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https://issues.apache.org/jira/browse/LUCENE-5292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael McCandless updated LUCENE-5292:
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Attachment: LUCENE-5292.patch
Patch.
> Remove code dup in Disjunction/Sum/MaxScorer
> --------------------------------------------
>
> Key: LUCENE-5292
> URL: https://issues.apache.org/jira/browse/LUCENE-5292
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 4.6, 5.0
>
> Attachments: LUCENE-5292.patch
>
>
> This patch is from Rob (I tweaked a bit, removing the numScorers param
> to DisjunctionScorer ctor); it eliminates the code dup in the two
> DisjunctionScorer subclasses by moving the code up to the base class
> ... I did a quick perf test on Wikipedia and it looks like hotspot
> seems to not mind (NOTE: I hardwired BS2 for both comp and base):
> {noformat}
> Task QPS base StdDev QPS comp StdDev
> Pct diff
> MedPhrase 201.46 (5.9%) 200.06 (6.5%)
> -0.7% ( -12% - 12%)
> HighPhrase 4.32 (6.5%) 4.29 (6.8%)
> -0.6% ( -13% - 13%)
> LowPhrase 13.21 (1.5%) 13.15 (1.8%)
> -0.5% ( -3% - 2%)
> OrNotHighLow 371.05 (2.0%) 369.82 (1.9%)
> -0.3% ( -4% - 3%)
> AndHighLow 394.43 (2.3%) 393.16 (2.4%)
> -0.3% ( -4% - 4%)
> MedSpanNear 31.08 (3.2%) 31.01 (3.1%)
> -0.2% ( -6% - 6%)
> HighSpanNear 8.20 (5.9%) 8.19 (5.5%)
> -0.2% ( -10% - 11%)
> OrNotHighHigh 7.62 (3.1%) 7.60 (4.2%)
> -0.2% ( -7% - 7%)
> OrHighNotMed 26.76 (3.6%) 26.73 (4.4%)
> -0.1% ( -7% - 8%)
> OrNotHighMed 51.30 (1.3%) 51.28 (1.2%)
> -0.0% ( -2% - 2%)
> OrHighMed 18.50 (5.0%) 18.49 (5.1%)
> -0.0% ( -9% - 10%)
> OrHighLow 14.30 (6.0%) 14.30 (6.1%)
> 0.0% ( -11% - 12%)
> OrHighHigh 5.53 (4.7%) 5.53 (4.8%)
> 0.0% ( -9% - 10%)
> AndHighMed 34.18 (1.6%) 34.19 (1.7%)
> 0.0% ( -3% - 3%)
> OrHighNotLow 19.71 (3.8%) 19.72 (4.4%)
> 0.0% ( -7% - 8%)
> MedSloppyPhrase 3.49 (4.0%) 3.50 (3.2%)
> 0.1% ( -6% - 7%)
> Fuzzy1 67.11 (2.3%) 67.17 (2.6%)
> 0.1% ( -4% - 5%)
> OrHighNotHigh 9.69 (3.1%) 9.70 (4.0%)
> 0.1% ( -6% - 7%)
> AndHighHigh 28.19 (1.6%) 28.22 (1.7%)
> 0.1% ( -3% - 3%)
> LowSloppyPhrase 43.85 (2.0%) 43.91 (1.7%)
> 0.1% ( -3% - 3%)
> LowSpanNear 10.39 (2.9%) 10.41 (3.1%)
> 0.2% ( -5% - 6%)
> Wildcard 16.83 (3.1%) 16.85 (3.9%)
> 0.2% ( -6% - 7%)
> Respell 48.11 (2.9%) 48.19 (2.9%)
> 0.2% ( -5% - 6%)
> Fuzzy2 46.97 (2.6%) 47.10 (2.7%)
> 0.3% ( -4% - 5%)
> Prefix3 71.44 (3.8%) 71.66 (4.2%)
> 0.3% ( -7% - 8%)
> HighSloppyPhrase 3.41 (5.4%) 3.45 (4.7%)
> 1.0% ( -8% - 11%)
> LowTerm 308.11 (1.6%) 311.17 (3.9%)
> 1.0% ( -4% - 6%)
> IntNRQ 3.52 (7.7%) 3.57 (8.1%)
> 1.3% ( -13% - 18%)
> HighTerm 64.66 (4.3%) 65.53 (7.8%)
> 1.3% ( -10% - 13%)
> MedTerm 100.12 (3.2%) 101.53 (6.2%)
> 1.4% ( -7% - 11%)
> {noformat}
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