this post was submitted on 26 Feb 2024
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Programming
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Can we stop pretending Rust doesn't take performance trade-offs? Of course if you compare it one to one its roughly the same, since it's compiled. But Optimizing memory for cache hits becomes a lot more difficult in Rust, to the point where you have to use unsafe. And unsafe Rust has more undefined behavior than C. In my opinion C is more safe than unsafe Rust.
If you want normal performance its a good Language, but once you need to Optimize memory, which is usually the bottleneck, You are out of luck.
Why is this?