBAs) * Developers working with PostgreSQL * DevOps engineers * Anyone interested in optimizing PostgreSQL performance Contact info@mydbops.com for PostgreSQL Managed, Consulting and Remote DBA Services

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Scaling Connections in PostgreSQL Postgres Bangalore(PGBLR) Meetup-2 - Mydbops

Browserscope oscon 2011

1. Use 10,000 Browsers - or - How to Crowdsource, Archive and Share User Agent Data in the Open with Browserscope OSCON 2011

2. about:me Lindsey Simon Google Front-End Developer elsigh@gmail.com / @elsighmon ● AdWords ● App Engine ● i18n ● Closure library ● Search ● Google Translate ● Google+

4. Your Development Test Environment

5. Your Mobile Test Environment

6. http://en.wikipedia.org/wiki/Usage_share_of_web_browsers

7. understanding capabilities and performance

8. Multi-Prong Attack Strategy

9. Browserscope Open-source, community-driven project for profiling browsers. Explicit Goals: ● foster innovation by tracking functionality ● push browser innovation, uncover regressions ● historical resource for web developers Born September 13th, 2009

10. crowdsourcing the results

11. crowdsourcing ● no dedicated test resources

12. crowdsourcing ● no dedicated test resources ● project runs in perpetuity

13. crowdsourcing ● no dedicated test resources ● project runs in perpetuity ● real world test conditions

14. crowdsourcing ● no dedicated test resources ● project runs in perpetuity ● real world test conditions ● aggregating results reduces bias

15. crowdsourcing ● no dedicated test resources ● project runs in perpetuity ● real world test conditions ● aggregating results reduces bias ● new browsers show up immediately

16. key characteristics ● more matrix than benchmark

17. key characteristics ● more matrix than benchmark ● reproducible tests and results (no video or control setup)

18. key characteristics ● more matrix than benchmark ● reproducible tests and results (no video or control setup) ● gather & display historical data, trends

19. anatomy of a browserscope test 1. create a web page that populates a JS object. 2. login and "Add a test" on browserscope. 3. add browserscope JS snippet(s) to your test page. 4. get lots of users to hit your page

20. DEMO! http://goo.gl/LGRqA

21. Hosted Tests

22. hosted test categories Network Performance ● Steve Souders' original UA Profiler tests ● connections, caching, parallel downloads, etc... Rich Text Edit Mode ● Annie Sullivan, Roland Steiner, Ehsan Akhgari ● i.e. cut and paste in browsers, w/ bold, italic, formatting Acid3 ● Ian Hickson's tests, added by Jacob Moon ● javascript, css, rendering Selectors API Test Suite ● John Resig's tests, added by Lindsey Simon ● querySelectorAll DOM retrieval syntax

23. hosted test categories Security ● Collin Jackson(CMU) & Adam Barth(Berkeley) & team ● JSON, x-origin, XSS, sandbox, etc.. JSKB ● Mike Samuel (Google Caja) ● JavaScript compliance -> compilation ● similar to Joe Hewitt's new hascan

24. Network Results Timeline browserscope.org/timeline?category=summary

25. Acid3 Results Timeline browserscope.org/timeline?category=acid3

26. Summary Results Timeline browserscope.org/timeline?category=summary

27. User Tests

28. Modernizr 2.0.4 Results Timeline

29. HTML5 Ready - current desktop modernizr2 results - browserscope.org/evolution?v=top-d

30. HTML5 Ready - edge desktop modernizr2 results - browserscope.org/evolution?v=top-d-e

31. HTML5 Ready - mobile modernizr2 results - browserscope.org/evolution?v=top-m

32. under the hood ● App Engine ● runtime median engine driven by task queues ● memcache, lots of it ● closure-library/compiler ● gdata python lib + gviz table component ● cross domain iframe posting ● jQuery

33. data points ● 2M tests run ● 100M discrete data points ● 1308 browsers (600K discrete user agent strings) ● 54K User tests ● 21GB of data ● ~ 10QPS ● High traffic integrations: ○ jsperf.com/popular ○ www.modernizr.com User Test demo: browserscope-test.appspot.com/ Google UI demo: groupmenuselect.appspot.com/results

34. roadmap ● code linting based on DOM property support ● mobile / OS distinction ● more data viz links: browserscope.org code.google.com/p/browserscope groups.google.com/group/browserscope

35. Thank You Free Software!

Browserscope oscon 2011

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