Enable Link-Time Optimization (LTO) and codegen-units = 1 #1413
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Hi!
It's an issue very similar to googlefonts/fontc#1359 about enabling LTO and
codegen-units = 1optimizations for the project. Motivation is also the same: more aggressive optimizations and smaller binary sizes. I found other benchmarks about LTO like #1171 and #1172 - also with positive results.I have made quick tests (AMD Ryzen 5900x, Fedora 41, Rust 1.85.1, the latest version of the project at the moment,
cargo build --releasecommand) - here are the results. I don't know which binaries are more or less important, so I report several binaries (that seems like the most important but I could be wrong here).codegen-units = 1+ ThinLTOcodegen-units = 1+ FatLTOI didn't post results for the
fuzz_*binaries since they are not important much from binary size perspective but enabling LTO for fuzzing purposes could help with performing faster fuzzing.Clean build times:
codegen-units = 1+ ThinLTO: 34scodegen-units = 1+ FatLTO: 42sThank you.
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