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@eric
eric / require_tracking.rb
Created December 28, 2009 02:18
A simple tool to gather memory usage when files are required. More info at: http://bitmonkey.net/post/308322913
#
# Created by Eric Lindvall <eric@sevenscale.com>
#
# WHAT: Provides a simple overview of memory allocation occuring during a
# require.
#
# For a longer explanation, see my post at:
#
# http://bitmonkey.net/post/308322913/tracking-initial-memory-usage-by-file-in-ruby
#
@mrrooijen
mrrooijen / deploy.rb
Created May 16, 2011 18:12
Unicorn + Bluepill + Capistrano with RVM
$:.unshift(File.expand_path('./lib', ENV['rvm_path']))
require "rvm/capistrano"
set :application, "my_app"
set :repository, "git@trunksapp.com:myuser/myapp.git"
set :branch, "production"
set :rvm_ruby_string, "1.9.2"
set :deploy_to, "/var/applications/"
set :user, "username"
@dandorman
dandorman / fabrication_feature_pool_spec.rb
Created August 9, 2011 23:00
FactoryGirl vs. Fabrication
require 'spec_helper'
describe FeaturePool do
it "creates a new instance given valid attributes" do
Fabricate :feature_pool
end
it "is not valid without a name" do
Fabricate.build(:feature_pool, :name => "").should_not be_valid
end
@douglasjarquin
douglasjarquin / gist:2208690
Created March 26, 2012 18:58
Amazon RDS Performance Tuning Settings
rds-modify-db-parameter-group {param-group-name} \
--parameters="name=character_set_server, value=utf8, method=pending-reboot" \
--parameters="name=collation_server, value=utf8_general_ci, method=pending-reboot" \
--parameters="name=tmp_table_size, value={DBInstanceClassMemory/16}, method=pending-reboot" \
--parameters="name=max_heap_table_size, value={DBInstanceClassMemory/16}, method=pending-reboot" \
--parameters="name=query_cache_type, value=1, method=pending-reboot" \
--parameters="name=query_cache_size, value=131072, method=pending-reboot" \
--parameters="name=table_open_cache, value=2500, method=pending-reboot" \
--parameters="name=join_buffer_size, value={DBInstanceClassMemory/64}, method=pending-reboot" \
--parameters="name=thread_cache_size, value={DBInstanceClassMemory/12582880}, method=pending-reboot" \
@norman
norman / character_reference.rb
Last active September 9, 2021 20:48
HTML entities? We don't need no stinkin' HTML entities.
# coding: utf-8
#
# Encode any codepoint outside the ASCII printable range to an HTML character
# reference (https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_reference_overview).
def encode(string)
string.each_codepoint.inject("") do |buffer, cp|
cp = "&#x#{cp.to_s(16)};" unless cp >= 0x20 && cp <= 0x7E
buffer << cp
end
end
@bhenerey
bhenerey / ideal ops.md
Created May 23, 2012 19:40
ideal ops checklist

In a perfect world, where things are done well, not just quickly, I would expect to find the following when joining the company:

Documentation

  • Accurate / up-to-date systems architecture diagram

  • Accurate / up-to-date network diagram

  • Out-of-hours support plan

  • Incident management plan

@hellerbarde
hellerbarde / latency.markdown
Created May 31, 2012 13:16 — forked from jboner/latency.txt
Latency numbers every programmer should know

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

@n3bulous
n3bulous / sphinx.rb
Created July 20, 2012 18:56 — forked from twerth/sphinx.rb
Mac homebrew Sphinx 0.9.9 formula
require 'formula'
class Libstemmer < Formula
# upstream is constantly changing the tarball,
# so doing checksum verification here would require
# constant, rapid updates to this formula.
head 'http://snowball.tartarus.org/dist/libstemmer_c.tgz'
homepage 'http://snowball.tartarus.org/'
end
@josevalim
josevalim / 0_README.md
Created September 13, 2012 21:52
Sinatra like routes in Rails controllers

Sinatra like routes in Rails controllers

A proof of concept of having Sinatra like routes inside your controllers.

How to use

Since the router is gone, feel free to remove config/routes.rb. Then add the file below to lib/action_controller/inline_routes.rb inside your app.

@leifg
leifg / Vagrantfile
Last active November 12, 2023 08:31
Add a second disk to system using vagrant
file_to_disk = './tmp/large_disk.vdi'
Vagrant::Config.run do |config|
config.vm.box = 'base'
config.vm.customize ['createhd', '--filename', file_to_disk, '--size', 500 * 1024]
config.vm.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk]
end