Joy of Think

Link: http://www.ruby-forum.com/topic/73148

Here is a very useful document about net::http performance. It introduces a idea that small buffer used in rbuf_fill causes interior performance of net/http. And he also introduce a workaround. The general idea is override the default behavior. Here are code:

class OverrideInternetMessageIO < Net::InternetMessageIO
  def rbuf_fill
    timeout(@read_timeout) {
      @rbuf << @socket.sysread(65536)
    }
  end
end

class NewHTTP < Net::HTTP
  def NewHTTP.socket_type
     OverrideInternetMessageIO
  end
end