tustvold opened a new pull request, #4575:
URL: https://github.com/apache/arrow-rs/pull/4575
# Which issue does this PR close?
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Closes #.
# Rationale for this change
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```
lexicographical_partition_ranges(u8) 2^10
time: [1.5420 µs 1.5426 µs 1.5432 µs]
change: [-81.810% -81.793% -81.778%] (p = 0.00 <
0.05)
Performance has improved.
Found 1 outliers among 100 measurements (1.00%)
1 (1.00%) high mild
lexicographical_partition_ranges(u8) 2^12
time: [2.3049 µs 2.3062 µs 2.3076 µs]
change: [-85.514% -85.454% -85.393%] (p = 0.00 <
0.05)
Performance has improved.
Found 4 outliers among 100 measurements (4.00%)
2 (2.00%) low mild
2 (2.00%) high mild
lexicographical_partition_ranges(u8) 2^10 with nulls
time: [2.3843 µs 2.3858 µs 2.3873 µs]
change: [-67.819% -67.794% -67.767%] (p = 0.00 <
0.05)
Performance has improved.
lexicographical_partition_ranges(u8) 2^12 with nulls
time: [3.2080 µs 3.2098 µs 3.2117 µs]
change: [-77.353% -77.335% -77.319%] (p = 0.00 <
0.05)
Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
7 (7.00%) high mild
1 (1.00%) high severe
lexicographical_partition_ranges(f64) 2^10
time: [3.2753 µs 3.2774 µs 3.2799 µs]
change: [-82.556% -82.542% -82.528%] (p = 0.00 <
0.05)
Performance has improved.
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
lexicographical_partition_ranges(low cardinality) 1024
time: [388.79 ns 389.09 ns 389.40 ns]
change: [-22.807% -22.726% -22.644%] (p = 0.00 <
0.05)
Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
3 (3.00%) low mild
3 (3.00%) high mild
1 (1.00%) high severe
```
# What changes are included in this PR?
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# Are there any user-facing changes?
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