avibryant

require 'stringio'
require 'base64'

def read_varint(io)
  value = index = 0
  begin
    byte = io.readchar
    value |= (byte & 0x7f) << (7 * index)
    index += 1
  end while (byte & 0x80).nonzero?

headius

~/projects/jrubies ➔ ls
jruby-0.5.2	jruby-0.8.1	jruby-0.9.1	jruby-0_3_0	jruby-1.0	jruby-1.1	jruby-1.1.4	jruby-1.3.0	jruby-1.5.0	jruby-1.5.4	jruby-1.6.0.RC2
jruby-0.5.3	jruby-0.8.2	jruby-0.9.8	jruby-0_3_1	jruby-1.0.1	jruby-1.1.1	jruby-1.1.5	jruby-1.3.1	jruby-1.5.1	jruby-1.5.5	jruby_0_2_0
jruby-0.7.0	jruby-0.8.3	jruby-0.9.9	jruby-0_5_0	jruby-1.0.2	jruby-1.1.2	jruby-1.1.6	jruby-1.4.0	jruby-1.5.2	jruby-1.5.6	jruby_0_2_1
jruby-0.8.0	jruby-0.9.0	jruby-0_2_4	jruby-0_5_1	jruby-1.0.3	jruby-1.1.3	jruby-1.2.0	jruby-1.4.1	jruby-1.5.3	jruby-1.6.0.RC1	jruby_0_2_2

~/projects/jrubies ➔ time java -jar jruby_0_2_0/jruby.jar -e "def fib(a); a < 2 ? a : fib(a - 1) + fib(a - 2); end; 10.times { fib(30) }"

real	0m52.106s
user	0m49.630s

headius

~/projects/jcd ➔ ab -n 1000 -d -S http://localhost:3000/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/

Benchmarking localhost (be patient)
Completed 100 requests
Completed 200 requests
Completed 300 requests
Completed 400 requests

headius

~/projects/jruby ➔ jruby memory_mapped.rb 
Reading and writing memory-mapped
  2.355000   0.000000   2.355000 (  2.299000)
  1.943000   0.000000   1.943000 (  1.942000)
  2.014000   0.000000   2.014000 (  2.014000)
  1.899000   0.000000   1.899000 (  1.899000)
  1.870000   0.000000   1.870000 (  1.870000)
Reading from disk
  2.982000   0.000000   2.982000 (  2.982000)
  3.031000   0.000000   3.031000 (  3.031000)

headius

~/projects/jruby ➔ ls lib/ruby/gems/1.8/gems/ | wc -l
     471

~/projects/jruby ➔ time jruby -rubygems -e 1

real	0m5.079s
user	0m7.375s
sys	0m0.393s

~/projects/jruby ➔ git stash pop --quiet

headius

#!/usr/bin/env ruby

=begin

INSTALL:

  curl http://github.com/defunkt/gist/raw/master/gist.rb > gist &&
  chmod 755 gist &&
  sudo mv gist /usr/local/bin/gist

headius

#!/bin/bash
#
# Provides a function that allows you to choose a JDK.  Just set the environment 
# variable JDKS_ROOT to the directory containing multiple versions of the JDK
# and the function will prompt you to select one.  JAVA_HOME and PATH will be cleaned
# up and set appropriately.

# Usage:
# Include in .profile or .bashrc or source at login to get 'pickjdk' command.
# 'pickjdk' alone to bring up a menu of installed JDKs on OS X. Select one.