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#!/usr/bin/env ruby
require 'benchmark'
def make_link(previous)
Fiber.new do
while message = previous.resume
Fiber.yield(message)
end
end
end
def run_benchmark(fibers, repeats, message = :hello)
chain = nil
time = Benchmark.realtime do
chain = Fiber.new do
while true
Fiber.yield(message)
end
end
(fibers - 1).times do
chain = make_link(chain)
end
end
puts "Creating #{fibers} fibers took #{time}..."
time = Benchmark.realtime do
repeats.times do
abort "invalid result" unless chain.resume == message
end
end
puts "Passing #{repeats} messages took #{time}..."
end
n = (ARGV[0] || 1000).to_i
m = (ARGV[1] || 1000).to_i
5.times do
run_benchmark(n, m)
end
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