easyice commented on issue #12826:
URL: https://github.com/apache/lucene/issues/12826#issuecomment-1823961753
The wikimediumall benchmark reslut looks fine on java 21:
<details>
<summary >java 21</summary>
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
IntNRQ 7.32 (10.5%) 7.17
(10.5%) -2.1% ( -20% - 21%) 0.528
HighTermTitleBDVSort 4.24 (6.7%) 4.18
(7.4%) -1.4% ( -14% - 13%) 0.521
PKLookup 97.77 (3.0%) 96.77
(4.1%) -1.0% ( -7% - 6%) 0.372
Respell 31.39 (2.0%) 31.25
(2.4%) -0.5% ( -4% - 3%) 0.504
HighSpanNear 2.06 (3.3%) 2.06
(2.9%) 0.1% ( -5% - 6%) 0.946
AndHighHigh 12.99 (3.0%) 13.01
(2.5%) 0.2% ( -5% - 5%) 0.835
Fuzzy1 37.99 (2.1%) 38.09
(2.1%) 0.3% ( -3% - 4%) 0.674
HighSloppyPhrase 8.97 (3.3%) 9.02
(3.4%) 0.6% ( -5% - 7%) 0.573
HighIntervalsOrdered 13.16 (3.4%) 13.24
(3.3%) 0.6% ( -5% - 7%) 0.544
MedSpanNear 8.66 (2.1%) 8.72
(1.9%) 0.7% ( -3% - 4%) 0.300
LowIntervalsOrdered 63.85 (2.2%) 64.40
(2.7%) 0.9% ( -3% - 5%) 0.264
MedIntervalsOrdered 1.00 (2.9%) 1.01
(2.8%) 0.9% ( -4% - 6%) 0.301
LowSpanNear 12.79 (3.0%) 12.92
(2.2%) 1.0% ( -4% - 6%) 0.235
AndHighMed 26.44 (3.2%) 26.72
(3.1%) 1.1% ( -5% - 7%) 0.283
LowSloppyPhrase 5.84 (2.4%) 5.90
(3.1%) 1.1% ( -4% - 6%) 0.214
HighPhrase 7.72 (3.9%) 7.81
(4.7%) 1.1% ( -7% - 10%) 0.421
OrHighHigh 16.44 (4.0%) 16.63
(4.2%) 1.1% ( -6% - 9%) 0.388
AndHighLow 412.43 (4.0%) 417.26
(3.2%) 1.2% ( -5% - 8%) 0.307
HighTermDayOfYearSort 142.91 (3.9%) 144.72
(3.1%) 1.3% ( -5% - 8%) 0.256
OrHighNotMed 309.12 (4.9%) 313.44
(3.6%) 1.4% ( -6% - 10%) 0.307
MedSloppyPhrase 11.26 (3.1%) 11.43
(3.6%) 1.5% ( -5% - 8%) 0.169
OrHighLow 177.96 (3.6%) 181.05
(3.1%) 1.7% ( -4% - 8%) 0.102
OrHighNotLow 214.08 (4.5%) 217.91
(4.2%) 1.8% ( -6% - 10%) 0.194
OrNotHighHigh 179.87 (4.5%) 183.13
(3.8%) 1.8% ( -6% - 10%) 0.171
MedPhrase 96.44 (4.8%) 98.24
(5.0%) 1.9% ( -7% - 12%) 0.231
Fuzzy2 25.19 (2.6%) 25.67
(3.1%) 1.9% ( -3% - 7%) 0.041
HighTermTitleSort 82.34 (3.9%) 84.06
(3.6%) 2.1% ( -5% - 9%) 0.076
LowPhrase 44.99 (4.5%) 45.94
(4.7%) 2.1% ( -6% - 11%) 0.144
OrHighNotHigh 139.88 (4.8%) 142.89
(4.6%) 2.2% ( -6% - 12%) 0.144
OrNotHighLow 269.48 (2.8%) 275.65
(2.7%) 2.3% ( -3% - 7%) 0.008
OrHighMed 48.08 (9.1%) 49.22
(7.5%) 2.4% ( -13% - 20%) 0.369
OrNotHighMed 140.40 (6.3%) 143.99
(6.4%) 2.6% ( -9% - 16%) 0.202
TermDTSort 78.01 (5.5%) 80.15
(5.7%) 2.7% ( -8% - 14%) 0.125
Wildcard 40.16 (2.6%) 41.47
(3.0%) 3.3% ( -2% - 9%) 0.000
HighTerm 302.83 (6.1%) 313.49
(4.7%) 3.5% ( -6% - 15%) 0.041
MedTerm 235.66 (6.7%) 245.00
(7.5%) 4.0% ( -9% - 19%) 0.078
LowTerm 245.23 (8.6%) 255.28
(10.4%) 4.1% ( -13% - 25%) 0.176
HighTermMonthSort 1037.99 (6.6%) 1089.92
(6.2%) 5.0% ( -7% - 19%) 0.013
Prefix3 56.06 (3.7%) 60.53
(3.6%) 8.0% ( 0% - 15%) 0.000
```
</details>
but a bit regression in java 17:
<details>
<summary >round 1</summary>
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
Prefix3 375.07 (3.2%) 367.08
(4.0%) -2.1% ( -9% - 5%) 0.065
TermDTSort 60.50 (11.1%) 59.29
(9.1%) -2.0% ( -19% - 20%) 0.533
HighTermTitleSort 66.17 (4.5%) 65.10
(4.7%) -1.6% ( -10% - 7%) 0.267
OrHighLow 150.58 (3.4%) 148.37
(3.8%) -1.5% ( -8% - 5%) 0.199
OrNotHighMed 154.69 (5.6%) 152.43
(5.5%) -1.5% ( -11% - 10%) 0.403
Wildcard 66.23 (2.7%) 65.46
(3.6%) -1.2% ( -7% - 5%) 0.247
Fuzzy2 34.93 (1.9%) 34.56
(2.4%) -1.1% ( -5% - 3%) 0.115
Fuzzy1 42.76 (2.2%) 42.37
(2.4%) -0.9% ( -5% - 3%) 0.211
AndHighHigh 23.15 (3.8%) 22.94
(5.6%) -0.9% ( -9% - 8%) 0.549
OrHighNotMed 124.65 (4.0%) 123.59
(6.0%) -0.9% ( -10% - 9%) 0.597
AndHighMed 34.19 (5.1%) 33.91
(6.2%) -0.8% ( -11% - 11%) 0.644
PKLookup 85.83 (3.7%) 85.15
(4.0%) -0.8% ( -8% - 7%) 0.522
HighTerm 205.07 (4.1%) 203.54
(5.4%) -0.7% ( -9% - 9%) 0.620
OrHighNotLow 197.15 (3.1%) 195.76
(5.5%) -0.7% ( -9% - 8%) 0.617
OrHighHigh 21.82 (5.0%) 21.67
(5.5%) -0.7% ( -10% - 10%) 0.676
AndHighLow 258.23 (5.4%) 256.58
(5.3%) -0.6% ( -10% - 10%) 0.708
OrNotHighLow 164.89 (4.8%) 163.88
(4.4%) -0.6% ( -9% - 8%) 0.672
Respell 25.64 (1.1%) 25.51
(2.1%) -0.5% ( -3% - 2%) 0.366
HighPhrase 55.05 (4.7%) 54.79
(3.3%) -0.5% ( -8% - 7%) 0.708
OrHighMed 35.21 (4.8%) 35.07
(4.9%) -0.4% ( -9% - 9%) 0.798
MedPhrase 9.71 (4.8%) 9.68
(4.1%) -0.4% ( -8% - 8%) 0.789
OrNotHighHigh 125.58 (3.9%) 125.12
(5.1%) -0.4% ( -9% - 9%) 0.800
LowTerm 213.73 (7.5%) 213.18
(7.9%) -0.3% ( -14% - 16%) 0.917
OrHighNotHigh 133.63 (4.0%) 133.29
(5.4%) -0.3% ( -9% - 9%) 0.866
MedTerm 190.20 (4.1%) 189.73
(5.5%) -0.2% ( -9% - 9%) 0.873
LowPhrase 37.92 (4.1%) 37.83
(3.6%) -0.2% ( -7% - 7%) 0.844
HighTermMonthSort 1009.33 (4.4%) 1008.15
(3.8%) -0.1% ( -7% - 8%) 0.928
HighTermDayOfYearSort 135.76 (3.6%) 135.88
(4.7%) 0.1% ( -7% - 8%) 0.947
MedIntervalsOrdered 3.59 (4.1%) 3.60
(4.1%) 0.2% ( -7% - 8%) 0.890
IntNRQ 73.81 (3.1%) 74.03
(4.9%) 0.3% ( -7% - 8%) 0.822
HighSloppyPhrase 7.70 (3.5%) 7.73
(3.5%) 0.3% ( -6% - 7%) 0.785
LowIntervalsOrdered 30.87 (6.3%) 31.03
(6.8%) 0.5% ( -11% - 14%) 0.808
HighIntervalsOrdered 2.56 (6.4%) 2.58
(6.7%) 0.6% ( -11% - 14%) 0.778
LowSloppyPhrase 2.58 (3.9%) 2.60
(4.4%) 0.8% ( -7% - 9%) 0.548
MedSloppyPhrase 8.17 (5.4%) 8.26
(6.2%) 1.0% ( -10% - 13%) 0.579
MedSpanNear 6.51 (3.5%) 6.60
(3.5%) 1.5% ( -5% - 8%) 0.183
HighTermTitleBDVSort 2.80 (6.9%) 2.84
(6.2%) 1.5% ( -10% - 15%) 0.470
HighSpanNear 4.77 (4.0%) 4.86
(3.7%) 1.8% ( -5% - 9%) 0.132
LowSpanNear 1.98 (4.1%) 2.04
(3.6%) 2.6% ( -4% - 10%) 0.029
```
</details>
<details>
<summary >round 2</summary>
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
HighTermMonthSort 952.00 (3.4%) 919.13
(3.1%) -3.5% ( -9% - 3%) 0.001
Prefix3 19.75 (6.3%) 19.10
(4.0%) -3.3% ( -12% - 7%) 0.050
OrNotHighLow 275.75 (4.6%) 267.37
(4.3%) -3.0% ( -11% - 6%) 0.032
AndHighLow 211.79 (4.6%) 205.48
(5.6%) -3.0% ( -12% - 7%) 0.065
Wildcard 32.09 (3.1%) 31.48
(2.7%) -1.9% ( -7% - 4%) 0.042
HighTermTitleSort 59.66 (3.3%) 58.59
(5.5%) -1.8% ( -10% - 7%) 0.211
AndHighHigh 15.35 (4.3%) 15.14
(3.7%) -1.3% ( -9% - 7%) 0.297
PKLookup 86.36 (2.7%) 85.37
(3.5%) -1.1% ( -7% - 5%) 0.247
OrHighLow 202.69 (2.8%) 200.80
(3.9%) -0.9% ( -7% - 5%) 0.385
LowSloppyPhrase 9.36 (2.7%) 9.27
(2.7%) -0.9% ( -6% - 4%) 0.286
OrHighNotLow 121.30 (5.6%) 120.37
(5.2%) -0.8% ( -10% - 10%) 0.651
MedSloppyPhrase 3.59 (4.0%) 3.56
(3.5%) -0.8% ( -7% - 6%) 0.515
OrHighHigh 18.91 (5.3%) 18.79
(5.3%) -0.6% ( -10% - 10%) 0.709
Fuzzy1 53.21 (1.6%) 52.91
(2.1%) -0.6% ( -4% - 3%) 0.333
OrHighNotMed 126.90 (5.6%) 126.26
(5.7%) -0.5% ( -11% - 11%) 0.777
HighTermDayOfYearSort 131.01 (2.7%) 130.50
(3.4%) -0.4% ( -6% - 5%) 0.691
OrNotHighHigh 120.68 (6.2%) 120.29
(5.0%) -0.3% ( -10% - 11%) 0.857
HighSloppyPhrase 8.17 (3.5%) 8.15
(4.3%) -0.2% ( -7% - 7%) 0.895
LowIntervalsOrdered 28.88 (3.1%) 28.90
(2.7%) 0.1% ( -5% - 6%) 0.920
OrHighNotHigh 123.95 (6.1%) 124.28
(5.3%) 0.3% ( -10% - 12%) 0.881
TermDTSort 73.12 (4.4%) 73.36
(6.8%) 0.3% ( -10% - 12%) 0.857
MedSpanNear 1.70 (6.3%) 1.71
(4.9%) 0.3% ( -10% - 12%) 0.846
Fuzzy2 26.90 (2.4%) 27.00
(2.6%) 0.4% ( -4% - 5%) 0.619
Respell 19.00 (2.8%) 19.08
(3.2%) 0.4% ( -5% - 6%) 0.680
OrHighMed 35.18 (5.0%) 35.34
(6.3%) 0.5% ( -10% - 12%) 0.803
IntNRQ 13.81 (7.6%) 13.88
(5.9%) 0.5% ( -12% - 15%) 0.816
HighSpanNear 0.57 (4.4%) 0.57
(4.3%) 0.6% ( -7% - 9%) 0.673
LowSpanNear 4.18 (3.1%) 4.21
(3.5%) 0.7% ( -5% - 7%) 0.513
OrNotHighMed 152.00 (5.9%) 153.35
(5.4%) 0.9% ( -9% - 13%) 0.621
HighPhrase 72.60 (5.1%) 73.52
(3.9%) 1.3% ( -7% - 10%) 0.380
HighIntervalsOrdered 5.49 (3.4%) 5.57
(3.2%) 1.3% ( -5% - 8%) 0.219
HighTerm 229.62 (3.8%) 232.72
(3.9%) 1.4% ( -6% - 9%) 0.269
AndHighMed 26.61 (6.7%) 27.03
(7.9%) 1.6% ( -12% - 17%) 0.497
MedIntervalsOrdered 12.86 (4.0%) 13.09
(4.6%) 1.8% ( -6% - 10%) 0.181
MedTerm 219.08 (4.1%) 223.57
(4.4%) 2.0% ( -6% - 11%) 0.130
LowPhrase 120.92 (4.0%) 124.10
(6.0%) 2.6% ( -7% - 13%) 0.103
MedPhrase 96.22 (3.9%) 98.92
(5.5%) 2.8% ( -6% - 12%) 0.064
LowTerm 383.91 (4.6%) 394.86
(6.3%) 2.9% ( -7% - 14%) 0.103
```
</details>
<details>
<summary >round 3</summary>
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
TermDTSort 63.00 (8.9%) 60.67
(9.5%) -3.7% ( -20% - 16%) 0.204
OrHighMed 41.42 (9.6%) 40.29
(9.5%) -2.7% ( -19% - 18%) 0.369
AndHighMed 29.74 (6.7%) 28.98
(5.7%) -2.5% ( -14% - 10%) 0.195
OrNotHighMed 136.45 (4.4%) 134.09
(5.4%) -1.7% ( -11% - 8%) 0.270
LowTerm 270.88 (8.5%) 266.44
(9.0%) -1.6% ( -17% - 17%) 0.553
MedIntervalsOrdered 7.81 (4.2%) 7.72
(3.6%) -1.1% ( -8% - 7%) 0.383
OrHighNotLow 221.53 (3.8%) 219.22
(3.4%) -1.0% ( -7% - 6%) 0.361
MedTerm 254.56 (5.3%) 251.91
(6.2%) -1.0% ( -11% - 11%) 0.568
MedPhrase 3.49 (5.8%) 3.45
(8.4%) -1.0% ( -14% - 13%) 0.654
HighIntervalsOrdered 7.07 (4.0%) 7.00
(3.2%) -1.0% ( -7% - 6%) 0.375
LowPhrase 27.02 (5.2%) 26.75
(7.9%) -1.0% ( -13% - 12%) 0.633
HighPhrase 38.48 (5.7%) 38.15
(7.5%) -0.9% ( -13% - 13%) 0.682
HighTermTitleSort 57.32 (4.4%) 56.84
(4.8%) -0.8% ( -9% - 8%) 0.564
OrNotHighHigh 157.66 (4.3%) 156.41
(4.3%) -0.8% ( -8% - 8%) 0.558
OrHighNotMed 142.27 (4.1%) 141.18
(4.5%) -0.8% ( -9% - 8%) 0.573
OrHighHigh 17.75 (5.3%) 17.61
(4.5%) -0.7% ( -10% - 9%) 0.633
LowIntervalsOrdered 3.56 (3.8%) 3.53
(3.9%) -0.7% ( -8% - 7%) 0.547
Fuzzy1 27.60 (3.7%) 27.45
(3.6%) -0.6% ( -7% - 6%) 0.618
HighTerm 182.80 (5.2%) 181.76
(4.5%) -0.6% ( -9% - 9%) 0.710
HighSpanNear 4.56 (2.7%) 4.54
(3.3%) -0.5% ( -6% - 5%) 0.609
OrHighNotHigh 129.64 (4.4%) 129.12
(4.3%) -0.4% ( -8% - 8%) 0.774
AndHighHigh 12.93 (5.0%) 12.89
(4.6%) -0.3% ( -9% - 9%) 0.845
MedSpanNear 3.15 (2.9%) 3.15
(3.3%) -0.3% ( -6% - 6%) 0.769
LowSpanNear 78.38 (2.4%) 78.29
(3.2%) -0.1% ( -5% - 5%) 0.891
OrNotHighLow 218.98 (3.9%) 218.86
(5.3%) -0.1% ( -8% - 9%) 0.971
Fuzzy2 29.17 (2.2%) 29.21
(2.7%) 0.1% ( -4% - 5%) 0.856
LowSloppyPhrase 7.83 (2.7%) 7.85
(2.3%) 0.2% ( -4% - 5%) 0.805
Prefix3 82.20 (3.8%) 82.38
(3.5%) 0.2% ( -6% - 7%) 0.848
MedSloppyPhrase 2.03 (3.8%) 2.04
(3.9%) 0.4% ( -6% - 8%) 0.736
Wildcard 46.05 (3.2%) 46.25
(2.8%) 0.4% ( -5% - 6%) 0.649
OrHighLow 184.14 (3.8%) 185.31
(4.6%) 0.6% ( -7% - 9%) 0.636
Respell 24.16 (2.5%) 24.34
(2.1%) 0.7% ( -3% - 5%) 0.322
HighTermTitleBDVSort 4.06 (7.0%) 4.09
(8.0%) 0.7% ( -13% - 16%) 0.760
HighSloppyPhrase 8.58 (2.7%) 8.65
(4.1%) 0.8% ( -5% - 7%) 0.495
HighTermDayOfYearSort 134.18 (4.2%) 135.37
(3.2%) 0.9% ( -6% - 8%) 0.456
AndHighLow 266.78 (4.1%) 269.41
(5.5%) 1.0% ( -8% - 11%) 0.520
HighTermMonthSort 990.73 (3.4%) 1001.94
(6.3%) 1.1% ( -8% - 11%) 0.481
PKLookup 82.29 (3.8%) 83.62
(4.2%) 1.6% ( -6% - 10%) 0.205
IntNRQ 20.01 (8.5%) 20.82
(7.6%) 4.0% ( -11% - 22%) 0.115
```
</details>
I suspect it's related to virtual functions(not sure). so put the decode
loop in `DataInput`, like below, it looks better.
```
public void readVIntGroupFully(long[] docs, int limit) throws IOException {
int i;
for (i = 0; i <= limit - 4; i += 4) {
readVIntGroup(docs, i);
}
for (; i < limit; ++i) {
docs[i] = readVInt();
}
}
```
<details>
<summary >java 17</summary>
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
HighTerm 217.93 (5.0%) 213.35
(5.7%) -2.1% ( -12% - 9%) 0.216
LowTerm 175.72 (10.8%) 172.38
(10.3%) -1.9% ( -20% - 21%) 0.569
LowPhrase 76.52 (6.2%) 75.08
(4.9%) -1.9% ( -12% - 9%) 0.287
Prefix3 41.57 (4.0%) 40.89
(6.7%) -1.6% ( -11% - 9%) 0.343
HighSloppyPhrase 5.22 (4.7%) 5.15
(4.2%) -1.3% ( -9% - 8%) 0.374
MedTerm 255.54 (5.3%) 252.50
(6.7%) -1.2% ( -12% - 11%) 0.533
TermDTSort 65.59 (10.9%) 64.82
(11.0%) -1.2% ( -20% - 23%) 0.733
MedPhrase 2.41 (3.4%) 2.39
(4.8%) -1.1% ( -9% - 7%) 0.406
MedSloppyPhrase 5.90 (3.9%) 5.84
(2.7%) -1.0% ( -7% - 5%) 0.344
OrHighLow 172.44 (6.2%) 170.82
(5.9%) -0.9% ( -12% - 11%) 0.623
HighSpanNear 0.56 (4.3%) 0.56
(4.8%) -0.9% ( -9% - 8%) 0.511
MedSpanNear 6.21 (3.5%) 6.15
(3.8%) -0.9% ( -7% - 6%) 0.432
OrHighNotMed 187.80 (4.3%) 186.23
(5.2%) -0.8% ( -9% - 9%) 0.581
HighIntervalsOrdered 2.47 (3.9%) 2.45
(5.1%) -0.8% ( -9% - 8%) 0.565
MedIntervalsOrdered 3.20 (2.8%) 3.18
(3.1%) -0.8% ( -6% - 5%) 0.390
HighPhrase 35.26 (4.1%) 34.99
(4.7%) -0.8% ( -9% - 8%) 0.582
HighTermMonthSort 1007.50 (3.3%) 1000.09
(4.5%) -0.7% ( -8% - 7%) 0.558
OrNotHighHigh 152.87 (5.1%) 151.87
(4.9%) -0.7% ( -10% - 9%) 0.680
LowIntervalsOrdered 3.32 (3.5%) 3.30
(4.1%) -0.6% ( -7% - 7%) 0.600
Wildcard 31.82 (2.3%) 31.62
(3.3%) -0.6% ( -6% - 5%) 0.486
OrHighMed 29.99 (6.6%) 29.81
(6.4%) -0.6% ( -12% - 13%) 0.775
LowSpanNear 7.29 (2.9%) 7.25
(2.9%) -0.4% ( -6% - 5%) 0.627
LowSloppyPhrase 2.14 (4.4%) 2.13
(3.1%) -0.4% ( -7% - 7%) 0.741
AndHighLow 362.33 (5.4%) 361.50
(5.1%) -0.2% ( -10% - 10%) 0.890
OrHighNotLow 149.17 (4.5%) 148.85
(5.7%) -0.2% ( -9% - 10%) 0.894
HighTermTitleSort 65.78 (3.2%) 65.74
(3.6%) -0.1% ( -6% - 6%) 0.953
OrNotHighLow 164.79 (5.6%) 164.76
(5.3%) -0.0% ( -10% - 11%) 0.989
OrNotHighMed 79.26 (6.2%) 79.27
(6.4%) 0.0% ( -11% - 13%) 0.993
Fuzzy1 35.59 (1.5%) 35.61
(1.9%) 0.1% ( -3% - 3%) 0.917
Respell 22.49 (2.6%) 22.51
(1.6%) 0.1% ( -4% - 4%) 0.916
AndHighMed 53.11 (7.4%) 53.16
(8.6%) 0.1% ( -14% - 17%) 0.970
Fuzzy2 38.87 (1.7%) 38.91
(1.8%) 0.1% ( -3% - 3%) 0.854
HighTermDayOfYearSort 146.20 (2.2%) 146.51
(4.1%) 0.2% ( -5% - 6%) 0.840
AndHighHigh 19.86 (3.1%) 19.93
(3.5%) 0.3% ( -6% - 7%) 0.752
OrHighHigh 17.28 (4.9%) 17.38
(4.6%) 0.6% ( -8% - 10%) 0.701
OrHighNotHigh 127.32 (4.3%) 128.09
(5.2%) 0.6% ( -8% - 10%) 0.688
PKLookup 85.67 (3.6%) 86.23
(3.1%) 0.7% ( -5% - 7%) 0.535
HighTermTitleBDVSort 2.91 (7.4%) 2.93
(6.8%) 0.8% ( -12% - 16%) 0.719
IntNRQ 16.32 (4.3%) 16.49
(7.9%) 1.0% ( -10% - 13%) 0.612
```
</details>
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