gistfile1.txt

require "inline"

class Time
  inline(:C) do |builder|
    # c_singleton creates class method
    builder.c_singleton "long epoch_sec() { return time(NULL); }"
  end
end

require 'benchmark'
# Class method, native C - fast
puts Benchmark.measure {
  1_000_000.times.each do
    Time.epoch_sec
  end
}

# Ruby - sexy, not fast
puts Benchmark.measure {
  1_000_000.times.each do
    Time.now.to_i
  end
}