pitrou edited a comment on pull request #8770:
URL: https://github.com/apache/arrow/pull/8770#issuecomment-734223439
Aggregation benchmarks:
```
benchmark baseline contender
change %
counters
108 ModeKernelBoolean/1048576/0 57.487 MiB/sec 37.406 GiB/sec
66530.741 {'run_name': 'ModeKernelBoolean/1048576/0', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 41, 'null_percent': 0.0}
93 ModeKernelBoolean/1048576/2 28.239 MiB/sec 1.863 GiB/sec
6655.773 {'run_name': 'ModeKernelBoolean/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 20, 'null_percent': 50.0}
56 ModeKernelBoolean/1048576/10 43.613 MiB/sec 1.799 GiB/sec
4123.421 {'run_name': 'ModeKernelBoolean/1048576/10', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 31, 'null_percent': 10.0}
29 ModeKernelBoolean/1048576/100 58.888 MiB/sec 1.826 GiB/sec
3075.803 {'run_name': 'ModeKernelBoolean/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 39, 'null_percent': 1.0}
124 ModeKernelBoolean/1048576/10000 61.189 MiB/sec 1.864 GiB/sec
3018.637 {'run_name': 'ModeKernelBoolean/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 43, 'null_percent': 0.01}
35 ModeKernelInt8/1048576/0 792.467 MiB/sec 2.473 GiB/sec
219.603 {'run_name': 'ModeKernelInt8/1048576/0', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1000, 'null_percent': 0.0}
36 ModeKernelInt16/1048576/10000 1.922 GiB/sec 4.217 GiB/sec
119.409 {'run_name': 'ModeKernelInt16/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 2138, 'null_percent': 0.01}
100 VarianceKernelDouble/1048576/100 2.445 GiB/sec 4.960 GiB/sec
102.888 {'run_name': 'VarianceKernelDouble/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1746, 'null_percent': 1.0}
76 ModeKernelInt32/1048576/0 4.050 GiB/sec 8.075 GiB/sec
99.390 {'run_name': 'ModeKernelInt32/1048576/0', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 4419, 'null_percent': 0.0}
109 VarianceKernelFloat/1048576/100 1.216 GiB/sec 2.387 GiB/sec
96.341 {'run_name': 'VarianceKernelFloat/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 871, 'null_percent': 1.0}
20 ModeKernelInt64/1048576/10000 5.547 GiB/sec 9.831 GiB/sec
77.229 {'run_name': 'ModeKernelInt64/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 6475, 'null_percent': 0.01}
54 VarianceKernelInt64/1048576/100 3.511 GiB/sec 5.748 GiB/sec
63.693 {'run_name': 'VarianceKernelInt64/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 2519, 'null_percent': 1.0}
28 ModeKernelInt16/1048576/100 1.292 GiB/sec 2.077 GiB/sec
60.697 {'run_name': 'ModeKernelInt16/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 927, 'null_percent': 1.0}
94 ModeKernelInt32/1048576/100 2.530 GiB/sec 3.969 GiB/sec
56.872 {'run_name': 'ModeKernelInt32/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1805, 'null_percent': 1.0}
67 ModeKernelInt8/1048576/2 237.264 MiB/sec 362.684 MiB/sec
52.861 {'run_name': 'ModeKernelInt8/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 166, 'null_percent': 50.0}
11 VarianceKernelFloat/1048576/2 508.083 MiB/sec 727.822 MiB/sec
43.249 {'run_name': 'VarianceKernelFloat/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 355, 'null_percent': 50.0}
65 VarianceKernelDouble/1048576/2 1.030 GiB/sec 1.457 GiB/sec
41.439 {'run_name': 'VarianceKernelDouble/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 734, 'null_percent': 50.0}
84 ModeKernelInt64/1048576/2 1.003 GiB/sec 1.409 GiB/sec
40.411 {'run_name': 'ModeKernelInt64/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 713, 'null_percent': 50.0}
22 ModeKernelInt16/1048576/2 253.082 MiB/sec 355.311 MiB/sec
40.394 {'run_name': 'ModeKernelInt16/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 177, 'null_percent': 50.0}
15 VarianceKernelInt32/1048576/2 1011.938 MiB/sec 1.387 GiB/sec
40.305 {'run_name': 'VarianceKernelInt32/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 701, 'null_percent': 50.0}
98 ModeKernelInt32/1048576/2 502.640 MiB/sec 702.642 MiB/sec
39.790 {'run_name': 'ModeKernelInt32/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 341, 'null_percent': 50.0}
61 VarianceKernelInt64/1048576/2 1.024 GiB/sec 1.422 GiB/sec
38.871 {'run_name': 'VarianceKernelInt64/1048576/2', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 726, 'null_percent': 50.0}
81 VarianceKernelFloat/1048576/10 854.282 MiB/sec 1.153 GiB/sec
38.189 {'run_name': 'VarianceKernelFloat/1048576/10', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 598, 'null_percent': 10.0}
34 ModeKernelInt64/1048576/100 4.766 GiB/sec 6.547 GiB/sec
37.389 {'run_name': 'ModeKernelInt64/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 3416, 'null_percent': 1.0}
2 VarianceKernelDouble/1048576/10 1.670 GiB/sec 2.290 GiB/sec
37.083 {'run_name': 'VarianceKernelDouble/1048576/10', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1195, 'null_percent': 10.0}
111 VarianceKernelInt32/1048576/100 4.159 GiB/sec 5.506 GiB/sec
32.395 {'run_name': 'VarianceKernelInt32/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 2978, 'null_percent': 1.0}
30 ModeKernelInt8/1048576/100 1.276 GiB/sec 1.634 GiB/sec
28.042 {'run_name': 'ModeKernelInt8/1048576/100', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 919, 'null_percent': 1.0}
73 VarianceKernelInt32/1048576/10000 6.548 GiB/sec 7.310 GiB/sec
11.634 {'run_name': 'VarianceKernelInt32/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 4687, 'null_percent': 0.01}
1 VarianceKernelInt32/1048576/0 7.168 GiB/sec 7.952 GiB/sec
10.944 {'run_name': 'VarianceKernelInt32/1048576/0', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 5116, 'null_percent': 0.0}
[...]
16 ModeKernelInt64/1048576/10 2.376 GiB/sec 2.181 GiB/sec
-8.192 {'run_name': 'ModeKernelInt64/1048576/10', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1700, 'null_percent': 10.0}
63 ModeKernelInt32/1048576/10000 6.489 GiB/sec 3.047 GiB/sec
-53.040 {'run_name': 'ModeKernelInt32/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 4653, 'null_percent': 0.01}
45 ModeKernelInt8/1048576/10000 2.262 GiB/sec 1.002 GiB/sec
-55.719 {'run_name': 'ModeKernelInt8/1048576/10000', 'run_type':
'iteration', 'repetitions': 0, 'repetition_index': 0, 'threads': 1,
'iterations': 1617, 'null_percent': 0.01}
```
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