Gather throughput enhancements - #161
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pbower
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Aug 10, 2026
pbower
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- Index gathers match the array variant once for the whole column
- The gather's null bits skip the per-element bounds checks
- Index gathers prefetch the read a stride ahead
- A padded index gather nulls its sentinel positions in one pass
1. Index gathers match the array variant once for the whole column 2. The gather's null bits skip the per-element bounds checks 3. Index gathers prefetch the read a stride ahead 4. A padded index gather nulls its sentinel positions in one pass
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