Skip to content

Instantly share code, notes, and snippets.

View jhanschoo's full-sized avatar
👋

Johannes Choo jhanschoo

👋
View GitHub Profile
@jboner
jboner / latency.txt
Last active June 17, 2024 02:27
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@brandonb927
brandonb927 / osx-for-hackers.sh
Last active June 13, 2024 02:39
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx
@malarkey
malarkey / Contract Killer 3.md
Last active May 24, 2024 23:38
The latest version of my ‘killer contract’ for web designers and developers

When times get tough and people get nasty, you’ll need more than a killer smile. You’ll need a killer contract.

Used by 1000s of designers and developers Clarify what’s expected on both sides Helps build great relationships between you and your clients Plain and simple, no legal jargon Customisable to suit your business Used on countless web projects since 2008

…………………………

@ndarville
ndarville / business-models.md
Last active January 13, 2024 17:27
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google
@feross
feross / Respect Rollcall.html
Last active March 9, 2022 04:37
A list of bloggers who I like, pasted from my old blog.
<!-- Respect Rollcall -->
<li><a href="http://www.alistapart.com/articles/">A List Apart &#8212; for website builders</a></li>
<li><a href="http://abstrusegoose.com/">Abstruse Goose &#8212; my favorite comic</a></li>
<li><a href="http://al3x.net/">Alex Payne &#8212; technology rambling</a></li>
<li><a href="http://dashes.com/anil/">Anil Dash &#8212; on culture, apple &amp; design</a></li>
<li><a href="http://weblogs.mozillazine.org/asa/">Asa Dotzler &#8212; on mozilla &amp; software</a></li>
<li><a href="http://www.azarask.in/blog/">Aza Raskin &#8211; on design &amp; firefox</a></li>
<li><a href="http://christophzillgens.com/en/">Christoph Zillgens &#8212; interface design</a></li>
<li><a href="http://cssremix.com/">CSS Remix &#8212; gorgeous designs</a></li>
<li><a href="http://css-tricks.com/">CSS Tricks</a></li>
@philipn
philipn / gist:5274197
Last active October 20, 2022 02:37
Running Ubuntu on a Macbook Air

Running Ubuntu on a Macbook Air

You don't have to be a slave to OS X! Here's a guide to a sane dual-booting setup with Ubuntu 12.10 on your shiny MacBook Air. This is written and tested for a MacBook Air 5,2 (Mid 2012), but likely works the same with any modern Macbook.

Install according to instructions at this URL:

This file has been truncated, but you can view the full file.
阿爸 a1'ba4 18137
阿昌族 a1'chang1'zu2 50849
阿斗 a1'dou3 42632
阿飞 a1'fei1 48603
阿富汗 a1'fu4'han4 3461
阿訇 a1'hong1 34432
阿拉伯数字 a1'la1'bo2'shu4'zi4 35937
阿拉伯语 a1'la1'bo2'yu3 30476
阿妈 a1'ma1 16220
阿门 a1'men2 47913

Experimental Generation of Interpersonal Closeness

Instructions to Subjects Included With Task Slips Packet

This is a study of interpersonal closeness, and your task, which we think will be quite enjoyable, is simply to get close to your partner. We believe that the best way for you to get close to your partner is for you to share with them and for them to share with you. Of course, when we advise you about getting close to your partner, we are giving advice regarding your behavior in this demonstration only, we are not advising you about your behavior outside of this demonstration.

In order to help you get close we've arranged for the two of you to engage in a kind of sharing game. You're sharing time will be for about one hour, after which time we ask you to fill out a questionnaire concerning your experience of getting close to your partner.

You have been given three sets of slips. Each slip has a question or a task written on it. As soon as you both finish reading these instructions, you should

anonymous
anonymous / amazon.md
Created August 19, 2015 18:34

I would like to tell my story of burnout at Amazon, considering the fact that there is so many stories out there on both sides of the issue. My story is also on both sides of the issue, and I've had a lot of time to think about why people can see the same culture but come away with completely different conclusions. This is a throwaway because I still work there and I don't plan on changing that, and I don't exactly trust the company to take this in good faith, despite the fact that I mean this as a purely constructive criticism for a company that I really do like.

I am an autodidact (my formal education only tangentially describes what I can do), and a polymath (capable of holding my own amongst PhD-level Operations Researchers, Statisticians, Econometricians, Data Scientists, Computer Scientists, as well as Software Engineers). I love to solve real world problems, and in many ways am the perfect type of person for Amazon's culture. I started in a level 5 position, but felt from the beginning that I warrant

Principles of Adult Behavior

  1. Be patient. No matter what.
  2. Don’t badmouth: Assign responsibility, not blame. Say nothing of another you wouldn’t say to him.
  3. Never assume the motives of others are, to them, less noble than yours are to you.
  4. Expand your sense of the possible.
  5. Don’t trouble yourself with matters you truly cannot change.
  6. Expect no more of anyone than you can deliver yourself.
  7. Tolerate ambiguity.
  8. Laugh at yourself frequently.