Benchmark Array vs. ThreadSafe::Array

array-bench.rb

require 'thread'
require 'thread_safe'
require 'benchmark'

core = []
ts = ThreadSafe::Array.new
mutex = Mutex.new

iterations = 5_000
threads = 1000

Benchmark.bm do |x|
  x.report('core') do
    threads.times.map do |i|
      Thread.new do
        iterations.times do
          mutex.lock
          core << i
          mutex.unlock
        end
      end
    end.each(&:join)
  end

  x.report('ts') do
    threads.times.map do |i|
      Thread.new do
        iterations.times do
          ts << i
        end
      end
    end.each(&:join)
  end
end