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Paul Smith paulsmith

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@dahlia
dahlia / lisp.rb
Created September 2, 2010 07:52
30 minutes Lisp in Ruby
# 30 minutes Lisp in Ruby
# Hong Minhee <http://dahlia.kr/>
#
# This Lisp implementation does not provide a s-expression reader.
# Instead, it uses Ruby syntax like following code:
#
# [:def, :factorial,
# [:lambda, [:n],
# [:if, [:"=", :n, 1],
# 1,
@ericflo
ericflo / redis_social_graph.py
Created September 3, 2010 18:24
"""
I've been thinking lately about how perfect Redis would be for storing a
simple social graph. I posited that it would be relatively few lines of code,
and that it'd be clean code too. So here it is: a basic social graph built on Redis.
"""
class FriendGraph(object):
def __init__(self, ring):
self.ring = ring
@onyxfish
onyxfish / elections.chicagotribune.com.vcl
Created November 3, 2010 18:55
Elections Center Varnish Configuration File
backend app1 {
.host = "1.1.1.1";
.port = "80";
}
backend app2 {
.host = "2.2.2.2";
.port = "80";
}
@alex
alex / webapp.py
Created November 16, 2010 16:19
import traceback
class WebApp(object):
def __init__(self, obj):
self.obj = obj
def __call__(self, environ, start_response):
try:
path = filter(bool, environ["PATH_INFO"].split("/"))
@wadey
wadey / index.html
Created December 3, 2010 22:06
SimpleGeo Advanced getLocation Example
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script src="http://cdn.simplegeo.com/js/1.2/simplegeo.context.jq.min.js"></script>
<script type="text/javascript" src="http://github.com/simplegeo/polymaps/raw/v2.4.0/polymaps.js"></script>
</head>
<body>
<script type="text/javascript">
@leegao
leegao / Rationale.md
Created July 9, 2011 02:30
JIT for dummies: JIT compiling RPN in python

If you don't care about the explanation, scroll down to find the code, it's 50 some odd lines and written by someone who doesn't know any better. You have been warned.

What it does

This is a very simple proof of concept jitting RPN calculator implemented in python. Basically, it takes the source code, tokenizes it via whitespace, and asks itself one simple question: am I looking at a number or not?

First, let's talk about the underlying program flow. Pretend that you are a shoe connoisseur with a tiny desk. You may only have two individual shoes on that desk at any one time, but should you ever purchase a new one or get harassed by an unruly shoe salesman without realizing that you have the power to say no (or even maybe?), you can always sweep aside one of the two shoes on the desk (the one on the right, because you're a lefty and you feel that the left side is always superior) onto the messy floor, put the other shoe on the right hand side, and then place your newly acquired shoe in

@jamescasbon
jamescasbon / template.py
Created December 11, 2011 16:37
Pure python templates using with statement
"""
A really stupid python template language inspired by coffeekup, markaby.
Do not use this code, it will ruin your day. A byproduct of insomnia.
TL;DR
-----
This module defines a template language that allows us to do:
d = Doc()
@brianboyer
brianboyer / gist:1696819
Created January 29, 2012 02:21
Lion dev environment notes
@jboner
jboner / latency.txt
Last active December 26, 2024 09:26
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
@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: