perf: Improve Bitmap construction performance #15570
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ritchie46
requested review from
stinodego,
c-peters,
alexander-beedie,
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orlp
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performance
ritchie46
commented
Apr 10, 2024
| @@ -90,8 +91,7 @@ where | |||
| .zip(a3_chunks) | |||
| .map(|((a1, a2), a3)| op(a1, a2, a3)); | |||
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| let buffer = chunk_iter_to_vec(chunks.chain(std::iter::once(op(rem_a1, rem_a2, rem_a3)))); | |||
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Remove chains as they require extra branches on iteration.
| 2 => combine_validities_and(bitmaps.pop(), bitmaps.pop()), | ||
| 3 => combine_validities_and3(bitmaps.pop(), bitmaps.pop(), bitmaps.pop()), | ||
| _ => { | ||
| let mut iterators = bitmaps |
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Single pass/ allocation to combine bitmaps.
| @@ -11,10 +11,7 @@ fn fma_arr<T: NumericNative>( | |||
| c: &PrimitiveArray<T>, | |||
| ) -> PrimitiveArray<T> { | |||
| assert_eq!(a.len(), b.len()); | |||
| let validity = combine_validities_and( | |||
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This could trigger two allocations/passes.
CodSpeed Performance ReportMerging #15570 will not alter performanceComparing Summary
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