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

robbyt

import boto

#type that you want to get pricing on
MY_TYPE = u'm1.small'

ec2 = boto.connect_ec2()
spots = ec2.get_spot_price_history(instance_type= MY_TYPE)

spot_prices = [i.price for i in spots]

ox

require 'sinatra'
require 'sinatra/namespace'
require 'mongoid'

ENV["RACK_ENV"] ||= "development"
Mongoid.load!("mongoid.yml")

class Note
  include Mongoid::Document
  field :body, type: String

jhalcrow

# Adapted from http://j2labs.tumblr.com/post/4262756632/speed-tests-for-json-and-cpickle-in-python

import time
import cPickle as pickle
import simplejson
import json
import cjson
import jsonlib
import ujson