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
900
Guardian Responsive Design, SmashingConf 2013
Avatar for Andy Hume andyhume
6
690
Web Fonts as a Progressive Enhancement, Ampersand 2013
Avatar for Andy Hume andyhume
2
810
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
330
Anatomy of a responsive page load, Responsive Day Out 2013
Avatar for Andy Hume andyhume
23
3.4k
Responsive Guardian
Avatar for Andy Hume andyhume
21
1.2k
CSS for grown ups: maturing best practises, SXSW 2012
Avatar for Andy Hume andyhume
101
47k

Other Decks in Technology

See All in Technology
vLLM Community Meetup Tokyo #3 オープニングトーク
Avatar for jpishikawa jpishikawa
0
310
白金鉱業Meetup_Vol.22_Orbital Senseを支える衛星画像のマルチモーダルエンベディングと地理空間のあいまい検索技術
Avatar for BrainPad brainpadpr
2
290
SRE NEXT 2026 CfP レビュアーが語る聞きたくなるプロポーザルとは？
Avatar for Yuta Kawasaki yutakawasaki0911
0
210
非情報系研究者へ送る Transformer入門
Avatar for Ryo Ishiyama rishiyama
10
6.9k
IBM Bobを使って、PostgreSQLのToDoアプリをDb2へ変換してみよう/202603_Dojo_Bob
Avatar for Mayumi Hirano mayumihirano
1
300
マルチアカウント環境でSecurity Hubの運用！導入の苦労とポイント / JAWS DAYS 2026
Avatar for GENDA genda
0
380
Claude Codeの進化と各機能の活かし方
Avatar for Oikon oikon48
21
11k
20260305_【白金鉱業】分析者が地理情報を武器にするための軽量なアドホック分析環境
Avatar for Yuya Kaneta yucho147
3
220
[JAWSDAYS2026]Who is responsible for IAM
Avatar for Mizuki TSUJI mizukibbb
0
340
製造業ドメインにおける LLMプロダクト構築： 複雑な文脈へのアプローチ
Avatar for recruiting@caddi.jp caddi_eng
1
550
クラウド × シリコンの Mashup - AWS チップ開発で広がる AI 基盤の選択肢
Avatar for Hiroshi Tokoyo htokoyo
2
170
JAWSDAYS2026_A-6_現場SEが語る 回せるセキュリティ運用～設計で可視化、AIで加速する「楽に回る」運用設計のコツ～
Avatar for s-hata shoki_hata
0
2.9k

Featured

See All Featured
Marketing to machines
Avatar for Jono Alderson jonoalderson
1
5k
For a Future-Friendly Web
Avatar for Brad Frost brad_frost
183
10k
The Impact of AI in SEO - AI Overviews June 2024 Edition
Avatar for Aleyda Solis aleyda
5
760
Easily Structure & Communicate Ideas using Wireframe
Avatar for Afnizar Nur Ghifari afnizarnur
194
17k
Deep Space Network (abreviated)
Avatar for Tony Rice tonyrice
0
87
What Being in a Rock Band Can Teach Us About Real World SEO
Avatar for Ade Holder 427marketing
0
190
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
Avatar for Dan Newman danielanewman
231
22k
Ecommerce SEO: The Keys for Success Now & Beyond - #SERPConf2024
Avatar for Aleyda Solis aleyda
1
1.8k
Lightning Talk: Beautiful Slides for Beginners
Avatar for Ines Montani inesmontani
PRO
1
480
A Modern Web Designer's Workflow
Avatar for Chris Coyier chriscoyier
698
190k
DBのスキルで生き残る技術 - AI時代におけるテーブル設計の勘所
Avatar for soudai sone soudai
PRO
62
51k
So, you think you're a good person
Avatar for Per Axbom axbom
PRO
2
1.9k

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