Memory size of a hash or other object?

Question

What\'s the best way to get the size of a given hash (or any object really) in bytes in Ruby 1.9.3?

The solution to \"Find number of bytes a particular Hash is using in

Answer 1

ObjectSpace.memsize_of does work in 1.9.3, documented or not:

puts RUBY_VERSION #=>1.9.3

require 'objspace'

p ObjectSpace.memsize_of("a"*23)    #=> 23 
p ObjectSpace.memsize_of("a"*24)    #=> 24 
p ObjectSpace.memsize_of("a".*1000) #=> 1000
h = {"a"=>1, "b"=>2}
p ObjectSpace.memsize_of(h)         #=> 116