Re:Reducing Rust Incremental Compilation Times on macOS
by nindalf on Sunday April 18, 2021 @10:43AM
(#26852913)
Compile times in rustc have been steadily improving with time, as shown here - https://arewefastyet.rs.
Every release doesn't make every workload faster, but over a long time horizon, the effect is clear. Rust 1.34 was released in April 2019 and since then many crates have become 33-50% faster to compile, depending on the hardware and the compiler mode (clean/incremental, check/debug/release).
Interestingly, the speedup mentioned in OP won't show up in these charts because that's a change on macOS and these benchmarks were recorded on Linux.
What is expected to be a gamechanger is the release of cranelift in 2021 or 2022. It's an alternate debug backend that promises much faster debug builds.
Every release doesn't make every workload faster, but over a long time horizon, the effect is clear. Rust 1.34 was released in April 2019 and since then many crates have become 33-50% faster to compile, depending on the hardware and the compiler mode (clean/incremental, check/debug/release).
Interestingly, the speedup mentioned in OP won't show up in these charts because that's a change on macOS and these benchmarks were recorded on Linux.
What is expected to be a gamechanger is the release of cranelift in 2021 or 2022. It's an alternate debug backend that promises much faster debug builds.