cyb70289 commented on pull request #10651:
URL: https://github.com/apache/arrow/pull/10651#issuecomment-873736382
No performance difference on little endian machines.
Test result on intel xeon gold 5218.
```
$ archery benchmark diff --suite-filter="arrow-decimal-benchmark"
--cc=clang-10 --cxx=clang++-10
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Non-regressions: (10)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
benchmark baseline contender change %
counters
BinaryBitOp 400.157M items/sec 442.944M items/sec 10.693
{'run_name': 'BinaryBitOp', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 27844244}
BinaryMathOp256 56.424M items/sec 56.642M items/sec 0.386
{'run_name': 'BinaryMathOp256', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 3953034}
BinaryMathOp128 47.600M items/sec 47.646M items/sec 0.096
{'run_name': 'BinaryMathOp128', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 3334294}
BinaryMathOpAggregate 34.017M items/sec 34.044M items/sec 0.080
{'run_name': 'BinaryMathOpAggregate', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 2381211}
UnaryOp 404.202M items/sec 404.289M items/sec 0.022
{'run_name': 'UnaryOp', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 28295897}
Constants 265.843M items/sec 265.855M items/sec 0.004
{'run_name': 'Constants', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 93041786}
BinaryCompareOp 274.875M items/sec 273.927M items/sec -0.345
{'run_name': 'BinaryCompareOp', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 19223572}
ToString 14.519M items/sec 14.395M items/sec -0.849
{'run_name': 'ToString', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 1694273}
FromString 17.766M items/sec 17.538M items/sec -1.282
{'run_name': 'FromString', 'repetitions': 0, 'repetition_index': 0,
'threads': 1, 'iterations': 2074512}
BinaryCompareOpConstant 327.384M items/sec 314.514M items/sec -3.931
{'run_name': 'BinaryCompareOpConstant', 'repetitions': 0, 'repetition_index':
0, 'threads': 1, 'iterations': 22894103}
```
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