# File lib/mongrel/handlers.rb, line 356
    def process(request, response)
      if rand(@sample_rate)+1 == @sample_rate
        @processors.sample(listener.workers.list.length)
        @headcount.sample(request.params.length)
        @reqsize.sample(request.body.length / 1024.0)
        @respsize.sample((response.body.length + response.header.out.length) / 1024.0)
      end
      @interreq.tick
    end