Created
August 17, 2008 17:36
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require 'benchmark' | |
include Benchmark | |
class Weeble | |
attr_reader :name, :age, :salary, :language | |
def initialize(name, age, salary, language) | |
@name, @age, @salary, @language = name, age, salary, language | |
end | |
def sorter | |
[@age || 0, @salary || 0, @language || "", @name || ""] | |
end | |
end | |
weebles = [ | |
Weeble.new("Aaron", 24, 60_000, "perl"), | |
Weeble.new("Bob", 24, 60_000, "python"), | |
Weeble.new("Carl", 24, 80_000, "ruby"), | |
Weeble.new("David", 24, 80_000, "ruby"), | |
Weeble.new("Edward", 24, 90_000, "ruby"), | |
Weeble.new("Frank", 33, 60_000, "perl"), | |
Weeble.new("Greg", 33, 60_000, "python"), | |
Weeble.new("Hecor", 33, 80_000, "ruby"), | |
Weeble.new("Ivan", 33, 80_000, "ruby"), | |
Weeble.new("Josh", 33, 90_000, "ruby"), | |
Weeble.new("Kevin", 24, 60_000, "perl"), | |
Weeble.new("Lewis", 24, 60_000, "python"), | |
Weeble.new("Mike", 24, 80_000, "ruby"), | |
Weeble.new("Noah", 24, 80_000, "ruby"), | |
Weeble.new("Oscar", 24, 90_000, "ruby"), | |
Weeble.new("Paul", 33, 60_000, "perl"), | |
Weeble.new("Quentin", 33, 60_000, "python"), | |
Weeble.new("Ryan", 33, 80_000, "ruby"), | |
Weeble.new("Steve", 33, 80_000, "ruby"), | |
Weeble.new("Titus", 33, 90_000, "ruby"), | |
Weeble.new("Aaron", 24, 42_000, "perl"), | |
Weeble.new("Bob", 24, 42_000, "python"), | |
Weeble.new("Carl", 24, 42_000, "ruby"), | |
Weeble.new("David", 24, 42_000, "ruby"), | |
Weeble.new("Edward", 24, 42_000, "ruby"), | |
Weeble.new("Frank", 33, 42_000, "perl"), | |
Weeble.new("Greg", 33, 42_000, "python"), | |
Weeble.new("Hecor", 33, 42_000, "ruby"), | |
Weeble.new("Ivan", 33, 42_000, "ruby"), | |
Weeble.new("Josh", 33, 42_000, "ruby"), | |
Weeble.new("Kevin", 24, 42_000, "perl"), | |
Weeble.new("Lewis", 24, 42_000, "python"), | |
Weeble.new("Mike", 24, 42_000, "ruby"), | |
Weeble.new("Noah", 24, 42_000, "ruby"), | |
Weeble.new("Oscar", 24, 42_000, "ruby"), | |
Weeble.new("Paul", 33, 42_000, "perl"), | |
Weeble.new("Quentin", 33, 42_000, "python"), | |
Weeble.new("Ryan", 33, 42_000, "ruby"), | |
Weeble.new("Steve", 33, 42_000, "ruby"), | |
Weeble.new("Titus", 33, 42_000, "ruby"), | |
Weeble.new("Aaron", 27, 60_000, "perl"), | |
Weeble.new("Bob", 27, 60_000, "python"), | |
Weeble.new("Carl", 27, 80_000, "ruby"), | |
Weeble.new("David", 27, 80_000, "ruby"), | |
Weeble.new("Edward", 27, 90_000, "ruby"), | |
Weeble.new("Frank", 27, 60_000, "perl"), | |
Weeble.new("Greg", 21, 60_000, "python"), | |
Weeble.new("Hecor", 21, 80_000, "ruby"), | |
Weeble.new("Ivan", 21, 80_000, "ruby"), | |
Weeble.new("Josh", 21, 90_000, "ruby"), | |
Weeble.new("Kevin", 21, 60_000, "perl"), | |
Weeble.new("Lewis", 21, 60_000, "python"), | |
Weeble.new("Mike", 21, 80_000, "ruby"), | |
Weeble.new("Noah", 21, 80_000, "ruby"), | |
Weeble.new("Oscar", 27, 90_000, "ruby"), | |
Weeble.new("Paul", 27, 60_000, "perl"), | |
Weeble.new("Quentin", 27, 60_000, "python"), | |
Weeble.new("Ryan", 27, 80_000, "ruby"), | |
Weeble.new("Steve", 27, 80_000, "ruby"), | |
Weeble.new("Titus", 27, 90_000, "ruby") | |
] | |
sort_block = Proc.new do |a,b| | |
if 0 != (comp = ((a.age || 0) <=> (b.age || 0))) | |
comp | |
elsif 0 != (comp = ((a.salary || 0) <=> (b.salary || 0))) | |
comp | |
elsif 0 != (comp = ((a.language || "") <=> (b.language || ""))) | |
comp | |
else | |
((a.name || "") <=> (b.name || "")) | |
end | |
end | |
bm(16) do |t| | |
t.report("sort") { 10_000.times { weebles.sort { |a,b| a.sorter <=> b.sorter } } } | |
t.report("sort_by") { 10_000.times { weebles.sort_by { |w| w.sorter } } } | |
t.report("sort block") { 10_000.times { weebles.sort(&sort_block) } } | |
end | |
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