Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Building for performance and resilience
Search
Andy Hume
June 17, 2014
Technology
5
1.2k
Building for performance and resilience
Andy Hume
June 17, 2014
Tweet
Share
More Decks by Andy Hume
See All by Andy Hume
Architecting resilient front-ends, jQuery UK, 2015
andyhume
2
1.2k
Architecting resilient front ends
andyhume
3
870
Guardian Responsive Design, SmashingConf 2013
andyhume
6
660
Web Fonts as a Progressive Enhancement, Ampersand 2013
andyhume
2
780
Anatomy of a responsive page load, WhiskyWeb 2013
andyhume
10
1.9k
Breaking News & Breaking Software, SyncConf 2013
andyhume
0
290
Anatomy of a responsive page load, Responsive Day Out 2013
andyhume
23
3.3k
Responsive Guardian
andyhume
21
1.1k
CSS for grown ups: maturing best practises, SXSW 2012
andyhume
101
47k
Other Decks in Technology
See All in Technology
「魔法少女まどか☆マギカ Magia Exedra」のグローバル展開を支える、開発チームと翻訳チームの「意識しない協創」を実現するローカライズシステム
gree_tech
PRO
0
420
つくって納得、つかって実感! 大規模言語モデルことはじめ
recruitengineers
PRO
32
12k
ヘブンバーンズレッドにおける、世界観を活かしたミニゲーム企画の作り方
gree_tech
PRO
0
410
なぜSaaSがMCPサーバーをサービス提供するのか?
sansantech
PRO
2
510
ZOZOマッチのアーキテクチャと技術構成
zozotech
PRO
2
870
ここ一年のCCoEとしてのAWSコスト最適化を振り返る / CCoE AWS Cost Optimization devio2025
masahirokawahara
1
940
個人CLAUDE.md紹介と設定から学んだこと/introduce-my-claude-md
shibayu36
0
140
Oracle Cloud Infrastructure:2025年8月度サービス・アップデート
oracle4engineer
PRO
0
160
役割は変わっても、変わらないもの 〜スクラムマスターからEMへの転身で学んだ信頼構築の本質〜 / How to build trust
shinop
0
150
AI時代にPdMとPMMはどう連携すべきか / PdM–PMM-collaboration-in-AI-era
rakus_dev
0
240
まだ間に合う! StrandsとBedrock AgentCoreでAIエージェント構築に入門しよう
minorun365
PRO
10
680
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
30k
Featured
See All Featured
Keith and Marios Guide to Fast Websites
keithpitt
411
22k
Designing for Performance
lara
610
69k
StorybookのUI Testing Handbookを読んだ
zakiyama
30
6.1k
It's Worth the Effort
3n
187
28k
Writing Fast Ruby
sferik
628
62k
ReactJS: Keep Simple. Everything can be a component!
pedronauck
667
120k
The Pragmatic Product Professional
lauravandoore
36
6.8k
The Straight Up "How To Draw Better" Workshop
denniskardys
236
140k
Fireside Chat
paigeccino
39
3.6k
The Art of Programming - Codeland 2020
erikaheidi
55
13k
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
61k
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
Transcript
BUILDING FOR @andyhume SmashingConf, New York, 2014 PERFORMANCE RESILIENCE Tuesday,
June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
WHY CARE? http://www.strangeloopnetworks.com/resources/infographics/web-performance-and-ecommerce/ Tuesday, June 17, 14
Measure http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
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
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
Your bosses love a story http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
Spread the word http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
What numbers?! http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 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
Tuesday, June 17, 14
Tuesday, June 17, 14
Tuesday, June 17, 14
Tuesday, June 17, 14
Tuesday, June 17, 14
Tuesday, June 17, 14
Tuesday, June 17, 14
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
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
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
Measure and tracking trends http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
SpeedCurve http://speedcurve.com Tuesday, June 17, 14
SpeedCurve http://speedcurve.com Tuesday, June 17, 14
How to optimize http://www.flickr.com/photos/freefoto/2231356418/ Tuesday, June 17, 14
Web performance 101 http://www.flickr.com/photos/freefoto/2231356418/ Content-Encoding: gzip Cache-Control: max-age=315360000 Tuesday, June
17, 14
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
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp SSL Handshake Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14
Optimizing: First byte DNS lookup TCP connect HTTP request Server
time HTTP resp HTTP Redirect SSL Handshake Tuesday, June 17, 14
Eliminate redirects Just eleminate redirects Flush the document early? Prefetch
DNS? But really, just eleminate redirects Optimizing: First byte Tuesday, June 17, 14
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
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Remote JS Optimizing: Start render HTML parser DOM tree Layout
Paint Render tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
inline script waiting on remote CSS Optimizing: Start render HTML
parser DOM tree Layout Paint Render tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree fetching remote stylesheets Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree Tuesday, June 17, 14
Avoid blocking scripts Optimizing: Start render Tuesday, June 17, 14
Optimizing: Start render <script> var script = document.createElement('script'); script.src =
"app.js"; document.head.appendChild(script); </script> Tuesday, June 17, 14
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
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree HTML pre- parser Tuesday, June 17, 14
Remote JS Optimizing: Start render HTML parser DOM tree Layout
Paint Render tree HTML pre- parser Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree HTML pre- parser Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree HTML pre- parser fetching remote stylesheets Tuesday, June 17, 14
Optimizing: Start render HTML parser DOM tree Layout Paint Render
tree HTML pre- parser Tuesday, June 17, 14
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
Optimizing: Start render <script src="app.js" async defer></script> Tuesday, June 17,
14
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
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
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
gzip compression (of course!) Far-future caching (of course!) Concatenate files
(of course!) Optimizing: Load time fully loaded Tuesday, June 17, 14
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
http://www.flickr.com/photos/vpickering/6824364286/ Resilience Tuesday, June 17, 14
http://www.flickr.com/photos/the_jorr/325224175/ Unreliable Tuesday, June 17, 14
http://www.flickr.com/photos/8040811@N06/3167877765 Progressive enhancement th Tuesday, June 17, 14
The future http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
Future: HTTP/2 SPDY Tuesday, June 17, 14
Future: HTTP/2 SPDY Multiplexing Cache pushing Tuesday, June 17, 14
Future: ServiceWorker Tuesday, June 17, 14
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
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
Experiment and measure http://www.flickr.com/photos/kayaker1204/4319542459/ Tuesday, June 17, 14
Experiment and measure http://www.flickr.com/photos/kayaker1204/4319542459/ Theorize Experiment, and... Measure Tuesday, June
17, 14
Thank-you! http://lanyrd.com/sdbmhb @andyhume Creative Commons Licensed Attribution, Non-Commercial, Share Alike
cc Tuesday, June 17, 14