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BitOfUniverse/benchmark_block_passing.rb

Created March 8, 2018 14:45
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Ruby benchmark [2.4 vs 2.5]: Lazy Proc allocation for block parameters
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benchmark_block_passing.rb
require 'benchmark'
def with_block(&block); end
Benchmark.bmbm(10){|x|
x.report("with_block") { 1_000_000.times{ with_block{} } }
}
# Using /Users/alexey/.rvm/gems/ruby-2.4.2
# ➜ ruby ruby benchmark_ruby_block_passing.rb
# user system total real
# with_block 0.550000 0.000000 0.550000 ( 0.553924)
# Using /Users/alexey/.rvm/gems/ruby-2.5.0
# user system total real
# with_block 0.083184 0.000373 0.083557 ( 0.083838)
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