solos

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

solos

#!/usr/bin/env python

"""
urlnorm.py - URL normalisation routines

urlnorm normalises a URL by;
  * lowercasing the scheme and hostname
  * taking out default port if present (e.g., http://www.foo.com:80/)
  * collapsing the path (./, ../, etc)
  * removing the last character in the hostname if it is '.'

solos

// requires
var utils = require('utils');
var casper = require('casper').create()
var casper = require('casper').create({
    verbose: true,
    logLevel: "debug"
});

// setup globals 
var email = casper.cli.options['email'] || 'REPLACE THIS EMAIL';

solos

from selenium import webdriver
from selenium.common.exceptions import TimeoutException
import selenium.webdriver.support.wait
selenium.webdriver.support.wait.POLL_FREQUENCY = 0.05

import re
import random
import collections

class AdwordsAutomater(object):

solos

    #!/usr/bin/env python
     
    """
       A pure python ping implementation using raw socket.
       
       
       Note that ICMP messages can only be sent from processes running as root.
       
       
       Derived from ping.c distributed in Linux's netkit. That code is

solos

body {
  font-family: Helvetica, arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  padding-top: 10px;
  padding-bottom: 10px;
  background-color: white;
  padding: 30px; }

body > *:first-child {

solos

"""
test commit creation with pygit2

To see the result:
rm -rf foo && python test_cc.py  && cd foo/ && git log  --graph --oneline --date-order --decorate --color --all && git status && cd ..

"""
import os
import sys
import pygit2

solos

import os
import re
import socket
import struct

def dns_resolve(host, dnsserver):
    assert isinstance(host, basestring) and isinstance(dnsserver, basestring)
    index = os.urandom(2)
    hoststr = ''.join(chr(len(x))+x for x in host.split('.'))
    data = '%s\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00%s\x00\x00\x01\x00\x01' % (index, hoststr)

solos

"""SSL client/server certificates verification for `urllib2`.

It works on Python 2.6, 2.7, 3.1, 3.2
It also works on Python 2.4, 2.5 if `ssl` is installed (``pip install ssl``)

Example::

   >>> import urllib2, urllib2_ssl
   >>> opener = urllib2.build_opener(urllib2_ssl.HTTPSHandler(
   ...     key_file='clientkey.pem',

solos

Based on installing Ubuntu 10.04 (lucid) and cloning the live environment (calling local environment dev.jsbin.com)

Add core packages:

sudo apt-get install libpcre3-dev build-essential libssl-dev
sudo apt-get install git-core
sudo su -
mkdir pkgs && cd pkgs
wget http://nginx.org/download/nginx-1.0.0.tar.gz