# File lib/taps/chunksize.rb, line 37
  def calc_new_chunksize
    new_chunksize = if retries > 0
      chunksize
    elsif diff > 3.0
      (chunksize / 3).ceil
    elsif diff > 1.1
      chunksize - 100
    elsif diff < 0.8
      chunksize * 2
    else
      chunksize + 100
    end
    new_chunksize = 1 if new_chunksize < 1
    new_chunksize
  end