mikemccand commented on pull request #518:
URL: https://github.com/apache/lucene/pull/518#issuecomment-999918920
I re-ran benchmarks with more iterations per task (200 vs 20 before) to let
hotspot have more time to optimize in each of the 20 JVMs:
```
Task QPS base StdDevQPS new-mmap
StdDev Pct diff p-value
BrowseMonthTaxoFacets 4.71 (6.2%) 4.39
(3.3%) -6.8% ( -15% - 2%) 0.000
BrowseMonthSSDVFacets 7.86 (14.8%) 7.34
(10.9%) -6.7% ( -28% - 22%) 0.104
HighTermMonthSort 59.25 (12.5%) 57.42
(11.8%) -3.1% ( -24% - 24%) 0.420
PKLookup 138.18 (1.1%) 135.03
(1.6%) -2.3% ( -4% - 0%) 0.000
Fuzzy1 45.86 (1.3%) 45.15
(1.5%) -1.6% ( -4% - 1%) 0.000
HighSloppyPhrase 7.90 (5.1%) 7.78
(5.1%) -1.6% ( -11% - 9%) 0.332
Fuzzy2 38.89 (1.1%) 38.30
(1.3%) -1.5% ( -3% - 0%) 0.000
MedPhrase 14.90 (2.7%) 14.72
(3.6%) -1.2% ( -7% - 5%) 0.230
Respell 36.40 (1.2%) 36.05
(1.5%) -0.9% ( -3% - 1%) 0.029
LowPhrase 21.59 (2.1%) 21.43
(2.5%) -0.7% ( -5% - 3%) 0.304
BrowseDayOfYearTaxoFacets 4.58 (12.3%) 4.56
(10.4%) -0.6% ( -20% - 25%) 0.861
BrowseRandomLabelTaxoFacets 4.06 (8.1%) 4.04
(7.5%) -0.6% ( -14% - 16%) 0.817
BrowseDateTaxoFacets 4.57 (12.2%) 4.55
(10.5%) -0.4% ( -20% - 25%) 0.904
OrHighHigh 18.30 (3.4%) 18.22
(2.5%) -0.4% ( -6% - 5%) 0.663
Wildcard 42.52 (13.2%) 42.55
(12.7%) 0.1% ( -22% - 29%) 0.989
AndHighHighDayTaxoFacets 21.35 (2.1%) 21.36
(1.8%) 0.1% ( -3% - 4%) 0.926
OrHighMed 91.02 (3.1%) 91.16
(2.4%) 0.2% ( -5% - 5%) 0.860
MedTermDayTaxoFacets 22.74 (5.0%) 22.78
(3.0%) 0.2% ( -7% - 8%) 0.902
HighIntervalsOrdered 3.79 (2.9%) 3.80
(3.3%) 0.2% ( -5% - 6%) 0.814
IntNRQ 93.38 (8.2%) 93.60
(1.0%) 0.2% ( -8% - 10%) 0.897
HighTermTitleBDVSort 4.38 (5.9%) 4.40
(4.6%) 0.3% ( -9% - 11%) 0.841
OrHighMedDayTaxoFacets 8.05 (3.2%) 8.08
(4.2%) 0.3% ( -6% - 8%) 0.770
AndHighHigh 23.23 (2.8%) 23.31
(3.5%) 0.4% ( -5% - 6%) 0.705
AndHighMedDayTaxoFacets 42.68 (2.2%) 42.87
(1.6%) 0.5% ( -3% - 4%) 0.455
TermDTSort 667.66 (1.7%) 670.71
(1.3%) 0.5% ( -2% - 3%) 0.342
AndHighMed 98.30 (3.1%) 98.84
(3.3%) 0.5% ( -5% - 7%) 0.589
Prefix3 33.28 (3.4%) 33.47
(4.3%) 0.6% ( -6% - 8%) 0.645
OrHighLow 404.97 (3.6%) 407.82
(2.1%) 0.7% ( -4% - 6%) 0.446
LowSloppyPhrase 62.46 (2.6%) 62.91
(2.1%) 0.7% ( -3% - 5%) 0.334
OrNotHighHigh 713.35 (3.2%) 719.56
(2.5%) 0.9% ( -4% - 6%) 0.332
LowTerm 951.78 (1.9%) 960.95
(1.7%) 1.0% ( -2% - 4%) 0.093
MedSloppyPhrase 28.24 (2.4%) 28.57
(2.3%) 1.2% ( -3% - 5%) 0.115
MedTerm 1173.70 (2.1%) 1187.71
(2.7%) 1.2% ( -3% - 6%) 0.121
OrNotHighMed 576.27 (2.1%) 583.63
(1.7%) 1.3% ( -2% - 5%) 0.035
HighPhrase 201.44 (3.4%) 204.22
(1.7%) 1.4% ( -3% - 6%) 0.101
HighTermDayOfYearSort 1822.34 (2.1%) 1847.93
(1.5%) 1.4% ( -2% - 5%) 0.015
BrowseRandomLabelSSDVFacets 5.22 (7.4%) 5.30
(7.2%) 1.5% ( -12% - 17%) 0.515
OrHighNotLow 811.72 (3.1%) 824.52
(2.7%) 1.6% ( -4% - 7%) 0.086
HighTerm 963.95 (3.3%) 979.31
(3.6%) 1.6% ( -5% - 8%) 0.142
LowIntervalsOrdered 55.56 (3.7%) 56.49
(3.3%) 1.7% ( -5% - 8%) 0.133
MedIntervalsOrdered 12.72 (3.9%) 12.95
(3.7%) 1.8% ( -5% - 9%) 0.141
MedSpanNear 7.21 (3.7%) 7.37
(3.2%) 2.1% ( -4% - 9%) 0.049
OrHighNotHigh 781.73 (2.7%) 799.12
(2.7%) 2.2% ( -3% - 7%) 0.009
AndHighLow 514.79 (4.0%) 526.55
(1.3%) 2.3% ( -2% - 7%) 0.015
LowSpanNear 22.27 (2.6%) 22.80
(2.2%) 2.4% ( -2% - 7%) 0.002
OrNotHighLow 477.71 (5.1%) 489.15
(1.3%) 2.4% ( -3% - 9%) 0.042
OrHighNotMed 913.86 (2.3%) 935.89
(2.3%) 2.4% ( -2% - 7%) 0.001
HighSpanNear 14.42 (4.9%) 14.83
(3.9%) 2.8% ( -5% - 12%) 0.044
BrowseDayOfYearSSDVFacets 7.33 (21.1%) 7.79
(17.2%) 6.3% ( -26% - 56%) 0.301
```
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