mapleFU commented on PR #43832:
URL: https://github.com/apache/arrow/pull/43832#issuecomment-2321664648
On my amd 3800x:
without flag ARROW_USER_SIMD_LEVEL=NONE
```
BM_RowArray_Decode/"boolean"
226161 ns 226368 ns 3010
rows/sec=289.507M/s
BM_RowArray_Decode/"int8"
213483 ns 213692 ns 3251
rows/sec=306.68M/s
BM_RowArray_Decode/"int16"
216579 ns 216796 ns 3303
rows/sec=302.289M/s
BM_RowArray_Decode/"int32"
216269 ns 216471 ns 3369
rows/sec=302.742M/s
BM_RowArray_Decode/"int64"
222836 ns 223107 ns 3267
rows/sec=293.738M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:3
280235 ns 280491 ns 2543
rows/sec=233.644M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:5
385640 ns 386004 ns 1888
rows/sec=169.778M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:6
283350 ns 283581 ns 2481
rows/sec=231.098M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:7
275834 ns 276064 ns 2477
rows/sec=237.391M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:9
382956 ns 383228 ns 1797
rows/sec=171.008M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:16
360731 ns 360978 ns 2061
rows/sec=181.549M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:42
405461 ns 405901 ns 1729
rows/sec=161.456M/s
BM_RowArray_DecodeBinary/max_length:32
870678 ns 871002 ns 801
rows/sec=75.2409M/s
BM_RowArray_DecodeBinary/max_length:64
1225297 ns 1225776 ns 552
rows/sec=53.4641M/s
BM_RowArray_DecodeBinary/max_length:128
1543498 ns 1544551 ns 454
rows/sec=42.4298M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:0
241292 ns 241565 ns 2919 rows/sec=271.293M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:1
222509 ns 222788 ns 3062 rows/sec=294.159M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:2
453397 ns 453855 ns 1587 rows/sec=144.396M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:0
320415 ns 320641 ns 2157 rows/sec=204.387M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:1
311626 ns 311862 ns 2221 rows/sec=210.141M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:2
865312 ns 865693 ns 801 rows/sec=75.7023M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:3
966808 ns 967218 ns 736 rows/sec=67.7562M/s
```
With ARROW_USER_SIMD_LEVEL=NONE flag:
```
BM_RowArray_Decode/"boolean"
309518 ns 309748 ns 2336
rows/sec=211.575M/s
BM_RowArray_Decode/"int8"
219132 ns 219335 ns 3205
rows/sec=298.79M/s
BM_RowArray_Decode/"int16"
206815 ns 207000 ns 3375
rows/sec=316.594M/s
BM_RowArray_Decode/"int32"
211850 ns 212051 ns 3261
rows/sec=309.053M/s
BM_RowArray_Decode/"int64"
209969 ns 210150 ns 3284
rows/sec=311.849M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:3
307361 ns 307555 ns 2192
rows/sec=213.084M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:5
317631 ns 317849 ns 2211
rows/sec=206.183M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:6
314159 ns 314372 ns 2218
rows/sec=208.463M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:7
313868 ns 314084 ns 2162
rows/sec=208.655M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:9
373098 ns 373331 ns 1839
rows/sec=175.541M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:16
371984 ns 372230 ns 1830
rows/sec=176.061M/s
BM_RowArray_DecodeFixedSizeBinary/fixed_size:42
481453 ns 481768 ns 1440
rows/sec=136.03M/s
BM_RowArray_DecodeBinary/max_length:32
1311100 ns 1311531 ns 534
rows/sec=49.9683M/s
BM_RowArray_DecodeBinary/max_length:64
1788057 ns 1788600 ns 389
rows/sec=36.6404M/s
BM_RowArray_DecodeBinary/max_length:128
2120766 ns 2121693 ns 308
rows/sec=30.8881M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:0
330122 ns 330365 ns 2142 rows/sec=198.372M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:1
215677 ns 215314 ns 3202 rows/sec=304.37M/s
BM_RowArray_DecodeOneOfColumns/"fixed_length_row:{boolean,int32,fixed_size_binary(64)}"/column:2
498039 ns 498533 ns 1431 rows/sec=131.456M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:0
433924 ns 434161 ns 1595 rows/sec=150.946M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:1
267960 ns 268163 ns 2638 rows/sec=244.385M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:2
1214087 ns 1214602 ns 589 rows/sec=53.9559M/s
BM_RowArray_DecodeOneOfColumns/"var_length_row:{boolean,int32,utf8,utf8}"/column:3
1335344 ns 1335821 ns 508 rows/sec=49.0597M/s
```
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