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# Benchmark for compare Kernel#proc vs block argument (and vs using yield)
require 'benchmark'
def receiver
yield
end
def send_using_proc
receiver &proc if block_given?
end
def send_block_arg(&block)
receiver &block if block_given?
end
def send_using_yield
receiver(&proc { yield }) if block_given?
end
Benchmark.bm do |bm|
bm.report("use proc") { 1000000.times { send_using_proc { true } } }
bm.report("block arg") { 1000000.times { send_block_arg { true } } }
bm.report("use yield") { 1000000.times { send_using_yield { true } } }
end
# ******************** result ********************
#
# user system total real
# use proc 0.670000 0.000000 0.670000 ( 0.706581)
# block arg 0.690000 0.010000 0.700000 ( 0.712470)
# use yield 1.170000 0.000000 1.170000 ( 1.234635)
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