Irvin Lim irvinlim

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

Jekyll & Liquid Cheatsheet

A list of the most common functionalities in Jekyll (Liquid). You can use Jekyll with GitHub Pages, just make sure you are using the proper version.

Running

Running a local server for testing purposes:

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

"Scar Tissues Make Relationships Wear Out"

04/26/2103. From a lecture by Professor John Ousterhout at Stanford, class CS142.

This is my most touchy-feely thought for the weekend. Here’s the basic idea: It’s really hard to build relationships that last for a long time. If you haven’t discovered this, you will discover this sooner or later. And it's hard both for personal relationships and for business relationships. And to me, it's pretty amazing that two people can stay married for 25 years without killing each other.

[Laughter]

> But honestly, most professional relationships don't last anywhere near that long. The best bands always seem to break up after 2 or 3 years. And business partnerships fall apart, and there's all these problems in these relationships that just don't last. So, why is that? Well, in my view, it’s relationships don't fail because there some single catastrophic event to destroy them, although often there is a single catastrophic event around the the end of the relation

	#!/bin/bash
	# virtualenv-auto-activate.sh
	#
	# Installation:
	# Add this line to your .bashrc or .bash-profile:
	#
	# source /path/to/virtualenv-auto-activate.sh
	#
	# Go to your project folder, run "virtualenv .venv", so your project folder
	# has a .venv folder at the top level, next to your version control directory.

	// HTTP forward proxy server that can also proxy HTTPS requests
	// using the CONNECT method

	// requires https://github.com/nodejitsu/node-http-proxy

	var httpProxy = require('http-proxy'),
	url = require('url'),
	net = require('net'),
	http = require('http');

	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

	loglevel.default = "DEBUG"
	rdeck.base = "/var/lib/rundeck"
	rss.enabled = true


	dataSource {
	dbCreate = "update"
	url = "jdbc:h2:file:/var/lib/rundeck/data/rundeckdb;MVCC=true"
	}

	#include <stdlib.h>
	#include <stdio.h>
	#include <string.h>
	#include <signal.h>

	/* compile with gcc -pthread lockwait.c */

	pthread_cond_t cv;
	pthread_mutex_t lock;