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

Building for performance and resilience

Avatar for Andy Hume Andy Hume
June 17, 2014
Technology
5
1.2k

Building for performance and resilience

Avatar for Andy Hume

Andy Hume

June 17, 2014
Tweet

More Decks by Andy Hume

See All by Andy Hume
Architecting resilient front-ends, jQuery UK, 2015
Avatar for Andy Hume andyhume
2
1.2k
Architecting resilient front ends
Avatar for Andy Hume andyhume
3
880
Guardian Responsive Design, SmashingConf 2013
Avatar for Andy Hume andyhume
6
660
Web Fonts as a Progressive Enhancement, Ampersand 2013
Avatar for Andy Hume andyhume
2
790
Anatomy of a responsive page load, WhiskyWeb 2013
Avatar for Andy Hume andyhume
10
1.9k
Breaking News & Breaking Software, SyncConf 2013
Avatar for Andy Hume andyhume
0
300
Anatomy of a responsive page load, Responsive Day Out 2013
Avatar for Andy Hume andyhume
23
3.3k
Responsive Guardian
Avatar for Andy Hume andyhume
21
1.1k
CSS for grown ups: maturing best practises, SXSW 2012
Avatar for Andy Hume andyhume
101
47k

Other Decks in Technology

See All in Technology
AIエージェントによる業務効率化への飽くなき挑戦 -AWS上の実開発事例から学んだ効果、現実そしてギャップ-
Avatar for Kiminori Yokoi nasuvitz
5
1.6k
AWS re:Invent 2025事前勉強会資料 / AWS re:Invent 2025 pre study meetup
Avatar for Masanori Yamaguchi kinunori
0
1.1k
DMMの検索システムをSolrからElasticCloudに移行した話
Avatar for 小山凌太 hmaa_ryo
0
350
今から間に合う re:Invent 準備グッズと現地の地図、その他ラスベガスを周る際の Tips/reinvent-preparation-guide
Avatar for emi emiki
1
240
新米エンジニアをTech Leadに任命する ー 成長を支える挑戦的な人と組織のマネジメント
Avatar for Naoto Sato naopr
1
340
アノテーション作業書作成のGood Practice
Avatar for Cierpa & Company cierpa0905
PRO
1
380
AI時代の発信活動 ～技術者として認知してもらうための発信法～ / 20251028 Masaki Okuda
Avatar for SHIFT EVOLVE shift_evolve
PRO
1
140
AWSが好きすぎて、41歳でエンジニアになり、AAIを経由してAWSパートナー企業に入った話
Avatar for Yuuki Yamashita yama3133
2
220
AIエージェントを導入する [ 社内ナレッジ活用編 ] / Implement AI agents
Avatar for Akira Maeda glidenote
1
120
Digitization部 紹介資料
Avatar for Sansan, Inc. sansan33
PRO
1
5.8k
様々なファイルシステム
Avatar for Satoru Takeuchi sat
PRO
0
290
最近読んで良かった本 / Yokohama North Meetup #10
Avatar for Takuya Mukohira mktakuya
0
290

Featured

See All Featured
CSS Pre-Processors: Stylus, Less & Sass
Avatar for Bermon Painter bermonpainter
359
30k
Building a Modern Day 
E-commerce SEO Strategy
Avatar for Aleyda Solis aleyda
44
8k
How to Think Like a Performance Engineer
Avatar for Harry Roberts csswizardry
27
2.2k
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
13k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
Avatar for Morgane Peng morganepeng
132
19k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
Avatar for Chris Coyier chriscoyier
508
140k
The Cost Of JavaScript in 2023
Avatar for Addy Osmani addyosmani
55
9.1k
Scaling GitHub
Avatar for Zach Holman holman
463
140k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
Avatar for Irina Nazarova irinanazarova
9
1k
個人開発の失敗を避けるイケてる考え方 / tips for indie hackers
Avatar for panda_program panda_program
116
20k
The Power of CSS Pseudo Elements
Avatar for Geoffrey Crofte geoffreycrofte
80
6k
Distributed Sagas: A Protocol for Coordinating Microservices
Avatar for Caitie McCaffrey caitiem20
333
22k

Transcript

  1. BUILDING FOR @andyhume SmashingConf, New York, 2014 PERFORMANCE RESILIENCE Tuesday,

    June 17, 14

  2. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  3. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  4. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  5. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  6. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  7. WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14

  8. Measure http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  9. Measure http://www.flickr.com/photos/kayaker1204/4319542459/ We have a median page load me of

    seven seconds, and our primary compe tor has a median page load me of three seconds. Tell a story Tuesday, June 17, 14

  10. Measure http://www.flickr.com/photos/kayaker1204/4319542459/ Page load mes increased by 25% when we

    added feature x. Tell a story Tuesday, June 17, 14

  11. Your bosses love a story http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  12. Spread the word http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  13. What numbers?! http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  14. What numbers?! http://www.flickr.com/photos/kayaker1204/4319542459/ Page load time? Total download size? Start

    render time? Time to first byte? Response time? Total HTTP requests? Document load time? Tuesday, June 17, 14

  15. Tuesday, June 17, 14

  16. Tuesday, June 17, 14

  17. Tuesday, June 17, 14

  18. Tuesday, June 17, 14

  19. Tuesday, June 17, 14

  20. Tuesday, June 17, 14

  21. Tuesday, June 17, 14

  22. Load Time First Byte Start Render Fully Loaded Speed Index

    FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  23. Load Time First Byte Start Render Fully Loaded Speed Index

    FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  24. Load Time First Byte Start Render Fully Loaded Speed Index

    FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  25. Measure and tracking trends http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  26. SpeedCurve http://speedcurve.com Tuesday, June 17, 14

  27. SpeedCurve http://speedcurve.com Tuesday, June 17, 14

  28. How to optimize http://www.flickr.com/photos/freefoto/2231356418/ Tuesday, June 17, 14

  29. Web performance 101 http://www.flickr.com/photos/freefoto/2231356418/ Content-Encoding: gzip Cache-Control: max-age=315360000 Tuesday, June

    17, 14

  30. Optimizing: First byte http://www.flickr.com/photos/freefoto/2231356418/ Load Time First Byte Start Render

    Fully Loaded Speed Index FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  31. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp Tuesday, June 17, 14

  32. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp Tuesday, June 17, 14

  33. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp Tuesday, June 17, 14

  34. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp Tuesday, June 17, 14

  35. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp SSL Handshake Tuesday, June 17, 14

  36. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14

  37. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14

  38. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14

  39. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14

  40. Optimizing: First byte DNS lookup TCP connect HTTP request Server

    time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14

  41. Eliminate redirects Just eleminate redirects Flush the document early? Prefetch

    DNS? But really, just eleminate redirects Optimizing: First byte Tuesday, June 17, 14

  42. Optimizing: Start render http://www.flickr.com/photos/freefoto/2231356418/ Load Time First Byte Start Render

    Fully Loaded Speed Index FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  43. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  44. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  45. Remote JS Optimizing: Start render HTML parser DOM tree Layout

    Paint Render tree Tuesday, June 17, 14

  46. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  47. inline script waiting on remote CSS Optimizing: Start render HTML

    parser DOM tree Layout Paint Render tree Tuesday, June 17, 14

  48. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  49. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  50. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree fetching remote stylesheets Tuesday, June 17, 14

  51. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  52. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  53. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  54. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree Tuesday, June 17, 14

  55. Avoid blocking scripts Optimizing: Start render Tuesday, June 17, 14

  56. Optimizing: Start render <script> var script = document.createElement('script'); script.src =

    "app.js"; document.head.appendChild(script); </script> Tuesday, June 17, 14

  57. Optimizing: Start render <script> var script = document.createElement('script'); script.src =

    "app.js"; document.head.appendChild(script); </script> BREAKS THE PRE-PARSER! Tuesday, June 17, 14

  58. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree HTML pre- parser Tuesday, June 17, 14

  59. Remote JS Optimizing: Start render HTML parser DOM tree Layout

    Paint Render tree HTML pre- parser Tuesday, June 17, 14

  60. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree HTML pre- parser Tuesday, June 17, 14

  61. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree HTML pre- parser fetching remote stylesheets Tuesday, June 17, 14

  62. Optimizing: Start render HTML parser DOM tree Layout Paint Render

    tree HTML pre- parser Tuesday, June 17, 14

  63. Optimizing: Start render <script> var script = document.createElement('script'); script.src =

    "app.js"; document.head.appendChild(script); </script> BREAKS THE PRE-PARSER! Tuesday, June 17, 14

  64. Optimizing: Start render <script src="app.js" async defer></script> Tuesday, June 17,

    14

  65. Avoid blocking scripts Optimizing: Start render Move script elements to

    end of <body> Or... add async attribute to script elements Inline critical CSS Tuesday, June 17, 14

  66. Avoid blocking scripts Optimizing: Start render Move script elements to

    end of <body> Or... add async attribute to script elements Inline critical CSS https://github.com/pocketjoso/penthouse Tuesday, June 17, 14

  67. Optimizing: Load time fully loaded http://www.flickr.com/photos/freefoto/2231356418/ Load Time First Byte

    Start Render Fully Loaded Speed Index FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  68. gzip compression (of course!) Far-future caching (of course!) Concatenate files

    (of course!) Optimizing: Load time fully loaded Tuesday, June 17, 14

  69. Optimizing: Speed Index http://www.flickr.com/photos/freefoto/2231356418/ Load Time First Byte Start Render

    Fully Loaded Speed Index FIRST VIEW 3.783s 0.128s 0.676s 6.530s 1522 REPEAT VIEW 2.268s 0.486s 0.486s 3.617s 980 Tuesday, June 17, 14

  70. http://www.flickr.com/photos/vpickering/6824364286/ Resilience Tuesday, June 17, 14

  71. http://www.flickr.com/photos/the_jorr/325224175/ Unreliable Tuesday, June 17, 14

  72. http://www.flickr.com/photos/8040811@N06/3167877765 Progressive enhancement th Tuesday, June 17, 14

  73. The future http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  74. Future: HTTP/2 SPDY Tuesday, June 17, 14

  75. Future: HTTP/2 SPDY Multiplexing Cache pushing Tuesday, June 17, 14

  76. Future: ServiceWorker Tuesday, June 17, 14

  77. Future: ServiceWorker this.addEventListener('fetch', function (e) { if (e.request.url.host === 'guardian.co.uk')

    { e.forwardTo('http://theguardian.com'); } } (Possibly not possible) Tuesday, June 17, 14

  78. Future: ServiceWorker this.addEventListener('fetch', function (e) { if (window.innerWidth > 500)

    { e.forwardTo(e.request.url + '?width=large'); } } (Possibly not possible) Tuesday, June 17, 14

  79. Experiment and measure http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14

  80. Experiment and measure http://www.flickr.com/photos/kayaker1204/4319542459/ Theorize Experiment, and... Measure Tuesday, June

    17, 14

  81. Thank-you! http://lanyrd.com/sdbmhb @andyhume Creative Commons Licensed Attribution, Non-Commercial, Share Alike

    cc Tuesday, June 17, 14