logger_impact.rb

require 'benchmark'
require 'logger'
log = Logger.new(STDOUT)
log.level = Logger::DEBUG
n = ARGV[0].to_i
Benchmark.bm do |b|
  b.report "info level" do
    log.level = Logger::INFO
    n.times { a=1+1; log.debug(a) }
  end

  b.report "no log" do
    n.times { a=1+1 }
  end

end