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Feature #10165 » benchmark_benchmark_realtime.rb

phiggins (Pete Higgins), 08/23/2014 08:58 PM

 
require 'benchmark'

def old_benchmark
r0 = Time.now
yield
Time.now - r0
end

def new_benchmark
r0 = Process.clock_gettime(Process::CLOCK_MONOTONIC)
yield
Process.clock_gettime(Process::CLOCK_MONOTONIC) - r0
end

n = (ARGV.first || 1_000_000).to_i

puts "#{n} iterations."

Benchmark.bmbm do |b|
b.report("old") { n.times { old_benchmark { nil } } }
b.report("new") { n.times { new_benchmark { nil } } }
end
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