Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Northeastern Lunch and Learn

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
Avatar for Jonathan Klein Jonathan Klein
June 18, 2014
Technology
0
280

Northeastern Lunch and Learn

A Web Performance 101 talk given at Northeastern in June 2014.

Avatar for Jonathan Klein

Jonathan Klein

June 18, 2014
Tweet

More Decks by Jonathan Klein

See All by Jonathan Klein
Cognitive Biases in Engineering Organizations - Craft Conf
Avatar for Jonathan Klein jklein
15
470
Demystifying SPDY and HTTP/2
Avatar for Jonathan Klein jklein
1
650
Demystifying SPDY and HTTP/2
Avatar for Jonathan Klein jklein
2
1.1k
Cognitive Biases in Engineering Organizations
Avatar for Jonathan Klein jklein
4
2k
Composer: From Beginner to Expert
Avatar for Jonathan Klein jklein
1
1.1k
Upgrading the Web: Boston Web Performance Meetup
Avatar for Jonathan Klein jklein
1
320
Upgrading the Web: Driving Support For New Standards
Avatar for Jonathan Klein jklein
1
840
Profiling PHP With XHProf
Avatar for Jonathan Klein jklein
1
1k
HubSpot Tech Talk - DIY Synthetic
Avatar for Jonathan Klein jklein
0
360

Other Decks in Technology

See All in Technology
Sansan Engineering Unit 紹介資料
Avatar for Sansan, Inc. sansan33
PRO
1
3.8k
小さく始めるBCP ― 多プロダクト環境で始める最初の一歩
Avatar for kekke-n kekke_n
1
410
マーケットプレイス版Oracle WebCenter Content For OCI
Avatar for oracle4engineer oracle4engineer
PRO
5
1.6k
Codex 5.3 と Opus 4.6 にコーポレートサイトを作らせてみた / Codex 5.3 vs Opus 4.6
Avatar for ama-ch ama_ch
0
150
AWS Network Firewall Proxyを触ってみた
Avatar for nagisa_53 nagisa53
1
230
CDK対応したAWS DevOps Agentを試そう_20260201
Avatar for モブエンジニア（Masaki Okuda） masakiokuda
1
270
Red Hat OpenStack Services on OpenShift
Avatar for Tatsuya Amemiya tamemiya
0
100
SREのプラクティスを用いた3領域同時 マネジメントへの挑戦 〜SRE・情シス・セキュリティを統合した チーム運営術〜
Avatar for coconala_engineer coconala_engineer
2
640
量子クラウドサービスの裏側　〜Deep Dive into OQTOPUS〜
Avatar for OQTOPUS oqtopus
0
110
SREチームをどう作り、どう育てるか ― Findy横断SREのマネジメント
Avatar for adachi.ryo rvirus0817
0
240
日本の85%が使う公共SaaSは、どう育ったのか
Avatar for たけだ taketakekaho
1
150
Amazon S3 Vectorsを使って資格勉強用AIエージェントを構築してみた
Avatar for usanchuu usanchuu
3
450

Featured

See All Featured
Un-Boring Meetings
Avatar for Sebastian Deterding codingconduct
0
200
A designer walks into a library…
Avatar for Paul Jervis Heath pauljervisheath
210
24k
Practical Tips for Bootstrapping Information Extraction Pipelines
Avatar for Matthew Honnibal honnibal
25
1.7k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
55
12k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
57
14k
The AI Revolution Will Not Be Monopolized: How open-source beats economies of scale, even for LLMs
Avatar for Ines Montani inesmontani
PRO
3
3k
The Invisible Side of Design
Avatar for Vitaly Friedman smashingmag
302
51k
The B2B funnel & how to create a winning content strategy
Avatar for Katarina Dahlin katarinadahlin
PRO
0
270
Agile Actions for Facilitating Distributed Teams - ADO2019
Avatar for Mark Kilby mkilby
0
110
How to make the Groovebox
Avatar for あそなす asonas
2
1.9k
StorybookのUI Testing Handbookを読んだ
Avatar for Shingo Yamazaki zakiyama
31
6.6k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
Avatar for Marc Duiker marcduiker
35
2.4k

Transcript

  1. Northeastern Tech Talk Jonathan Klein 6/17/14 @jonathanklein

  2. Slides, Links http://jkle.in/neu

  3. About Me

  4. About Me • Senior Performance Engineer At Etsy

  5. About Me • Senior Performance Engineer At Etsy • I

    write the Etsy Site Performance Reports

  6. About Me • Senior Performance Engineer At Etsy • I

    write the Etsy Site Performance Reports • Organize Boston Web Perf Meetup Group

  7. The Value of Performance

  8. None

  9. Real World Examples

  10. Real World Examples • Firefox: -2.2 seconds = 15.4% more

    downloads

  11. Real World Examples • Firefox: -2.2 seconds = 15.4% more

    downloads • Shopzilla: -5 seconds = 7-12% increase in revenue

  12. Real World Examples • Firefox: -2.2 seconds = 15.4% more

    downloads • Shopzilla: -5 seconds = 7-12% increase in revenue • Google: +400ms = 0.76% fewer searches

  13. Real World Examples • Firefox: -2.2 seconds = 15.4% more

    downloads • Shopzilla: -5 seconds = 7-12% increase in revenue • Google: +400ms = 0.76% fewer searches • Amazon: +100ms = -1% revenue

  14. Real World Examples • Firefox: -2.2 seconds = 15.4% more

    downloads • Shopzilla: -5 seconds = 7-12% increase in revenue • Google: +400ms = 0.76% fewer searches • Amazon: +100ms = -1% revenue • http://www.phpied.com/the-performance-business-pitch/

  15. What About a University?

  16. What About a University? • More applicants

  17. What About a University? • More applicants • Happier Students/Faculty

  18. What About a University? • More applicants • Happier Students/Faculty

    • Increased endowment contributions

  19. Today’s Focus

  20. Today’s Focus 1. Number of Bytes (Page Weight)

  21. Today’s Focus 1. Number of Bytes (Page Weight) 2. What

    Kind of Bytes

  22. Today’s Focus 1. Number of Bytes (Page Weight) 2. What

    Kind of Bytes 3. How They Are Delivered

  23. 80% of page load time takes place on the client

  24. 1. Page Weight

  25. http://httparchive.org/interesting.php#bytesperpage

  26. None
  27. None
  28. None

  29. Things to do now

  30. Things to do now • Gzip text resources (CSS/JS)

  31. Things to do now • Gzip text resources (CSS/JS) •

    Minify CSS/JS

  32. Things to do now • Gzip text resources (CSS/JS) •

    Minify CSS/JS • Optimize Images

  33. Things to do now • Gzip text resources (CSS/JS) •

    Minify CSS/JS • Optimize Images • smush.it (web)

  34. Things to do now • Gzip text resources (CSS/JS) •

    Minify CSS/JS • Optimize Images • smush.it (web) • Wesley (command line)

  35. Things to do now • Gzip text resources (CSS/JS) •

    Minify CSS/JS • Optimize Images • smush.it (web) • Wesley (command line)

  36. 2. The Right Bytes

  37. None
  38. None

  39. /scripts/modernizr.js /scripts/mosaic.1.0.1.min.js /scripts/jquery.hashchange.min.js /scripts/jquery.easytabs.min.js /scripts/top-nav.js /scripts/content-swap.js /scripts/easytabs-settings.js /scripts/social-media-pane.js /scripts/jquery.touchSwipe.min.js /scripts/show-more.js

    /scripts/googleSearch.js /scripts/touchswipe-settings.js /scripts/mosaic-settings.js /scripts/jquery.flexslider.js /scripts/jquery.tmpl.min.js /scripts/facebook-wall.js /scripts/mobile-nav.js

  40. Problems With JavaScript

  41. Problems With JavaScript • Blocks the main thread

  42. Problems With JavaScript • Blocks the main thread • Parse

    and execution time

  43. Problems With JavaScript • Blocks the main thread • Parse

    and execution time • Eats up CPU/battery on mobile

  44. Not All Bytes Are Created Equal

  45. 3. Delivering The Bytes

  46. None
  47. None
  48. None
  49. None
  50. None

  51. KeepAlive On

  52. None
  53. None
  54. None

  55. Things to do now

  56. Things to do now • Turn on KeepAlive in Your

    Apache Config

  57. Things to do now • Turn on KeepAlive in Your

    Apache Config • Consolidate CSS/JS files

  58. Things to do now • Turn on KeepAlive in Your

    Apache Config • Consolidate CSS/JS files • Add Caching Headers

  59. Quick Recap

  60. One Day of Work

  61. One Day of Work 1. Gzip text resources (CSS/JS)

  62. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive

  63. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive 3. Minify CSS/JS

  64. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive 3. Minify CSS/JS 4. Optimize Images

  65. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive 3. Minify CSS/JS 4. Optimize Images 5. Add Caching Headers

  66. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive 3. Minify CSS/JS 4. Optimize Images 5. Add Caching Headers 6. Eliminate unnecessary JavaScript

  67. One Day of Work 1. Gzip text resources (CSS/JS) 2.

    Turn on KeepAlive 3. Minify CSS/JS 4. Optimize Images 5. Add Caching Headers 6. Eliminate unnecessary JavaScript 7. Consolidate CSS/JS files

  68. Thanks!

  69. @jonathanklein ! [email protected] Get in Touch