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Why is the Rust compiler so slow?

(sharnoff.io)
302 points Bogdanp | 1 comments | 26 Jun 25 19:29 UTC | HN request time: 0.284s | source
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kenoath69 ◴[26 Jun 25 20:49 UTC] No.44391211[source]▶
Where is Cranelift mentioned

My 2c on this is nearly ditching rust for game development due to the compile times, in digging it turned out that LLVM is very slow regardless of opt level. Indeed it's what the Jai devs have been saying.

So Cranelift might be relevant for OP, I will shill it endlessly, took my game from 16 seconds to 4 seconds. Incredible work Cranelift team.

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1. BreakfastB0b ◴[26 Jun 25 23:35 UTC] No.44392493[source]▶
I participated in the most recent Bevy game jam and the community has a new tool that came out of Dioxus called subsecond which as the name suggests provides sub-second hot reloading of systems. It made prototyping very pleasant. Especially when iterating on UI.

https://github.com/TheBevyFlock/bevy_simple_subsecond_system