vincentchu

class Matrix
  
  IndexOverflow = Class.new(StandardError)
  
  attr_reader :dims, :nrows, :ncols
  
  def initialize(mm, nn)
    @dims  = [mm, nn]
    @nrows = mm
    @ncols = nn

vincentchu

require 'rubygems'
require 'sinatra/base'
require 'eventmachine'
require 'logger'

$logger = Logger.new(File.join(File.dirname(__FILE__), "development.log"))

module TestEM
  def self.start
    if defined?(PhusionPassenger)

vincentchu

                          (`·.               )\                                                                                   )`·.                                          )`·.           
                            )  `·.   .·´( .·´  (     (`·.                    )`·._.·´(        )`·.                   /(      .·´    (                              /(      .·´    (           
                    .·´( .·´:..::(,(::--  ' '\:·´       \::`·._)`·.     )\.·´::...  .::)   .·´   ./           )\      )  `·._):::.    )                    )\      )  `·._):::.    )         
                    );; :--  ' '             _\   .·´(   )::. ..:::).·´;· --  ´ ´\::.`·.(::...:('       )\ .·´ .:`·.(:;;  --  ' '\:. :(.·´)    )\      )\ .·´ .:`·.(:;;  --  ' '\:. :(.·´)    )\ 
                .·´/\                ,..:´:::'/   ):..\(;;::--  ´ ´               '\:::::::...::)   .·´  (,): --  ' '              \....:::`·.(  ( .·´  (,): --  ' '              \....:::`·.(  (
                )/:::'\...:/I       I::::::::/  '(::...:/\     

vincentchu

begin
  raise "THIS IS WEIRD?"
rescue ex
  puts "EX = #{ex.message}"
end

# => undefined local variable or method `ex' for main:Object (NameError)

vincentchu

#!/usr/bin/ruby 


binwidth = ARGV[0].to_f
filename = ARGV[1]
rand_file_name = "rand_file-#{(rand*1000000).to_i}.data"

nums = File.open(filename, "r") {|f| f.readlines}.collect {|n| n.to_f }
binned_data = {}
nums.each do |n|

vincentchu

require 'rubygems'
require 'redis'
require 'redis/distributed'

redis = Redis::Distributed.new(['redis://localhost:6379', 'redis://localhost:6380'])

(1..10_000).each do |i|
  
  key = "rand_#{rand}"
  val = rand(1000)

vincentchu

[false, true].each do |reseed_rand|

  puts "*" * 100
  puts "Force reseed of the random number generator? #{reseed_rand}"
  2.times {
    fork {
      srand if reseed_rand
      puts sprintf("   Process ID: %5d, child of %5d: 3 Randoms: %.5f, %.5f, %.5f", Process.pid, Process.ppid, rand, rand, rand)
    }  
  } 

vincentchu

--------------- objects --------------- ------ pages ------ ----- memory -----
 load-in  swap-out  swapped   delta      used     delta      used     delta    
 28       0         3742556   -43       10977293 -117      3.45G    +101.54K  
 28       0         3742517   -39       10977207 -86       3.45G    +56.30K   
 37       0         3742473   -44       10977107 -100      3.45G    +65.12K   
 29       0         3742433   -40       10976982 -125      3.45G    +116.73K  
 31       0         3742391   -42       10976850 -132      3.45G    +78.88K   
 30       0         3742351   -40       10976779 -71       3.45G    +50.25K   
 29       0         3742315   -36       10976673 -106      3.45G    +426.68K  
 30       0         3742271   -44       10976552 -121      3.45G    +183.50K  

vincentchu

daemonize yes
pidfile /var/run/redis.pid
port 6379
timeout 30
loglevel notice
logfile /var/log/redis/redis-server.log
databases 16

################################ SNAPSHOTTING  #################################
save 300  1000

vincentchu

require 'rubygems'
require 'redis'

def random_redis
  100.times do 
    rand_key = "key_#{rand(100)}"
    rand_val = rand
    
    if (rand_val < 0.33)