Class: Benchmark::IPS::Report

Inherits:
Object
  • Object
show all
Defined in:
lib/benchmark/ips/report.rb

Overview

Report contains benchmarking entries. Perform operations like add new entry, run comparison between entries.

Defined Under Namespace

Classes: Entry

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Report

Instantiate the Report.



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# File 'lib/benchmark/ips/report.rb', line 135

def initialize
  @entries = []
  @data = nil
end

Instance Attribute Details

#entries ⇒ Array<Report::Entry> (readonly)

Entry to represent each benchmarked code in Report.

Returns:



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# File 'lib/benchmark/ips/report.rb', line 132

def entries
  @entries
end

Instance Method Details

#add_entry(label, microseconds, iters, stats, measurement_cycle) ⇒ Report::Entry

Add entry to report.

Parameters:

  • label (String) —

    Entry label.

  • microseconds (Integer) —

    Measured time in microsecond.

  • iters (Integer) —

    Iterations.

  • stats (Object) —

    Statistical results.

  • measurement_cycle (Integer) —

    Number of cycles.

Returns:



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# File 'lib/benchmark/ips/report.rb', line 147

def add_entry label, microseconds, iters, stats, measurement_cycle
  entry = Entry.new(label, microseconds, iters, stats, measurement_cycle)
  @entries.delete_if { |e| e.label == label }
  @entries << entry
  entry
end

#data ⇒ Array<Hash<Symbol,String|Float|Integer>] Array of hashes

Entries data in array for generate json. Each entry is a hash, consists of:

name:   Entry#label
ips:    Entry#ips
stddev: Entry#ips_sd
microseconds: Entry#microseconds
iterations:   Entry#iterations
cycles:       Entry#measurement_cycles

Returns:

  • (Array<Hash<Symbol,String|Float|Integer>] Array of hashes) —

    Array<Hash<Symbol,String|Float|Integer>] Array of hashes



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# File 'lib/benchmark/ips/report.rb', line 163

def data
  @data ||= @entries.collect do |entry|
    {
      :name => entry.label,
      :central_tendency =>  entry.stats.central_tendency,
      :ips =>  entry.stats.central_tendency, # for backwards compatibility
      :error => entry.stats.error,
      :stddev => entry.stats.error, # for backwards compatibility
      :microseconds => entry.microseconds,
      :iterations => entry.iterations,
      :cycles => entry.measurement_cycle,
    }
  end
end

#generate_json(path) ⇒ Object

Generate json from Report#data to given path.

Parameters:

  • path (String) —

    path to generate json.



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# File 'lib/benchmark/ips/report.rb', line 185

def generate_json(path)
  require "json"
  if path.respond_to?(:write) # STDOUT
    path.write JSON.pretty_generate(data)
  else
    File.open path, "w" do |f|
      f.write JSON.pretty_generate(data)
    end
  end
end

#run_comparison(order) ⇒ Object

Run comparison of entries.



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# File 'lib/benchmark/ips/report.rb', line 179

def run_comparison(order)
  Benchmark.compare(*@entries, order: order)
end