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
Performance Choreography at WebPerfDays NY, 2014
Search
Tim Kadlec
September 18, 2014
Programming
3
700
Performance Choreography at WebPerfDays NY, 2014
Presented at WebPerfDays NY, in New York City, NY on September 18th, 2014.
Tim Kadlec
September 18, 2014
Tweet
Share
More Decks by Tim Kadlec
See All by Tim Kadlec
The State of Node.js Security, at Node.js Interactive 2017
tkadlec
1
410
JavaScript Exposed at Midwest JS
tkadlec
3
290
Focusing On What Matters, at Fluent, 2017
tkadlec
0
140
Once More, With Feeling at Code 2016 in Sydney
tkadlec
1
680
Once More, With Feeling
tkadlec
9
1.7k
Mobile Image Processing at London Web Perf Meetup, 2016
tkadlec
1
210
Better By Proxy at Velocity NY 2015
tkadlec
3
680
Getting Started with Performance Budgets at HighEdWeb Technical Academy, 2015
tkadlec
9
1.2k
Reaching Everyone, Fast at From the Front, 2015
tkadlec
8
7.2k
Other Decks in Programming
See All in Programming
テスターからテストエンジニアへ ~新米テストエンジニアが歩んだ9ヶ月振り返り~
non0113
2
250
[DevinMeetupTokyo2025] コード書かせないDevinの使い方
takumiyoshikawa
2
240
0から始めるモジュラーモノリス-クリーンなモノリスを目指して
sushi0120
0
250
decksh - a little language for decks
ajstarks
4
21k
Go製CLIツールをnpmで配布するには
syumai
2
1k
대규모 트래픽을 처리하는 프론트 개발자의 전략
maryang
0
110
AIのメモリー
watany
12
1.2k
NEWT Backend Evolution
xpromx
1
170
SQLアンチパターン第2版 データベースプログラミングで陥りがちな失敗とその対策 / Intro to SQL Antipatterns 2nd
twada
PRO
35
11k
CIを整備してメンテナンスを生成AIに任せる
hazumirr
0
410
QA x AIエコシステム段階構築作戦
osu
0
220
リッチエディターを安全に開発・運用するために
unachang113
1
330
Featured
See All Featured
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
770
Improving Core Web Vitals using Speculation Rules API
sergeychernyshev
18
1k
Being A Developer After 40
akosma
90
590k
For a Future-Friendly Web
brad_frost
179
9.8k
Docker and Python
trallard
45
3.5k
Balancing Empowerment & Direction
lara
1
520
Java REST API Framework Comparison - PWX 2021
mraible
31
8.7k
Agile that works and the tools we love
rasmusluckow
329
21k
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.4k
Stop Working from a Prison Cell
hatefulcrawdad
271
21k
The Language of Interfaces
destraynor
158
25k
Faster Mobile Websites
deanohume
308
31k
Transcript
Performance Choreography September 18, 2014 at WebPerfDays NY ! Tim
Kadlec @tkadlec
[email protected]
None
None
None
None
None
in-between moments impact perception
None
None
“It’s solely intended to enhance the user’s perception of your
app as quick to launch and immediately ready for use.
None
http://www.lukew.com/ff/entry.asp?1797
http://www.lukew.com/ff/entry.asp?1797
progress bars focus on the waiting
skeleton screens focus on the progress
None
None
None
None
slow is valuable
None
None
tell people you’re working for them
None
<200ms http://bit.ly/1rfjmzU
“A rule of thumb: However long you think you need,
half it. Then half it again! Rachel Nabors Award Winning Cartoonist
“Confession: sometimes when we release an update, I tighten up
an old transition by ~50ms. ! Result: "Wow, this new version feels faster." Cenny Bowles Design Manager at Twitter
http://bit.ly/1pgJ8OD
http://bit.ly/1pgJ8OD
http://bit.ly/1pgJ8OD
this isn’t difficult
people like beautiful things
we are performance engineers
we are performance choreographers
thank you September 18, 2014 at WebPerfDays NY ! Tim
Kadlec @tkadlec
[email protected]