hellerbarde

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

begoon

1. Господи, это опять вы.... - Thank you very much for your email.
2. Если до завтра не предоставите документы, пеняйте на себя. Тут вам не детский сад.- We will do our best to proceed with your request however for the best result the documents should reach us not later than tomorrow.
3. Вы читать умеете? - You can find this information below.
4. Сколько можно напоминать!- Kind reminder
5. Неужели так сложно подписать документ там, где нужно - Please sign in the place marked with yellow sticker
6. Что у тебя в школе было по математике? - Let's reconfirm the figures.
7. Мы лучше сделаем это сами.- Thank you for your kind assistance.
8. Я уже сто раз вам это присылал. - Kindly find attached.
9. Ага, сейчас все брошу и побегу разбираться. - I’ll look into it and revert soonest.
10. Да поймите же вы наконец - Please kindly review the matter again.

nikcub

In August 2007 a hacker found a way to expose the PHP source code on facebook.com. He retrieved two files and then emailed them to me, and I wrote about the issue:

http://techcrunch.com/2007/08/11/facebook-source-code-leaked/

It became a big deal:

http://www.techmeme.com/070812/p1#a070812p1

The two files are index.php (the homepage) and search.php (the search page)

mbostock

license: gpl-3.0
height: 600
redirect: https://observablehq.com/@d3/d3-force-directed-graph

postmodern

Do your part to resist Government surveillance and take back your privacy:

• Browser Privacy: HTTPS Everywhere, AdBlock Plus + EasyList, Disconnect, NoScript (FireFox), NotScript (Chrome)
• VPNs: Private Internet Access (US), BTGuard (Canada), ItsHidden (Africa), Ipredator (Sweden), Faceless.me (Cyprus / Netherlands)
• Internet Anonymization: Tor, Tor Browser Bundle, I2P
• Disk Encryption: TrueCrypt (Windows / OSX / Linux), File Vault

dypsilon

Frontend Development

Attention: the list was moved to

https://github.com/dypsilon/frontend-dev-bookmarks

This page is not maintained anymore, please update your bookmarks.

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dypsilon

Backend Development

• node.js
  • Installation paths: use one of these techniques to install node and npm without having to sudo.
  • Node.js HOWTO: Install Node+NPM as user (not root) under Unix OSes
  • Felix's Node.js Guide
  • Creating a REST API using Node.js, Express, and MongoDB
  • Node Cellar Sample Application with Backbone.js, Twitter Bootstrap, Node.js, Express, and MongoDB
  • JavaScript Event Loop
• Node.js for PHP programmers

jbenet

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

tsiege

ANNOUNCEMENT

I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!






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bobbygrace

Hello, visitors! If you want an updated version of this styleguide in repo form with tons of real-life examples… check out Trellisheets! https://github.com/trello/trellisheets

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Trello CSS Guide

“I perfectly understand our CSS. I never have any issues with cascading rules. I never have to use !important or inline styles. Even though somebody else wrote this bit of CSS, I know exactly how it works and how to extend it. Fixes are easy! I have a hard time breaking our CSS. I know exactly where to put new CSS. We use all of our CSS and it’s pretty small overall. When I delete a template, I know the exact corresponding CSS file and I can delete it all at once. Nothing gets left behind.”

You often hear updog saying stuff like this. Who’s updog? Not much, who is up with you?