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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-4577) Nuke TFIDFSim's cache
Date Wed, 28 Nov 2012 15:36:59 GMT
Robert Muir created LUCENE-4577:
-----------------------------------

             Summary: Nuke TFIDFSim's cache
                 Key: LUCENE-4577
                 URL: https://issues.apache.org/jira/browse/LUCENE-4577
             Project: Lucene - Core
          Issue Type: Bug
            Reporter: Robert Muir


This is the old termscorer cache. 

This helps nothing, and maybe hurts: I removed it and here are the results:
{noformat}
Chart saved to out.png... (wd: /home/rmuir/workspace/lucene-trunk/lucene/benchmark)
                    Task    QPS base      StdDev   QPS patch      StdDev                Pct
diff
             TermGroup1M       52.87      (2.2%)       52.62      (2.4%)   -0.5% (  -4% -
   4%)
              AndHighMed       34.82      (2.8%)       34.70      (3.6%)   -0.3% (  -6% -
   6%)
                SpanNear        6.28      (5.3%)        6.26      (3.9%)   -0.2% (  -8% -
   9%)
                  IntNRQ       13.24     (11.0%)       13.24      (9.9%)    0.0% ( -18% -
  23%)
                 Prefix3       42.19      (7.6%)       42.21      (7.0%)    0.1% ( -13% -
  15%)
                Wildcard       36.90      (6.8%)       37.02      (5.9%)    0.3% ( -11% -
  13%)
             AndHighHigh       25.68      (4.5%)       25.79      (3.2%)    0.5% (  -6% -
   8%)
                  Phrase        9.28      (4.7%)        9.35      (4.4%)    0.7% (  -8% -
  10%)
            TermBGroup1M       45.76      (6.3%)       46.10      (3.2%)    0.7% (  -8% -
  10%)
            SloppyPhrase       10.25      (3.9%)       10.33      (4.4%)    0.8% (  -7% -
   9%)
              OrHighHigh        8.87      (6.4%)        8.97      (6.7%)    1.1% ( -11% -
  15%)
                  Fuzzy1       70.28      (4.3%)       71.24      (7.1%)    1.4% (  -9% -
  13%)
               OrHighMed       10.70      (7.0%)       10.86      (6.4%)    1.5% ( -11% -
  15%)
                  Fuzzy2       27.79      (6.1%)       28.31      (5.1%)    1.9% (  -8% -
  13%)
                 Respell       71.72      (6.8%)       73.39      (3.7%)    2.3% (  -7% -
  13%)
                    Term      209.49      (4.4%)      214.58      (3.7%)    2.4% (  -5% -
  11%)
          TermBGroup1M1P        7.10      (5.1%)        7.48      (7.8%)    5.3% (  -7% -
  19%)
{noformat}

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