this post was submitted on 08 Apr 2024
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"Clean" Code, Horrible Performance in Rust (chrs.dev)
submitted 7 months ago by chrs@programming.dev to c/rust@programming.dev
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[–] bonus_crab@lemmy.world 5 points 7 months ago

For what its worth , the cache locality of Vec<Box> is terrible in general, i feel like if youre iterating over a large array of things and applying a polymorphic function you're making a mistake.

Cache locality isnt a problem when youre only accessing something once though.

So imo polymorphism has its place for non iterative-compute type work, ie web server handler functions and event driven systems.