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26 lines
577 B
Ruby
26 lines
577 B
Ruby
# This simple fact is what makes threads so powerful, and also what makes them
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# difficult to work with. I've already given you an idea of why threads are
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# good; here's a simple program to illustrate their difficulty.
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shared_array = Array.new
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10.times.map do
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Thread.new do
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1000.times do
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shared_array << nil
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end
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end
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end.each(&:join)
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# Here you can see that we have 10 * 10000 elements in array
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puts shared_array.size
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# Note that different ruby can show different result
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# GIL exist only in MRI ruby
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# $ ruby => 10000
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# $ jruby => 7521
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# $ rbx => 8541
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