pitrou commented on PR #46789:
URL: https://github.com/apache/arrow/pull/46789#issuecomment-2995463508
Local benchmark results on my AMD Ryzen 9 3900X CPU:
```
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Non-regressions: (40)
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
benchmark baseline
contender change %
counters
BM_ByteStreamSplitDecode_FLBA_Generic<2>/1024 4.020 GiB/sec 59.711
GiB/sec 1385.469 {'family_index': 2, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<2>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 1463689}
BM_ByteStreamSplitDecode_FLBA_Generic<2>/65536 4.057 GiB/sec 53.022
GiB/sec 1206.800 {'family_index': 2, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<2>/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 23272}
BM_ByteStreamSplitEncode_FLBA_Generic<2>/65536 4.690 GiB/sec 7.451
GiB/sec 58.859 {'family_index': 7, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<2>/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 27316}
BM_ByteStreamSplitEncode_FLBA_Generic<2>/1024 4.777 GiB/sec 7.398
GiB/sec 54.878 {'family_index': 7, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<2>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 1749779}
BM_ByteStreamSplitEncode_Double_Generic/1024 7.294 GiB/sec 8.597
GiB/sec 17.874 {'family_index': 6, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Double_Generic/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 654439}
BM_ByteStreamSplitDecode_Float_Sse2/1024 7.816 GiB/sec 8.696
GiB/sec 11.247 {'family_index': 14, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Float_Sse2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 1478390}
BM_ByteStreamSplitEncode_Double_Sse2/1024 7.656 GiB/sec 8.466
GiB/sec 10.575 {'family_index': 17, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Double_Sse2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 685857}
BM_ByteStreamSplitDecode_Float_Sse2/65536 7.368 GiB/sec 8.091
GiB/sec 9.813 {'family_index': 14, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Float_Sse2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 21078}
BM_ByteStreamSplitEncode_Double_Sse2/65536 7.303 GiB/sec 7.784
GiB/sec 6.596 {'family_index': 17, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Double_Sse2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 10413}
BM_ByteStreamSplitEncode_Double_Generic/65536 7.498 GiB/sec 7.918
GiB/sec 5.600 {'family_index': 6, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Double_Generic/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 10468}
BM_ByteStreamSplitDecode_Double_Sse2/65536 8.489 GiB/sec 8.720
GiB/sec 2.720 {'family_index': 15, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Double_Sse2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 12255}
BM_ByteStreamSplitDecode_Double_Sse2/1024 9.153 GiB/sec 9.301
GiB/sec 1.619 {'family_index': 15, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Double_Sse2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 850920}
BM_ByteStreamSplitEncode_FLBA_Generic<16>/1024 5.002 GiB/sec 5.059
GiB/sec 1.142 {'family_index': 9, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<16>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 228207}
BM_ByteStreamSplitDecode_Double_Avx2/65536 13.154 GiB/sec 13.270
GiB/sec 0.886 {'family_index': 19, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Double_Avx2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 18728}
BM_ByteStreamSplitEncode_Float_Avx2/1024 12.957 GiB/sec 13.062
GiB/sec 0.809 {'family_index': 20, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Float_Avx2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 2420490}
BM_ByteStreamSplitDecode_Float_Avx2/1024 19.404 GiB/sec 19.527
GiB/sec 0.634 {'family_index': 18, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Float_Avx2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 3547412}
BM_ByteStreamSplitDecode_Double_Avx2/1024 13.644 GiB/sec 13.690
GiB/sec 0.338 {'family_index': 19, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Double_Avx2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 1263795}
BM_ByteStreamSplitEncode_Float_Generic/65536 13.313 GiB/sec 13.346
GiB/sec 0.244 {'family_index': 5, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Float_Generic/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 38128}
BM_ByteStreamSplitDecode_Float_Scalar/65536 4.038 GiB/sec 4.046
GiB/sec 0.199 {'family_index': 10, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Float_Scalar/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 11709}
BM_ByteStreamSplitEncode_FLBA_Generic<16>/65536 4.740 GiB/sec 4.748
GiB/sec 0.164 {'family_index': 9, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<16>/65536', 'repetitions':
1, 'repetition_index': 0, 'threads': 1, 'iterations': 3418}
BM_ByteStreamSplitEncode_Double_Scalar/65536 5.002 GiB/sec 4.999
GiB/sec -0.058 {'family_index': 13, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Double_Scalar/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 7119}
BM_ByteStreamSplitDecode_Double_Scalar/65536 3.959 GiB/sec 3.956
GiB/sec -0.078 {'family_index': 11, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Double_Scalar/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 5572}
BM_ByteStreamSplitEncode_FLBA_Generic<7>/1024 4.996 GiB/sec 4.993
GiB/sec -0.078 {'family_index': 8, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<7>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 522897}
BM_ByteStreamSplitEncode_Float_Avx2/65536 13.052 GiB/sec 13.017
GiB/sec -0.269 {'family_index': 20, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Float_Avx2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 37065}
BM_ByteStreamSplitDecode_Float_Avx2/65536 19.584 GiB/sec 19.527
GiB/sec -0.293 {'family_index': 18, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Float_Avx2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 55415}
BM_ByteStreamSplitDecode_Double_Scalar/1024 4.056 GiB/sec 4.038
GiB/sec -0.436 {'family_index': 11, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Double_Scalar/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 373026}
BM_ByteStreamSplitEncode_FLBA_Generic<7>/65536 4.972 GiB/sec 4.940
GiB/sec -0.649 {'family_index': 8, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_FLBA_Generic<7>/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 8158}
BM_ByteStreamSplitDecode_Float_Generic/1024 19.630 GiB/sec 19.501
GiB/sec -0.657 {'family_index': 0, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Float_Generic/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 3536526}
BM_ByteStreamSplitDecode_FLBA_Generic<7>/1024 4.030 GiB/sec 4.000
GiB/sec -0.730 {'family_index': 3, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<7>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 422470}
BM_ByteStreamSplitDecode_Double_Generic/65536 13.394 GiB/sec 13.293
GiB/sec -0.753 {'family_index': 1, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Double_Generic/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 19177}
BM_ByteStreamSplitDecode_Float_Scalar/1024 4.044 GiB/sec 4.013
GiB/sec -0.767 {'family_index': 10, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Float_Scalar/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 728013}
BM_ByteStreamSplitEncode_Double_Scalar/1024 5.140 GiB/sec 5.098
GiB/sec -0.813 {'family_index': 13, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Double_Scalar/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 465638}
BM_ByteStreamSplitDecode_Double_Generic/1024 13.988 GiB/sec 13.866
GiB/sec -0.868 {'family_index': 1, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_Double_Generic/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 1285102}
BM_ByteStreamSplitEncode_Float_Scalar/1024 5.112 GiB/sec 5.062
GiB/sec -0.975 {'family_index': 12, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Float_Scalar/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 938352}
BM_ByteStreamSplitDecode_Float_Generic/65536 20.086 GiB/sec 19.843
GiB/sec -1.209 {'family_index': 0, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_Float_Generic/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 57481}
BM_ByteStreamSplitEncode_Float_Scalar/65536 5.080 GiB/sec 5.014
GiB/sec -1.289 {'family_index': 12, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitEncode_Float_Scalar/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 14556}
BM_ByteStreamSplitDecode_FLBA_Generic<7>/65536 3.992 GiB/sec 3.939
GiB/sec -1.339 {'family_index': 3, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<7>/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 6540}
BM_ByteStreamSplitEncode_Float_Generic/1024 13.396 GiB/sec 13.206
GiB/sec -1.422 {'family_index': 5, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitEncode_Float_Generic/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 2450449}
BM_ByteStreamSplitDecode_FLBA_Generic<16>/1024 4.034 GiB/sec 3.900
GiB/sec -3.329 {'family_index': 4, 'per_family_instance_index': 0,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<16>/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 185049}
BM_ByteStreamSplitDecode_FLBA_Generic<16>/65536 3.871 GiB/sec 3.689
GiB/sec -4.711 {'family_index': 4, 'per_family_instance_index': 1,
'run_name': 'BM_ByteStreamSplitDecode_FLBA_Generic<16>/65536', 'repetitions':
1, 'repetition_index': 0, 'threads': 1, 'iterations': 2777}
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Regressions: (2)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
benchmark baseline contender
change %
counters
BM_ByteStreamSplitEncode_Float_Sse2/1024 11.229 GiB/sec 8.120 GiB/sec
-27.690 {'family_index': 16, 'per_family_instance_index': 0, 'run_name':
'BM_ByteStreamSplitEncode_Float_Sse2/1024', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 2049401}
BM_ByteStreamSplitEncode_Float_Sse2/65536 11.278 GiB/sec 7.951 GiB/sec
-29.498 {'family_index': 16, 'per_family_instance_index': 1, 'run_name':
'BM_ByteStreamSplitEncode_Float_Sse2/65536', 'repetitions': 1,
'repetition_index': 0, 'threads': 1, 'iterations': 25535}
```
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