addressable.rb

require "rubygems"

memory_usage = `ps -o rss= -p #{Process.pid}`.to_i # in kilobytes 
puts memory_usage

# $ ruby mem.rb 
# 8864



require "rubygems"
require "uri"

memory_usage = `ps -o rss= -p #{Process.pid}`.to_i # in kilobytes 
puts memory_usage

# $ ruby mem.rb 
# 9332




require "rubygems"
require "addressable/uri"

memory_usage = `ps -o rss= -p #{Process.pid}`.to_i # in kilobytes 
puts memory_usage

# $ ruby mem.rb 
# 13548


require "rubygems"
require "active_support"

memory_usage = `ps -o rss= -p #{Process.pid}`.to_i # in kilobytes 
puts memory_usage

# $ ruby mem.rb 
# 10668