pitrou commented on pull request #8320:
URL: https://github.com/apache/arrow/pull/8320#issuecomment-704460267
Updated benchmarks on AMD Ryzen:
```
benchmark baseline contender
change %
counters
0 BM_ReadListOfStructColumn/50 392.881 MiB/sec 564.029 MiB/sec
43.562 {'run_name': 'BM_ReadListOfStructColumn/50', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 23}
10 BM_ReadListColumn/50 485.560 MiB/sec 675.023 MiB/sec
39.019 {'run_name': 'BM_ReadListColumn/50', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 42}
7 BM_ReadStructOfListColumn/50 341.782 MiB/sec 462.097 MiB/sec
35.202 {'run_name': 'BM_ReadStructOfListColumn/50', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 20}
3 BM_ReadListOfListColumn/50 447.657 MiB/sec 566.594 MiB/sec
26.569 {'run_name': 'BM_ReadListOfListColumn/50', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 39}
23 BM_ReadListColumn/99 1.168 GiB/sec 1.365 GiB/sec
16.883 {'run_name': 'BM_ReadListColumn/99', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 102}
4 BM_ReadListOfStructColumn/99 975.429 MiB/sec 1.095 GiB/sec
14.925 {'run_name': 'BM_ReadListOfStructColumn/99', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 56}
9 BM_ReadStructOfListColumn/99 798.058 MiB/sec 896.789 MiB/sec
12.371 {'run_name': 'BM_ReadStructOfListColumn/99', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 46}
22 BM_ReadListOfListColumn/99 1.050 GiB/sec 1.168 GiB/sec
11.159 {'run_name': 'BM_ReadListOfListColumn/99', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 94}
1 BM_ReadListOfStructColumn/1 654.576 MiB/sec 725.676 MiB/sec
10.862 {'run_name': 'BM_ReadListOfStructColumn/1', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 38}
19 BM_ReadListColumn/1 919.949 MiB/sec 1005.740 MiB/sec
9.326 {'run_name': 'BM_ReadListColumn/1', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 81}
11 BM_ReadListOfStructColumn/0 835.259 MiB/sec 908.920 MiB/sec
8.819 {'run_name': 'BM_ReadListOfStructColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 49}
17 BM_ReadStructOfListColumn/1 605.129 MiB/sec 649.556 MiB/sec
7.342 {'run_name': 'BM_ReadStructOfListColumn/1', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 35}
8 BM_ReadListColumn/0 1.067 GiB/sec 1.145 GiB/sec
7.334 {'run_name': 'BM_ReadListColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 92}
5 BM_ReadStructOfListColumn/0 700.157 MiB/sec 740.414 MiB/sec
5.750 {'run_name': 'BM_ReadStructOfListColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 41}
6 BM_ReadListOfListColumn/0 929.109 MiB/sec 966.896 MiB/sec
4.067 {'run_name': 'BM_ReadListOfListColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 82}
14 BM_ReadStructOfStructColumn/50 1.537 GiB/sec 1.595 GiB/sec
3.772 {'run_name': 'BM_ReadStructOfStructColumn/50', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 45}
13 BM_ReadStructColumn/99 4.211 GiB/sec 4.330 GiB/sec
2.835 {'run_name': 'BM_ReadStructColumn/99', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 252}
20 BM_ReadStructColumn/50 1.155 GiB/sec 1.187 GiB/sec
2.755 {'run_name': 'BM_ReadStructColumn/50', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 69}
15 BM_ReadStructOfStructColumn/1 1.802 GiB/sec 1.849 GiB/sec
2.566 {'run_name': 'BM_ReadStructOfStructColumn/1', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 53}
12 BM_ReadStructColumn/1 1.798 GiB/sec 1.843 GiB/sec
2.521 {'run_name': 'BM_ReadStructColumn/1', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 110}
2 BM_ReadStructOfStructColumn/99 3.464 GiB/sec 3.530 GiB/sec
1.898 {'run_name': 'BM_ReadStructOfStructColumn/99', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 100}
16 BM_ReadStructOfStructColumn/0 6.021 GiB/sec 6.065 GiB/sec
0.724 {'run_name': 'BM_ReadStructOfStructColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 179}
21 BM_ReadStructColumn/0 6.821 GiB/sec 6.812 GiB/sec
-0.137 {'run_name': 'BM_ReadStructColumn/0', 'run_type': 'iteration',
'repetitions': 0, 'repetition_index': 0, 'threads': 1, 'iterations': 410}
18 BM_ReadListOfListColumn/1 805.644 MiB/sec 801.480 MiB/sec
-0.517 {'run_name': 'BM_ReadListOfListColumn/1', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 70}
```
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