21 lines
868 B
Markdown
21 lines
868 B
Markdown
# Performance Guide
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Tips for getting good performance from Fun programs and builds.
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## Build configuration
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- Use `-DCMAKE_BUILD_TYPE=Release` for production binaries.
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- Consider `FUN_DEBUG=OFF` to remove extra checks in hot paths.
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- `FUN_USE_MUSL=ON` can help with static/portable builds; measure performance for your use case.
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## Language-level tips
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- Prefer pre-sized arrays/maps when possible to reduce reallocations.
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- Avoid unnecessary string concatenations in loops; accumulate in arrays and `join`.
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- Push work to native ops where available (e.g., regex, JSON, math helpers).
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## Algorithmic choices
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- Choose appropriate data structures (arrays for ordered scans, maps for key lookups).
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- Cache repeated computations or lookups when safe.
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## Measuring
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- Create small, representative benchmarks.
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- Compare Debug vs. Release to ensure changes are meaningful.
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