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by Max Zone.
Original Post: Writing your very own Ruby extension with C
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Ruby is an extremely powerful and flexible language, but Ruby is also slow. According to performance zealots, when you use Ruby, you have signed a pact with the devil where you agreed to trade off pure effeciency for simplicity. It's a bit more complex than that though, because 90% of the time, your ruby script will either be waiting for I/O, or executing API functions written in C.