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Avatar for Jonathan Klein Jonathan Klein
November 15, 2013
Technology
460
1

Upgrading the Web - Driving Support For New Standards

I gave this talk at Velocity London 2013.

Slides and links available at jkle.in/upgrade

Avatar for Jonathan Klein

Jonathan Klein

November 15, 2013

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Transcript

  1. Upgrading the Web Driving Support For New Standards Velocity London

    2013 Jonathan Klein @jonathanklein Friday, November 15, 13

  2. Slides, Links jkle.in/upgrade Friday, November 15, 13

  3. About Me Friday, November 15, 13

  4. About Me • Performance Engineer At Etsy Friday, November 15,

    13

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

    the Etsy Site Performance Reports Friday, November 15, 13

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

    the Etsy Site Performance Reports • Organize Boston Web Perf Meetup Group Friday, November 15, 13

  7. Etsy Stats Friday, November 15, 13

  8. Friday, November 15, 13

  9. Friday, November 15, 13

  10. Friday, November 15, 13

  11. A Story Friday, November 15, 13

  12. A Story From the Future Friday, November 15, 13

  13. Friday, November 15, 13

  14. http://goo.gl/Uj3w9y Friday, November 15, 13

  15. Things You Learned Friday, November 15, 13

  16. Things You Learned • Hop Hints Friday, November 15, 13

  17. Things You Learned • Hop Hints • Client Hints Friday,

    November 15, 13

  18. Things You Learned • Hop Hints • Client Hints •

    WebP Friday, November 15, 13

  19. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 Friday, November 15, 13

  20. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  21. What Should You Implement? Friday, November 15, 13

  22. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  23. HTTP Origin/Hop Hints Friday, November 15, 13

  24. HTTP Origin/Hop Hints • IETF Draft Friday, November 15, 13

  25. HTTP Origin/Hop Hints • IETF Draft • HTTP Response Header

    Friday, November 15, 13

  26. HTTP Origin/Hop Hints • IETF Draft • HTTP Response Header

    •OH: a,b=6,c Friday, November 15, 13

  27. HTTP Origin/Hop Hints • IETF Draft • HTTP Response Header

    •OH: a,b=6,c • Tells the browser about server capabilities Friday, November 15, 13

  28. HTTP Origin/Hop Hints Friday, November 15, 13

  29. HTTP Origin/Hop Hints • Small Request Headers Friday, November 15,

    13

  30. HTTP Origin/Hop Hints • Small Request Headers • Relative Referers

    Friday, November 15, 13

  31. HTTP Origin/Hop Hints • Small Request Headers • Relative Referers

    • Omitting Cookies Friday, November 15, 13

  32. HTTP Origin/Hop Hints • Small Request Headers • Relative Referers

    • Omitting Cookies • Sharing Connections Friday, November 15, 13

  33. HTTP Origin/Hop Hints • Small Request Headers • Relative Referers

    • Omitting Cookies • Sharing Connections • Pipeline Depth Friday, November 15, 13

  34. Reduce Header Size Friday, November 15, 13

  35. Optimize Transfer Friday, November 15, 13

  36. No Content Changes Friday, November 15, 13

  37. Friday, November 15, 13

  38. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  39. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  40. Client Hints Friday, November 15, 13

  41. Client Hints • IETF Draft Friday, November 15, 13

  42. Client Hints • IETF Draft • HTTP Request Header Friday,

    November 15, 13

  43. Client Hints • IETF Draft • HTTP Request Header •CH-DPR:

    2.0 Friday, November 15, 13

  44. Client Hints • IETF Draft • HTTP Request Header •CH-DPR:

    2.0 • Tells the server about browser capabilities Friday, November 15, 13

  45. Friday, November 15, 13

  46. Will Also Specify Height/Width Friday, November 15, 13

  47. Simplifies Markup Friday, November 15, 13

  48. Friday, November 15, 13

  49. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  50. Friday, November 15, 13

  51. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  52. WebP Friday, November 15, 13

  53. WebP • New image format from Google Friday, November 15,

    13

  54. WebP • New image format from Google • 25-34% smaller

    than JPEG Friday, November 15, 13

  55. WebP • New image format from Google • 25-34% smaller

    than JPEG • Lossless Option Friday, November 15, 13

  56. WebP • New image format from Google • 25-34% smaller

    than JPEG • Lossless Option • Alpha Transparency Friday, November 15, 13

  57. WebP • New image format from Google • 25-34% smaller

    than JPEG • Lossless Option • Alpha Transparency • Growing adoption Friday, November 15, 13

  58. Friday, November 15, 13

  59. Now We Are Getting Somewhere... Friday, November 15, 13

  60. Friday, November 15, 13

  61. Friday, November 15, 13

  62. Key Stats First Run Bytes 576KB Start Render 932ms Speed

    Index 1269ms Friday, November 15, 13

  63. Brief Aside: Speed Index Friday, November 15, 13

  64. Friday, November 15, 13

  65. Convert JPEGs to WebP Friday, November 15, 13

  66. Friday, November 15, 13

  67. Key Stats First Run WebP Difference Bytes 576KB 387KB -33%

    Start Render 932ms 1019ms +9% Speed Index 1269ms 1278ms <1% Friday, November 15, 13

  68. Friday, November 15, 13

  69. Its Future is Uncertain Friday, November 15, 13

  70. Friday, November 15, 13

  71. Friday, November 15, 13

  72. Challenges with WebP Friday, November 15, 13

  73. Challenges with WebP • Worse shareability Friday, November 15, 13

  74. Challenges with WebP • Worse shareability • Increased decoding time

    Friday, November 15, 13

  75. Challenges with WebP • Worse shareability • Increased decoding time

    • Controversial studies around quality/size Friday, November 15, 13

  76. Challenges with WebP • Worse shareability • Increased decoding time

    • Controversial studies around quality/size • No progressive decoding (yet) Friday, November 15, 13

  77. Still a Big Bandwidth Win Friday, November 15, 13

  78. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  79. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  80. SPDY/HTTP 2.0 Friday, November 15, 13

  81. SPDY/HTTP 2.0 • Next version of HTTP Friday, November 15,

    13

  82. SPDY/HTTP 2.0 • Next version of HTTP • HTTP Multiplexing

    Friday, November 15, 13

  83. SPDY/HTTP 2.0 • Next version of HTTP • HTTP Multiplexing

    • Header Compression Friday, November 15, 13

  84. SPDY/HTTP 2.0 • Next version of HTTP • HTTP Multiplexing

    • Header Compression • Prioritization Friday, November 15, 13

  85. SPDY/HTTP 2.0 • Next version of HTTP • HTTP Multiplexing

    • Header Compression • Prioritization • Wide support Friday, November 15, 13

  86. Friday, November 15, 13

  87. No More... Friday, November 15, 13

  88. No More... • Domain Sharding Friday, November 15, 13

  89. No More... • Domain Sharding • Spriting Images Friday, November

    15, 13

  90. No More... • Domain Sharding • Spriting Images • Concatenating

    Files Friday, November 15, 13

  91. No More... • Domain Sharding • Spriting Images • Concatenating

    Files • DataURIs Friday, November 15, 13

  92. Friday, November 15, 13

  93. Friday, November 15, 13

  94. Slides, Links jkle.in/upgrade Friday, November 15, 13

  95. Let’s See it in Action Friday, November 15, 13

  96. Friday, November 15, 13

  97. Friday, November 15, 13

  98. Before SPDY Friday, November 15, 13

  99. After SPDY Friday, November 15, 13

  100. Key Stats First Run SPDY/ HTTP 2.0 Difference Bytes 387KB

    387KB - Start Render 1019ms 972ms -5% Speed Index 1278ms 1108ms -14% Friday, November 15, 13

  101. Friday, November 15, 13

  102. Friday, November 15, 13

  103. Sites Using SPDY Today Friday, November 15, 13

  104. Sites Using SPDY Today • Most (all?) Google Properties Friday,

    November 15, 13

  105. Sites Using SPDY Today • Most (all?) Google Properties •

    Facebook Friday, November 15, 13

  106. Sites Using SPDY Today • Most (all?) Google Properties •

    Facebook • Twitter Friday, November 15, 13

  107. Sites Using SPDY Today • Most (all?) Google Properties •

    Facebook • Twitter • You? Friday, November 15, 13

  108. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  109. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  110. Pre-fetching • Fetch assets for next page • Speeds up

    navigation <link rel="prefetch" href="/foo.css"> Friday, November 15, 13

  111. WebPagetest Script logData 0 navigate https://velocity.jkle.in logData 1 navigate https://velocity.jkle.in/product.html

    Friday, November 15, 13

  112. Friday, November 15, 13

  113. Key Stats First Run Bytes 85KB Speed Index 479ms CSS

    Files 2 JS Files 6 Friday, November 15, 13

  114. Prefetch <link rel="prefetch" href="/prestashop/themes/default/css/product.css"> <link rel="prefetch" href="/prestashop/js/jquery/plugins/fancybox/jquery.fancybox.css"> <link rel="prefetch" href="/prestashop/js/jquery/plugins/fancybox/jquery.fancybox.js">

    <link rel="prefetch" href="/prestashop/js/jquery/plugins/jquery.idTabs.js"> <link rel="prefetch" href="/prestashop/js/jquery/plugins/jquery.scrollTo.js"> <link rel="prefetch" href="/prestashop/js/jquery/plugins/jquery.serialScroll.js"> <link rel="prefetch" href="/prestashop/themes/default/js/tools.js"> <link rel="prefetch" href="/prestashop/themes/default/js/product.js"> Friday, November 15, 13

  115. Friday, November 15, 13

  116. Key Stats First Run Pre-fetching Difference Bytes 85KB 50KB -40%

    Speed Index 479ms 290ms -40% CSS Files 2 0 -100% JS Files 6 0 -100% Friday, November 15, 13

  117. Friday, November 15, 13

  118. Things You Learned • Hop Hints • Client Hints •

    WebP • SPDY/HTTP 2.0 • Pre-fetching Friday, November 15, 13

  119. Browser Support Friday, November 15, 13

  120. Friday, November 15, 13

  121. These Are Still Good Options Friday, November 15, 13

  122. Convincing CDNs Would Be HUGE Friday, November 15, 13

  123. Action Steps Friday, November 15, 13

  124. Action Steps • Implement as much as you can Friday,

    November 15, 13

  125. Action Steps • Implement as much as you can •

    Speak/blog about challenges Friday, November 15, 13

  126. Action Steps • Implement as much as you can •

    Speak/blog about challenges • Ask your CDN for support Friday, November 15, 13

  127. Action Steps • Implement as much as you can •

    Speak/blog about challenges • Ask your CDN for support • Report bugs Friday, November 15, 13

  128. Let’s Upgrade The Web Friday, November 15, 13

  129. Thanks! Friday, November 15, 13

  130. @jonathanklein [email protected] www.etsy.com/careers Get in Touch Friday, November 15, 13