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# Copied from my benchmark_hell repo: github.com/sgonyea/benchmark_hell
require 'benchmark'
iters = 1000000
def do_explicit(&block)
var = "hello"
block.call(var)
end
def do_implicit
var = "hello"
yield(var)
end
puts 'explicit block vs implicit'
Benchmark.bmbm do |x|
x.report('explicit') do
iters.times.each do
do_explicit {|var|
var << "goodbye"
}
end
end
x.report('implicit') do
iters.times.each do
do_implicit {|var|
var << "goodbye"
}
end
end
end
=begin
rvm exec bash -c 'echo && echo $RUBY_VERSION && echo && ruby implicit_block-vs-explicit_block.rb'
jruby-1.5.6
explicit block vs implicit
Rehearsal --------------------------------------------
explicit 1.163000 0.000000 1.163000 ( 1.106000)
implicit 0.499000 0.000000 0.499000 ( 0.499000)
----------------------------------- total: 1.662000sec
user system total real
explicit 0.730000 0.000000 0.730000 ( 0.730000)
implicit 0.453000 0.000000 0.453000 ( 0.453000)
macruby-0.7.1
explicit block vs implicit
Rehearsal --------------------------------------------
explicit 5.070000 0.130000 5.200000 ( 3.546388)
implicit 3.140000 0.050000 3.190000 ( 2.255986)
----------------------------------- total: 8.390000sec
user system total real
explicit 5.340000 0.140000 5.480000 ( 3.774963)
implicit 3.170000 0.060000 3.230000 ( 2.279951)
rbx-head
explicit block vs implicit
Rehearsal --------------------------------------------
explicit 1.270136 0.006507 1.276643 ( 1.181588)
implicit 0.839831 0.002203 0.842034 ( 0.820849)
----------------------------------- total: 2.118677sec
user system total real
explicit 0.960593 0.001526 0.962119 ( 0.966404)
implicit 0.700361 0.001126 0.701487 ( 0.703591)
ruby-1.8.7-p330
explicit block vs implicit
Rehearsal --------------------------------------------
explicit 3.970000 0.000000 3.970000 ( 3.985157)
implicit 1.560000 0.000000 1.560000 ( 1.567599)
----------------------------------- total: 5.530000sec
user system total real
explicit 3.990000 0.010000 4.000000 ( 4.002637)
implicit 1.560000 0.000000 1.560000 ( 1.560901)
ruby-1.9.2-p136
explicit block vs implicit
Rehearsal --------------------------------------------
explicit 2.620000 0.010000 2.630000 ( 2.633762)
implicit 1.080000 0.000000 1.080000 ( 1.076809)
----------------------------------- total: 3.710000sec
user system total real
explicit 2.630000 0.010000 2.640000 ( 2.637658)
implicit 1.070000 0.000000 1.070000 ( 1.073589)
=end
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