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#!/usr/bin/env ruby
#$: << File.expand_path('../../lib', __FILE__)
require 'concurrent/atomics'
require 'benchmark'
require 'rbconfig'
THREADS = 1
TESTS = 10_000_000
def atomic_test(clazz, opts = {})
threads = opts.fetch(:threads, 5)
tests = opts.fetch(:tests, 100)
num = clazz.new
latch = Concurrent::CountDownLatch.new(threads)
print "Testing with #{clazz}...\n"
Benchmark.bmbm do |bm|
bm.report do
threads.times do |i|
Thread.new do
tests.times{ num.up }
latch.count_down
end
end
latch.wait
end
end
end
puts "Testing with #{RbConfig::CONFIG['ruby_install_name']} #{RUBY_VERSION}"
atomic_test(Concurrent::MutexAtomicFixnum, threads: THREADS, tests: TESTS)
if defined? Concurrent::CAtomicFixnum
atomic_test(Concurrent::CAtomicFixnum, threads: THREADS, tests: TESTS)
elsif RUBY_PLATFORM == 'java'
atomic_test(Concurrent::JavaAtomicFixnum, threads: THREADS, tests: TESTS)
end
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