useless ruby_gnuplot http://touhou.ru/upload/2ac740fbe9b92f4dd3e7799619abd79f.png

g.rb

#!/usr/bin/env ruby

require 'gnuplot'
require 'ostruct'

def read file
  times = []
  File.open(file).each do |line|
    _,a,_ = line.split(' ')
    times << Float(a)/1000000
  end
  return [(1..times.size).to_a, times]
end

tests = [
  { :filename => "assets_before_deleting_all.log",
    :desc => "14:40 - 15:25 without deleting" },
  { :filename => "assets_after_first_deleting_test_all.log",
    :desc => "15:30 - 15:50, deleting 150/30 assets/seconds" },
  { :filename => "assets_after_second_deleting_test_all.log",
    :desc => "15:50 - 16:30, deleting 500/30 assets/seconds" },
  { :filename => "assets_after_third_deleting_test_all.log",
    :desc => "16:30 - 17:15, deleting 500/30 assets/seconds" }
]

Gnuplot.open do |gp|
  Gnuplot::Plot.new(gp) do |plot|
    plot.xlabel "Asset number"
    plot.ylabel "Time from first packet to flush, s"
    plot.terminal "png size 1000,800"
    plot.output File.expand_path "../results.png", __FILE__
    plot.data = tests.map do |t|
      Gnuplot::DataSet.new(read t[:filename]) do |ds|
        ds.title = t[:desc]
        ds.with = "lines"
      end
    end
  end
end