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@jboner
jboner / latency.txt
Last active April 25, 2024 01:18
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
@chetan
chetan / yardoc_cheatsheet.md
Last active April 16, 2024 23:49
YARD cheatsheet
@lucasfais
lucasfais / gist:1207002
Created September 9, 2011 18:46
Sublime Text 2 - Useful Shortcuts

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T go to file
⌘⌃P go to project
⌘R go to methods
⌃G go to line
⌘KB toggle side bar
⌘⇧P command prompt
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@bishboria
bishboria / springer-free-maths-books.md
Last active March 22, 2024 11:19
Springer made a bunch of books available for free, these were the direct links
@nicerobot
nicerobot / README.md
Last active February 25, 2024 02:41
Mac OS X uninstall script for packaged install of node.js from https://stackoverflow.com/a/9287292/23056

To run this, you can try:

curl -ksO https://gist.githubusercontent.com/nicerobot/2697848/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh
@swalkinshaw
swalkinshaw / tutorial.md
Last active November 13, 2023 08:40
Designing a GraphQL API
@sinisterchipmunk
sinisterchipmunk / LICENSE
Last active September 8, 2023 17:57
tar, gzip, and untar files using ruby in memory without tempfiles
Copyright (C) 2011 by Colin MacKenzie IV
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
@dhoerl
dhoerl / KeychainItemWrapper.h
Last active April 4, 2023 08:15
KeychainItemWrapper ARCified. Added the ability to manage a dictionary in place of just a string - the #define PASSWORD_USES_DATA in the .m file switches the mode.
/*
File: KeychainItemWrapper.h
Abstract:
Objective-C wrapper for accessing a single keychain item.
Version: 1.2 - ARCified
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
Inc. ("Apple") in consideration of your agreement to the following
terms, and your use, installation, modification or redistribution of
@gudbergur
gudbergur / README.markdown
Created February 19, 2012 23:49
Bootstrap's Typeahead plugin extended (allowing for AJAX functionality) among other things

This is a fork of Bootstrap Typeahead that adds minimal but powerful extensions.

For example, process typeahead list asynchronously and return objects

  # This example does an AJAX lookup and is in CoffeeScript
  $('.typeahead').typeahead(
    # source can be a function
    source: (typeahead, query) ->
 # this function receives the typeahead object and the query string