Parallel processing for ruby:

• Speeds up processing by %{number_of_cpus} X
• Protects data from destructive operations

Usage

data = something_big()

require 'parallel'

#runs in number_of_your_cpus
results = Parallel.map(data) do |chunk|
  expensive_computation chunk
end

#4 processes
results = Parallel.map(data, :in_processes=>4) do |chunk|
  expensive_computation chunk
end

#same with threads (no speedup through multiple cpus,
#but speedup for blocking operations)
results = Parallel.map(data, :in_threads=>4) do |chunk|
  blocking_computation chunk
end

Parallel.each(data){|chunk| ..same.. }

Go parallel !