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perf: Call large munmap's in background thread #22329

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Merged
merged 3 commits into from
Apr 17, 2025
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@orlp orlp commented Apr 17, 2025

This was actually a single-threaded bottleneck that took up as much of 20% of very fast queries on large files.

@orlp orlp requested review from ritchie46 and c-peters as code owners April 17, 2025 14:37
@github-actions github-actions bot added performance Performance issues or improvements python Related to Python Polars rust Related to Rust Polars labels Apr 17, 2025
@ritchie46 ritchie46 merged commit ece6e63 into pola-rs:main Apr 17, 2025
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