Class: CompareCompressors::SizePlotter

Inherits:
Plotter
  • Object
show all
Defined in:
lib/compare_compressors/plotters/size_plotter.rb

Overview

Plot grouped compression results to gnuplot in 2D — just compression time or decompression time vs size.

Constant Summary collapse

DEFAULT_DECOMPRESSION =

plot compression by default

false

Constants inherited from Plotter

Plotter::DEFAULT_AUTOSCALE_FIX, Plotter::DEFAULT_LMARGIN, Plotter::DEFAULT_LOGSCALE_SIZE, Plotter::DEFAULT_OUTPUT, Plotter::DEFAULT_SHOW_LABELS, Plotter::DEFAULT_TERMINAL, Plotter::DEFAULT_TITLE, Plotter::DEFAULT_USE_CPU_TIME

Instance Attribute Summary collapse

Attributes inherited from Plotter

#autoscale_fix, #group_results, #io, #lmargin, #logscale_size, #output, #show_labels, #terminal, #title, #use_cpu_time

Instance Method Summary collapse

Methods inherited from Plotter

#plot

Constructor Details

#initialize(**options) ⇒ SizePlotter

Returns a new instance of SizePlotter.



11
12
13
14
15
16
17
18
19
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 11

def initialize(**options)
  @decompression = \
    if options.key?(:decompression)
      options.delete(:decompression)
    else
      DEFAULT_DECOMPRESSION
    end
  super(**options)
end

Instance Attribute Details

#decompression ⇒ Object (readonly)

Returns the value of attribute decompression.



21
22
23
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 21

def decompression
  @decompression
end

Instance Method Details

#column_names ⇒ Object 



44
45
46
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 44

def column_names
  [time_column_name, :mean_compressed_gibytes]
end

#plots ⇒ Object 



52
53
54
55
56
57
58
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 52

def plots
  if show_labels
    point_plots + point_label_plots
  else
    point_plots
  end
end

#point_label_plots ⇒ Object 



68
69
70
71
72
73
74
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 68

def point_label_plots
  compressor_names.map do |name|
    columns = column_numbers(column_names + [:compressor_level])
    "'$#{name}' using #{columns.join(':')}" \
    ' with labels left offset 0, character 0.5 notitle'
  end
end

#point_plots ⇒ Object 



60
61
62
63
64
65
66
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 60

def point_plots
  compressor_names.map do |name|
    "'$#{name}' using #{column_numbers.join(':')} with points" \
    " #{point_style(name)}" \
    " title '#{find_display_name(name)}'"
  end
end

#time_column_name ⇒ Object 



32
33
34
35
36
37
38
39
40
41
42
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 32

def time_column_name
  if decompression && use_cpu_time
    :mean_decompression_cpu_hours
  elsif decompression
    :mean_decompression_elapsed_hours
  elsif use_cpu_time
    :mean_compression_cpu_hours
  else
    :mean_compression_elapsed_hours
  end
end

#write_labels ⇒ Object 



23
24
25
26
27
28
29
30
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 23

def write_labels
  io.puts 'set ylabel "Compressed Size (GiB)"'
  if decompression
    io.puts "set xlabel 'Decompression Time #{time_unit}'"
  else
    io.puts "set xlabel 'Compression Time #{time_unit}'"
  end
end

#write_plots ⇒ Object 



48
49
50
 
# File 'lib/compare_compressors/plotters/size_plotter.rb', line 48

def write_plots
  io.puts "plot #{plots.join(", \\\n  ")}"
end