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perf: build the native library with Typst's release profile - #57
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evolvedlight merged 1 commit intoOct 17, 2026
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Thin LTO and a single codegen unit, the settings Typst itself is released with. The Windows x64 typst_core.dll goes from 51.6 MB to 48.3 MB. Compile speed is unchanged within measurement noise; a full release build takes longer.
evolvedlight
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Oct 17, 2026
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This adds a
[profile.release]totypst_corewithlto = "thin"andcodegen-units = 1, the settings Typst's own workspace is released with.panicstays atunwind, becausecompilerelies oncatch_unwind.The point is a smaller library:
typst_core.dllSpeed: no measurable change. I ran each build six times, alternating between them, on a 30-page document. Median results for cold and warm PDF, PNG and SVG were within -8% to +4% of each other, which is inside the run-to-run noise on this machine.
Cost: a full release build took about 5 minutes locally, so CI pack builds get slower.
cargo test --releasepasses, and so do all 80 .NET tests against the library built with the new profile.