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@nepsilon
nepsilon / speed-is-a-feature-10-tips-faster-browser-networking.md
Created September 6, 2016 05:31
Speed is a feature: 10 tips for faster browser networking — First published in fullweb.io issue #64

Speed is a feature: 10 tips for faster browser networking

1. Minimize TCP connections

Ensure the web server uses Keep-Alive headers.

2. Reduce DNS look-ups

DNS look-ups are the first thing blocking your HTTP requests.

@paulirish
paulirish / what-forces-layout.md
Last active July 23, 2024 15:12
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@JaviLorbada
JaviLorbada / FRP iOS Learning resources.md
Last active June 17, 2024 06:08
The best FRP iOS resources.

Videos

@dypsilon
dypsilon / frontendDevlopmentBookmarks.md
Last active July 7, 2024 19:32
A badass list of frontend development resources I collected over time.
@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs