jpountz commented on PR #13958:
URL: https://github.com/apache/lucene/pull/13958#issuecomment-2438737799
Specializing `ImpactsDISI#nextDoc()` helped get rid of the slowdown:
```
TaskQPS baseline StdDevQPS
my_modified_version StdDev Pct diff p-value
AndStopWords 31.34 (1.8%) 30.84
(4.0%) -1.6% ( -7% - 4%) 0.105
CountTerm 8573.12 (3.8%) 8449.05
(4.7%) -1.4% ( -9% - 7%) 0.284
CountOrHighMed 105.75 (2.1%) 104.50
(1.4%) -1.2% ( -4% - 2%) 0.039
TermDTSort 363.06 (6.4%) 358.98
(6.6%) -1.1% ( -13% - 12%) 0.585
CountOrHighHigh 50.62 (2.4%) 50.28
(1.7%) -0.7% ( -4% - 3%) 0.305
IntNRQ 453.67 (4.7%) 451.13
(4.5%) -0.6% ( -9% - 9%) 0.700
OrHighRare 283.32 (3.8%) 282.52
(3.8%) -0.3% ( -7% - 7%) 0.813
Fuzzy1 78.58 (2.1%) 78.42
(3.0%) -0.2% ( -5% - 5%) 0.812
HighTermDayOfYearSort 850.86 (4.4%) 849.52
(3.0%) -0.2% ( -7% - 7%) 0.895
HighTermTitleBDVSort 13.97 (6.3%) 13.96
(5.5%) -0.1% ( -11% - 12%) 0.974
And2Terms2StopWords 157.31 (1.3%) 157.27
(2.2%) -0.0% ( -3% - 3%) 0.965
LowTerm 985.67 (3.0%) 986.01
(1.8%) 0.0% ( -4% - 4%) 0.964
HighTermMonthSort 3216.69 (2.2%) 3217.92
(3.9%) 0.0% ( -5% - 6%) 0.969
Fuzzy2 73.69 (2.0%) 73.74
(2.4%) 0.1% ( -4% - 4%) 0.910
AndHighHigh 65.88 (2.1%) 66.18
(2.0%) 0.5% ( -3% - 4%) 0.472
And3Terms 169.85 (2.0%) 170.81
(2.4%) 0.6% ( -3% - 5%) 0.424
OrMany 19.10 (1.7%) 19.22
(1.7%) 0.6% ( -2% - 4%) 0.237
Or2Terms2StopWords 160.88 (1.4%) 161.91
(2.0%) 0.6% ( -2% - 4%) 0.241
OrStopWords 34.90 (1.4%) 35.15
(3.9%) 0.7% ( -4% - 6%) 0.450
OrHighLow 799.18 (1.6%) 805.33
(1.5%) 0.8% ( -2% - 3%) 0.117
CountAndHighMed 149.99 (3.1%) 151.23
(1.1%) 0.8% ( -3% - 5%) 0.261
Wildcard 88.47 (2.7%) 89.32
(3.2%) 1.0% ( -4% - 7%) 0.309
PKLookup 270.87 (3.8%) 273.47
(1.7%) 1.0% ( -4% - 6%) 0.307
Prefix3 93.00 (8.2%) 94.14
(6.3%) 1.2% ( -12% - 17%) 0.599
MedTerm 690.05 (2.6%) 701.55
(1.3%) 1.7% ( -2% - 5%) 0.010
OrHighNotMed 359.57 (2.7%) 366.02
(1.9%) 1.8% ( -2% - 6%) 0.014
Or3Terms 170.81 (1.3%) 173.98
(2.1%) 1.9% ( -1% - 5%) 0.001
OrHighNotLow 432.25 (3.4%) 440.76
(2.4%) 2.0% ( -3% - 8%) 0.035
HighTermTitleSort 159.15 (4.8%) 162.44
(2.9%) 2.1% ( -5% - 10%) 0.096
AndHighMed 225.25 (2.6%) 229.93
(1.4%) 2.1% ( -1% - 6%) 0.002
HighTerm 455.45 (2.4%) 465.69
(2.1%) 2.2% ( -2% - 6%) 0.002
OrHighHigh 78.87 (1.5%) 80.64
(1.5%) 2.3% ( 0% - 5%) 0.000
OrHighNotHigh 218.32 (2.7%) 224.10
(2.0%) 2.6% ( -2% - 7%) 0.000
OrNotHighLow 1111.11 (2.8%) 1144.28
(2.5%) 3.0% ( -2% - 8%) 0.000
OrHighMed 267.13 (1.8%) 275.57
(1.3%) 3.2% ( 0% - 6%) 0.000
OrNotHighMed 303.24 (3.0%) 313.56
(2.5%) 3.4% ( -2% - 9%) 0.000
OrNotHighHigh 230.18 (2.8%) 238.62
(2.2%) 3.7% ( -1% - 8%) 0.000
AndHighLow 866.39 (2.7%) 903.54
(2.4%) 4.3% ( 0% - 9%) 0.000
CountAndHighHigh 49.60 (3.1%) 53.54
(0.9%) 7.9% ( 3% - 12%) 0.000
```
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