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

Improving Performance with Responsive Images [j...

Avatar for newtron newtron
March 15, 2014
Programming
4
660

Improving Performance with Responsive Images [jQueryTO]

jQueryTO
March 15, 2014
https://github.com/nwtn/pres-respimg-perf-jqueryto
Avatar for newtron

newtron

March 15, 2014
Tweet

More Decks by newtron

See All by newtron
Universal web design [Accessibility Camp Toronto]
Avatar for newtron newtron
0
220
Universal web design [HackerYou a11y club]
Avatar for newtron newtron
0
200
Universal web design [Full Stack Toronto]
Avatar for newtron newtron
0
250
Information architecture as knowledge translation [World IA Day]
Avatar for newtron newtron
0
280
Improving performance with responsive (and responsible!) images [CSSDay.io]
Avatar for newtron newtron
1
370
Universal Web Design: How to create an awesome experience for every user [Open Source Bridge]
Avatar for newtron newtron
0
270
Improving performance with responsive (and responsible!) images [CSSConf]
Avatar for newtron newtron
6
680
Universal Web Design: How to create an awesome experience for every user [OpenWest]
Avatar for newtron newtron
0
270
Improving performance with responsive (and responsible!) images [OpenWest]
Avatar for newtron newtron
2
370

Other Decks in Programming

See All in Programming
MDN Web Docs に日本語翻訳でコントリビュートしたくなる
Avatar for uutan1108 ohmori_yusuke
1
130
Claude Code + Container Use と Cursor で作る ローカル並列開発環境のススメ / ccc local dev
Avatar for Yuichi Maekawa kaelaela
12
6.7k
ISUCON研修おかわり会 講義スライド
Avatar for Yuki Yata arfes0e2b3c
1
460
NPOでのDevinの活用
Avatar for みんなのコード codeforeveryone
0
870
VS Code Update for GitHub Copilot
Avatar for 74th(Atsushi Morimoto) 74th
2
670
型で語るカタ
Avatar for irof irof
0
520
ソフトウェア品質を数字で捉える技術。事業成長を支えるシステム品質の マネジメント
Avatar for takuya542 takuya542
2
14k
AIエージェントはこう育てる - GitHub Copilot Agentとチームの共進化サイクル
Avatar for Akira Kobori koboriakira
0
620
NEWT Backend Evolution
Avatar for Rodrigo Ramirez xpromx
1
110
PicoRuby on Rails
Avatar for makicamel makicamel
2
140
AI時代の『改訂新版 良いコード／悪いコードで学ぶ設計入門』 / ai-good-code-bad-code
Avatar for MinoDriven minodriven
22
9k
なぜ適用するか、移行して理解するClean Architecture 〜構造を超えて設計を継承する〜 / Why Apply, Migrate and Understand Clean Architecture - Inherit Design Beyond Structure
Avatar for shiro seike seike460
PRO
3
790

Featured

See All Featured
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
54
13k
Designing for humans not robots
Avatar for Tammie Lister tammielis
253
25k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
Avatar for Eileen M. Uchitelle eileencodes
138
34k
Writing Fast Ruby
Avatar for Erik Berlin sferik
628
62k
Practical Tips for Bootstrapping Information Extraction Pipelines
Avatar for Matthew Honnibal honnibal
PRO
20
1.3k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
Avatar for Eileen M. Uchitelle eileencodes
26
2.9k
Speed Design
Avatar for Sergey Chernyshev sergeychernyshev
32
1k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
Avatar for Chris Coyier chriscoyier
507
140k
StorybookのUI Testing Handbookを読んだ
Avatar for Shingo Yamazaki zakiyama
30
5.9k
ReactJS: Keep Simple. Everything can be a component!
Avatar for Pedro Nauck pedronauck
667
120k
Into the Great Unknown - MozCon
Avatar for Noah Learner thekraken
40
1.9k
Product Roadmaps are Hard
Avatar for C. Todd Lombardo iamctodd
PRO
54
11k

Transcript

  1. None

  2. Improving Performance with Responsive Images jQueryTO March 15, 2014

  3. https://github.com/nwtn/
 pres-respimg-perf-jqueryto

  4. “Good performance is good design” Brad Frost

  5. None
  6. None

  7. bradfrostweb.com

  8. “More human beings today have access to a cellphone than

    the United Nations says have access to a clean toilet.” Anand Giridharadas, New York Times, April 10 2010

  9. “More human beings today have access to a cellphone than

    the United Nations says have access to a clean toilet.” Anand Giridharadas, New York Times, April 10 2010

  10. bradfrostweb.com

  11. bradfrostweb.com

  12. 1.A flexible, grid-based layout, 2.Flexible images and media, 3.Media queries,

    a module from the CSS3 specification

  13. 1.A flexible, grid-based layout, 2.Flexible images and media 3.Media queries,

    a module from the CSS3 specification

  14. img { max-width: 100%; }

  15. None
  16. None

  17. A solution Serve one big image and let the browser

    scale it
  18. None
  19. None
  20. None

  21. Average web page size: 1,703 KB.
 
 
 Images account

    for 1,063 KB,
 over 62% of total.
 
 HTTP Archive, March 1 2014

  22. 2x resolution = 4x as many pixels

  23. energy more pixels = more money time

  24. “Good performance is good design” Brad Frost

  25. A better solution Serve an appropriately-sized image to each user

  26. Responsive Images

  27. None
  28. None
  29. None
  30. None

  31. SVG, WebP, JPEG XR

  32. <picture> + srcset:
 http://picture.responsiveimages.org/ Mozilla: Q1
 Blink (Chrome/Opera): Soon
 Webkit

    (Apple, etc.): Also soon?
 MS: ?

  33. <picture> + srcset:
 http://picture.responsiveimages.org/ Mozilla Q1
 Blink (Chrome/Opera) Soon
 Webkit

    (Apple, etc.) Also soon?
 MS ?

  34. Client Hints:
 http://tools.ietf.org/html/draft-grigorik-http-client-hints-01

  35. None

  36. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  37. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  38. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  39. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  40. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  41. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  42. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>

  43. <picture> <!-- art directed sources --> <source media="(min-width: 45em)" src="large.jpg"

    /> <source media="(min-width: 18em)" src="med.jpg" /> ! <!-- fallback --> <img src="small.jpg" alt="A rad wolf" /> </picture>
  44. None

  45. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>

  46. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>

  47. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>

  48. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>

  49. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>

  50. <picture> <!-- sources @ different resolutions --> <source srcset="pic1x.jpg 1x,

    pic2x.jpg 2x, pic4x.jpg 4x" /> ! <!-- fallback --> <img src="pic1x.jpg" alt="A rad wolf" /> </picture>
  51. None

  52. <img srcset="pic1x.jpg 1x, pic2x.jpg 2x, pic4x.jpg 4x" src="pic1x.jpg" alt="A rad

    wolf" />

  53. <img srcset="pic1x.jpg 1x, pic2x.jpg 2x, pic4x.jpg 4x" src="pic1x.jpg" alt="A rad

    wolf" />

  54. <img srcset="pic1x.jpg 1x, pic2x.jpg 2x, pic4x.jpg 4x" src="pic1x.jpg" alt="A rad

    wolf" />

  55. <img srcset="pic1x.jpg 1x, pic2x.jpg 2x, pic4x.jpg 4x" src="pic1x.jpg" alt="A rad

    wolf" />

  56. <img srcset="pic1x.jpg 1x, pic1.5x.jpg 1.5x, pic2x.jpg 2x, pic4x.jpg 4x" src="pic1x.jpg"

    alt="A rad wolf" />
  57. None

  58. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>

  59. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>

  60. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>

  61. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>

  62. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>

  63. <picture> <source media="(min-width: 45em)" srcset="large1.jpg 1x, large2.jpg 2x" /> <source

    media="(min-width: 18em)" srcset="med1.jpg 1x, med2.jpg 2x" /> <source srcset="small1.jpg 1x, small2.jpg 2x" /> <img src="small1.jpg" alt="A rad wolf" /> </picture>
  64. None

  65. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  66. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  67. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  68. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  69. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  70. <picture> <source sizes="100%" srcset="pic400.jpg 400w, pic800.jpg 800w, pic1600.jpg 1600w" />

    ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>
  71. None

  72. <picture> <source sizes="(min-width: 45em) 33%, (min-width: 18em) 50%, 100%" srcset="pic400.jpg

    400w, pic800.jpg 800w, pic1600.jpg 1600w" /> ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>

  73. <picture> <source sizes="(min-width: 45em) 33%, (min-width: 18em) 50%, 100%" srcset="pic400.jpg

    400w, pic800.jpg 800w, pic1600.jpg 1600w" /> ! <img src="pic400.jpg" alt="A rad wolf" /> </picture>
  74. None

  75. <picture> <source type="image/webp" src="wolf.webp" /> <img src="wolf.jpg" alt="A rad wolf"

    /> </picture>

  76. <picture> <source type="image/webp" src="wolf.webp" /> <img src="wolf.jpg" alt="A rad wolf"

    /> </picture>

  77. <picture> <source type="image/webp" src="wolf.webp" /> <img src="wolf.jpg" alt="A rad wolf"

    /> </picture>

  78. <picture> <source type="image/webp" src="wolf.webp" /> <img src="wolf.jpg" alt="A rad wolf"

    /> </picture>

  79. http://picture.responsiveimages.org/

  80. Picturefill by Scott Jehl https://github.com/scottjehl/picturefill

  81. <span data-picture> <span data-source data-srcset="" data-src="" data-type="" data-media=""></span> <noscript> <img

    /> </noscript> </span>

  82. <span data-picture> <span data-source data-srcset="" data-src="" data-type="" data-media=""></span> <noscript> <img

    /> </noscript> </span>

  83. <span data-picture> <span data-source data-srcset="" data-src="" data-type="" data-media=""></span> <noscript> <img

    /> </noscript> </span>

  84. <span data-picture> <span data-source data-srcset="" data-src="" data-type="" data-media=""></span> <noscript> <img

    /> </noscript> </span>

  85. Imager https://github.com/BBC-News/Imager.js RWD.Images https://github.com/stowball/rwd.images.js

  86. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG

  87. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG
  88. None
  89. None
  90. None

  91. Resource Priorities http://www.w3.org/TR/resource-priorities/

  92. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG

  93. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG

  94. ImageOptim-CLI http://jamiemason.github.io/ImageOptim-CLI/

  95. grunt-svgmin https://github.com/sindresorhus/grunt-svgmin Scour https://launchpad.net/scour

  96. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG

  97. Responsible Images:! Responsive Images Resource Priorities Image Optimization Use Fewer

    Images Use SVG

  98. Responsible Images:! Responsive Images Resource Priorities Image Optimization Fewer Images

    Use SVG

  99. Responsible Images:! Responsive Images Resource Priorities Image Optimization Fewer Images

    SVG

  100. Impact

  101. None
  102. None

  103. 1,870KB 564KB 3,505KB Images (content) Images (style) Other content

  104. Optimizations • ImageOptim-CLI on all images • WebP • Responsive

    images using Picturefill, for DPI- and viewport switching on content images

  105. 1,870KB 564KB 3,505KB Images (content) Images (style) Other content

  106. 1,870KB 72KB 261KB Images (content) Images (style) Other content

  107. 1,870KB 72KB 534KB Images (content) Images (style) Other content

  108. None

  109. “Good performance is good design” Brad Frost

  110. “Responsible images are good design” Dave Newton

  111. David Newton! @newtron on Twitter @nwtn on GitHub [email protected]