defunkt

#!/usr/bin/env ruby
# Usage: gitio URL [CODE]
#
# Turns a github.com URL
#  into a git.io URL
#
# Copies the git.io URL to your clipboard.

url  = ARGV[0]
code = ARGV[1]

holman

Just install this in your apps like so:

gem 'test-spec-mini', :git => 'git://gist.github.com/1806986.git', :require => 'mini'

henrik

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

jboner

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

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

grenade

#!/bin/bash

mkdir -p ~/.ssh

# generate new personal ed25519 ssh keys
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_ed25519 -C "rob thijssen <[email protected]>"
ssh-keygen -o -a 100 -t ed25519 -f ~/.ssh/id_robtn -C "rob thijssen <[email protected]>"

# generate new host cert authority (host_ca) ed25519 ssh key
# used for signing host keys and creating host certs

langhard

/** *********************************************************
 *  API - Model - User
 ********************************************************* */
module.exports = function (sequelize, DataTypes) {
  return sequelize.define('User', {
    username: DataTypes.STRING,
    password: DataTypes.STRING,

    firstName: DataTypes.STRING,
    lastName: DataTypes.STRING,

rxaviers

People

:bowtie:	😄 :smile:	😆 :laughing:
😊 :blush:	😃 :smiley:	☺️ :relaxed:
😏 :smirk:	😍 :heart_eyes:	😘 :kissing_heart:
😚 :kissing_closed_eyes:	😳 :flushed:	😌 :relieved:
😆 :satisfied:	😁 :grin:	😉 :wink:
😜 :stuck_out_tongue_winking_eye:	😝 :stuck_out_tongue_closed_eyes:	😀 :grinning:
😗 :kissing:	😙 :kissing_smiling_eyes:	😛 :stuck_out_tongue:

quitz

#CMU Course Info 整理自一亩三分地

##08722 – Data Structurefor application programmers 这门课主要是开给EBIZ和MISM的，在MISM那边的课号是95772. 但是很多ECE, INI的同学，以及咱ME转CS帮都在上这门课。这门课只有半学期，一共6个credits，相当于1.5学分。内容非常基础，但是我觉得帮助挺大的，对于非CS科班出身想转CS的同学非常建议上一下， 基础越弱收获越大，要是基础比较硬的话就不用上了。LZ上的其它CS的课几乎都是各种牛校的PHD出身，这门课的老师好像都没有PHD学位，肯定没法去上15的课，但是讲课挺用心，讲的也很清楚。讲课这东西真的不是老师自己越牛就讲的越好。尤其数据结构这种比较基础的内容。这门课从最简单的内容讲起，包括array, arraylist, linked list, stack, queue,sorting(bubble, selection, insertion, merge, quick, heap), hashTable, hashMap,hashSet, BST, TreeMap, TreeSet, Huffman coding, Heap. 每周一次quiz, lab, homework。讲的时候内容都围绕Java Collection 来讲，还涉及与collection有关的comparator, iterator 等内容。这门课完全就是针对面试的，作业要求先手写代码（虽然大部分时候都是先ECLIPSE敲好再抄到纸上的）。

6次homework，前面的非常简单，后面稍微麻烦一点，难度都不大，就是让你去熟悉这些数据结构能自己implement，也能用JAVA COLLECTION。

1. 自己implement 一个 arraylist 实现各种要求
2. Queue, stack 的implement和应用

jez

GDB Command Cheatsheet

Summary of GDB commands for x86-64 Systems

Reformated from http://csapp.cs.cmu.edu/3e/docs/gdbnotes-x86-64.txt

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