mapleFU commented on PR #40876:
URL: https://github.com/apache/arrow/pull/40876#issuecomment-2034229820

   New benchmark:
   
   ```
   BM_DecodeArrowBooleanPlain/DecodeArrowNonNull_Dense/65536        1334 ns     
    1240 ns       573521 bytes_per_second=6.15156G/s
   BM_DecodeArrowBooleanPlain/DecodeArrowWithNull_Dense/1024        4942 ns     
    4930 ns       141313 bytes_per_second=24.7629M/s
   BM_DecodeArrowBooleanPlain/DecodeArrowWithNull_Dense/4096       20088 ns     
   19279 ns        36750 bytes_per_second=25.3267M/s
   BM_DecodeArrowBooleanPlain/DecodeArrowWithNull_Dense/32768     204040 ns     
  202560 ns         3394 bytes_per_second=19.2844M/s
   BM_DecodeArrowBooleanPlain/DecodeArrowWithNull_Dense/65536     463732 ns     
  435178 ns         1626 bytes_per_second=17.9524M/s
   ```
   
   Would is 10-20% faster than previous impl


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