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
880
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
『OCI で学ぶクラウドネイティブ 実践 × 理論ガイド』 書籍概要
oracle4engineer
PRO
2
120
about #74462 go/token#FileSet
tomtwinkle
1
420
AWS 잘하는 개발자 되기 - AWS 시작하기: 클라우드 개념부터 IAM까지
kimjaewook
0
110
Azure Well-Architected Framework入門
tomokusaba
1
330
職種別ミートアップで社内から盛り上げる アウトプット文化の醸成と関係強化/ #DevRelKaigi
nishiuma
2
140
SOC2取得の全体像
shonansurvivors
1
410
Why React!?? Next.jsそしてReactを改めてイチから選ぶ
ypresto
10
4.5k
多野優介
tanoyusuke
1
460
E2Eテスト設計_自動化のリアル___Playwrightでの実践とMCPの試み__AIによるテスト観点作成_.pdf
findy_eventslides
1
490
Azure SynapseからAzure Databricksへ 移行してわかった新時代のコスト問題!?
databricksjapan
0
150
バイブコーディングと継続的デプロイメント
nwiizo
2
440
Oracle Cloud Infrastructure:2025年9月度サービス・アップデート
oracle4engineer
PRO
0
470
Featured
See All Featured
Scaling GitHub
holman
463
140k
jQuery: Nuts, Bolts and Bling
dougneiner
64
7.9k
Done Done
chrislema
185
16k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Building Applications with DynamoDB
mza
96
6.6k
Six Lessons from altMBA
skipperchong
28
4k
Art, The Web, and Tiny UX
lynnandtonic
303
21k
Imperfection Machines: The Place of Print at Facebook
scottboms
269
13k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
48
9.7k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
229
22k
Building a Modern Day E-commerce SEO Strategy
aleyda
43
7.7k
Why Our Code Smells
bkeepers
PRO
339
57k
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