pitrou commented on pull request #11841:
URL: https://github.com/apache/arrow/pull/11841#issuecomment-984938449
Benchmarks here:
```
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Non-regressions: (9)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
benchmark baseline contender change %
counters
ChunkCSVVehiclesExample 1.870 GiB/sec 4.570 GiB/sec 144.442
{'family_index': 4, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVVehiclesExample', 'repetitions': 3, 'repetition_index': 2, 'threads':
1, 'iterations': 115}
ChunkCSVStocksExample 1.686 GiB/sec 2.904 GiB/sec 72.238
{'family_index': 5, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVStocksExample', 'repetitions': 3, 'repetition_index': 2, 'threads': 1,
'iterations': 557}
ParseCSVFlightsExample 442.445 MiB/sec 529.812 MiB/sec 19.746
{'family_index': 8, 'per_family_instance_index': 0, 'run_name':
'ParseCSVFlightsExample', 'repetitions': 3, 'repetition_index': 2, 'threads':
1, 'iterations': 324}
ParseCSVVehiclesExample 2.694 GiB/sec 2.887 GiB/sec 7.147
{'family_index': 9, 'per_family_instance_index': 0, 'run_name':
'ParseCSVVehiclesExample', 'repetitions': 3, 'repetition_index': 0, 'threads':
1, 'iterations': 167}
ParseCSVStocksExample 1.304 GiB/sec 1.396 GiB/sec 7.032
{'family_index': 10, 'per_family_instance_index': 0, 'run_name':
'ParseCSVStocksExample', 'repetitions': 3, 'repetition_index': 1, 'threads': 1,
'iterations': 442}
ParseCSVQuotedBlock 811.253 MiB/sec 852.518 MiB/sec 5.087
{'family_index': 6, 'per_family_instance_index': 0, 'run_name':
'ParseCSVQuotedBlock', 'repetitions': 3, 'repetition_index': 2, 'threads': 1,
'iterations': 3487}
ChunkCSVEscapedBlock 2.100 GiB/sec 2.187 GiB/sec 4.126
{'family_index': 1, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVEscapedBlock', 'repetitions': 3, 'repetition_index': 0, 'threads': 1,
'iterations': 9857}
ParseCSVEscapedBlock 627.081 MiB/sec 651.146 MiB/sec 3.838
{'family_index': 7, 'per_family_instance_index': 0, 'run_name':
'ParseCSVEscapedBlock', 'repetitions': 3, 'repetition_index': 1, 'threads': 1,
'iterations': 2870}
ChunkCSVNoNewlinesBlock 102.23985 98.118192 -4.031
{'family_index': 2, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVNoNewlinesBlock', 'repetitions': 3, 'repetition_index': 1, 'threads':
1, 'iterations': 6830200}
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Regressions: (2)
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
benchmark baseline contender change %
counters
ChunkCSVQuotedBlock 1.337 GiB/sec 1.225 GiB/sec -8.341
{'family_index': 0, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVQuotedBlock', 'repetitions': 3, 'repetition_index': 0, 'threads': 1,
'iterations': 5884}
ChunkCSVFlightsExample 1.309 GiB/sec 884.236 MiB/sec -34.043
{'family_index': 3, 'per_family_instance_index': 0, 'run_name':
'ChunkCSVFlightsExample', 'repetitions': 3, 'repetition_index': 1, 'threads':
1, 'iterations': 985}
```
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