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Reviews like yours are increasing my interested towards Rust. Apparently the tools and ecosystem are great, build on solid concepts and foundation.

by shark1 1y ago

baq 1y ago
Rust has 3 major issues: - compile times - compile times - long compile times It isn't that big of a deal in small projects, but if you pull dependencies or have a lot of code you need to think about compilation units upfront.
- winter_blue 1y ago
  How is Rust in terms of incremental compile time? Is incrementally recompiling on file in a large project quick? Hopefully link times aren't that bad. One thing I like about the JVM is hot code reloading. Most of the time, changes inside a method/function takes effect immediately with hot code reloading.
  - chiffaa 1y ago
    Link times are the worst part but solveable with mold[1]/sold. Incremental compilations are usually an order of magnitude (or even two) faster than clean compiles but tbh that can still feel slow. Helped by using something like sccache[2] or even cranelift[3] when debugging. Still not as fast as having a hot-reloadable language but it gets you to a relatively pleasant speed still IME [1] https://github.com/rui314/mold https://github.com/rui314/mold [2] https://github.com/mozilla/sccache https://github.com/mozilla/sccache [3] https://github.com/rust-lang/rustc_codegen_cranelift https://github.com/rust-lang/rustc_codegen_cranelift
    - mmastrac 1y ago
      I've never been successful in getting sccache to really speed up projects, but then again only release builds have _really_ been impossible for me, and that's only when I was working on Deno which was absolutely massive.
      - chiffaa 1y ago
        sccache sped up my clean compiles by 2x on some projects, but it's a very YMMV solution most of the time
  - mmastrac 1y ago
    We had issues with long compile times at deno. Release builds were brutal, debug builds were OK as long as they were incremental. It was likely one of the largest open-source rust applications, but we were still quite productive. Most likely you'll have years before it's an issue and there are mitigations.

Reviews like yours are increasing my interested towards Rust. Apparently the tools and ecosystem are great, build on solid concepts and foundation.

by shark1 1y ago

Reviews like yours are increasing my interested towards Rust. Apparently the tools and ecosystem are great, build on solid concepts and foundation.

baq 1y ago

Rust has 3 major issues: - compile times - compile times - long compile times It isn't that big of a deal in small projects, but if you pull dependencies or have a lot of code you need to think about compilation units upfront.

winter_blue 1y ago
How is Rust in terms of incremental compile time? Is incrementally recompiling on file in a large project quick? Hopefully link times aren't that bad. One thing I like about the JVM is hot code reloading. Most of the time, changes inside a method/function takes effect immediately with hot code reloading.
- chiffaa 1y ago
  Link times are the worst part but solveable with mold[1]/sold. Incremental compilations are usually an order of magnitude (or even two) faster than clean compiles but tbh that can still feel slow. Helped by using something like sccache[2] or even cranelift[3] when debugging. Still not as fast as having a hot-reloadable language but it gets you to a relatively pleasant speed still IME [1] https://github.com/rui314/mold https://github.com/rui314/mold [2] https://github.com/mozilla/sccache https://github.com/mozilla/sccache [3] https://github.com/rust-lang/rustc_codegen_cranelift https://github.com/rust-lang/rustc_codegen_cranelift
  - mmastrac 1y ago
    I've never been successful in getting sccache to really speed up projects, but then again only release builds have _really_ been impossible for me, and that's only when I was working on Deno which was absolutely massive.
    - chiffaa 1y ago
      sccache sped up my clean compiles by 2x on some projects, but it's a very YMMV solution most of the time
- mmastrac 1y ago
  We had issues with long compile times at deno. Release builds were brutal, debug builds were OK as long as they were incremental. It was likely one of the largest open-source rust applications, but we were still quite productive. Most likely you'll have years before it's an issue and there are mitigations.