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Since a library is mentioned, it is possible that the Ruby library was particularly inefficient compared to Crystal. Crystal is definitely faster than Ruby, but

by pkd 3y ago

Since a library is mentioned, it is possible that the Ruby library was particularly inefficient compared to Crystal. Crystal is definitely faster than Ruby, but I expect differences to diminish in IO-bound operations (which sitemap generation sounds like it would be).

npn 3y ago
Crystal supports directly interacting with the IO streams, so even if it is IO-bound it still can be a lot faster.
- pkd 3y ago
  What does Crystal's IO stream support provide that Ruby's does not? Both expose very similar IO stream interfaces from my experience.