benchmarks/speed.rb
#!/usr/bin/env ruby -Ku
# encoding: utf-8
# benchmark speed of relation operations
$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
require 'rbench'
require 'axiom'
include Axiom
TIMES = 5_000
header = Relation::Header.new([[:id, Integer], [:name, String]])
array = (1..100).map { |n| Tuple.new(header, [n, 'Dan Kubb']) }
relation = Relation.new(header, array)
join = Relation.new([[:id, Integer], [:age, Integer]], [[1, 35]])
product = Relation.new([[:age, Integer]], [[35]])
sorted = relation.sort_by { |r| [r.id, r.name] }
RBench.run(TIMES) do
column :ruby, title: 'Ruby'
column :axiom, title: 'Axiom'
column :diff, title: 'Diff', compare: [:ruby, :axiom]
report 'each' do
ruby { array.each {} }
axiom { relation.each {} }
end
report 'projection' do
ruby { array.map { |tuple| [tuple[:id]] }.each {} }
axiom { relation.project([:id]).each {} }
end
report 'removal' do
ruby { array.map { |tuple| [tuple[:id]] }.each {} }
axiom { relation.remove([:name]).each {} }
end
report 'restriction' do
ruby { array.select { |tuple| tuple[:id] >= 1 }.each {} }
axiom { relation.restrict { |r| r.id.gte(1) }.each {} }
end
report 'join' do
axiom { relation.join(join).each {} }
end
report 'product' do
ruby { array.product(array).each {} }
axiom { relation.product(product).each {} }
end
report 'intersection' do
ruby { (array & array).each {} }
axiom { relation.intersect(relation).each {} }
end
report 'union' do
ruby { (array | array).each {} }
axiom { relation.union(relation).each {} }
end
report 'difference' do
ruby { (array - array).each {} }
axiom { relation.difference(relation).each {} }
end
report 'sort_by' do
ruby { array.sort_by { |tuple| [-tuple[:id], tuple[:name]] }.each {} }
axiom { relation.sort_by { |r| [r.id.desc, r.name] }.each {} }
end
report 'take' do
ruby { array.take(1).each {} }
axiom { sorted.take(1).each {} }
end
report 'drop' do
ruby { array.drop(1).each {} }
axiom { sorted.drop(1).each {} }
end
report 'first' do
ruby { array.first(1).each {} }
axiom { sorted.first(1).each {} }
end
report 'last' do
ruby { array.last(1).each {} }
axiom { sorted.last(1).each {} }
end
report 'reverse' do
ruby { array.reverse.each {} }
axiom { sorted.reverse.each {} }
end
end