Postfix のパフォーマンス確認のため,
以下のような script で大量に送信をしてみた.
#!/usr/bin/ruby require 'net/smtp' THREADS = 4 NUM = 5000 # 1 thread 当たりの送信件数 CONTENT = "a" * 4 * 1024 MAILSERVER = "postfix.example.com" TO = "[email protected]" threads = [] (1..THREADS).each do |i| threads << Thread.new do puts "start thread: #{1}" (1..NUM).each do |i| Net::SMTP.start(MAILSERVER, 25) { |smtp| smtp.send_mail("test mail #{i} to #{TO}.\n#{CONTENT}", "[email protected]", TO) } end end end threads.each do |i| i.join end