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Han Jiang commented on LUCENE-3892: ----------------------------------- Thank you Adrien! The BlockPacked PF also worked well on my computer :) {noformat} Task QPS base StdDev base QPS packedStdDev packed Pct diff AndHighHigh 122.57 3.01 123.90 2.49 -3% - 5% AndHighLow 2260.53 21.18 2273.77 55.09 -2% - 3% AndHighMed 328.01 8.18 329.31 11.36 -5% - 6% Fuzzy1 86.37 0.94 86.24 2.12 -3% - 3% Fuzzy2 31.40 0.46 31.22 0.64 -4% - 2% HighPhrase 9.09 0.51 9.15 0.40 -8% - 11% HighSloppyPhrase 5.30 0.25 5.34 0.08 -5% - 7% HighSpanNear 10.11 0.44 10.42 0.34 -4% - 11% HighTerm 179.43 7.26 178.96 5.70 -7% - 7% IntNRQ 61.87 3.79 60.59 4.31 -14% - 11% LowPhrase 41.23 1.54 42.97 1.32 -2% - 11% LowSloppyPhrase 62.83 2.11 68.23 0.99 3% - 14% LowSpanNear 81.28 2.74 85.74 2.67 -1% - 12% LowTerm 1763.70 29.21 1778.41 23.07 -2% - 3% MedPhrase 27.06 1.16 27.54 0.88 -5% - 9% MedSloppyPhrase 31.82 1.16 33.70 0.14 1% - 10% MedSpanNear 23.09 0.93 23.84 0.79 -4% - 11% MedTerm 659.09 22.65 671.54 19.79 -4% - 8% OrHighHigh 27.36 0.52 27.41 1.25 -6% - 6% OrHighLow 154.99 2.07 156.20 7.08 -5% - 6% OrHighMed 105.13 1.52 105.30 4.65 -5% - 6% PKLookup 210.64 6.95 217.57 2.08 0% - 7% Prefix3 170.22 6.22 166.80 4.18 -7% - 4% Respell 83.96 1.47 83.75 1.25 -3% - 3% Wildcard 155.08 4.31 155.31 3.12 -4% - 5% {noformat} > Add a useful intblock postings format (eg, FOR, PFOR, PFORDelta, > Simple9/16/64, etc.) > ------------------------------------------------------------------------------------- > > Key: LUCENE-3892 > URL: https://issues.apache.org/jira/browse/LUCENE-3892 > Project: Lucene - Core > Issue Type: Improvement > Reporter: Michael McCandless > Labels: gsoc2012, lucene-gsoc-12 > Fix For: 4.1 > > Attachments: LUCENE-3892-BlockTermScorer.patch, > LUCENE-3892-blockFor&hardcode(base).patch, > LUCENE-3892-blockFor&packedecoder(comp).patch, > LUCENE-3892-blockFor-with-packedints-decoder.patch, > LUCENE-3892-blockFor-with-packedints-decoder.patch, > LUCENE-3892-blockFor-with-packedints.patch, LUCENE-3892-bulkVInt.patch, > LUCENE-3892-direct-IntBuffer.patch, LUCENE-3892-for&pfor-with-javadoc.patch, > LUCENE-3892-handle_open_files.patch, LUCENE-3892-non-specialized.patch, > LUCENE-3892-pfor-compress-iterate-numbits.patch, > LUCENE-3892-pfor-compress-slow-estimate.patch, LUCENE-3892_for_byte[].patch, > LUCENE-3892_for_int[].patch, LUCENE-3892_for_unfold_method.patch, > LUCENE-3892_pfor_unfold_method.patch, LUCENE-3892_pulsing_support.patch, > LUCENE-3892_settings.patch, LUCENE-3892_settings.patch > > > On the flex branch we explored a number of possible intblock > encodings, but for whatever reason never brought them to completion. > There are still a number of issues opened with patches in different > states. > Initial results (based on prototype) were excellent (see > http://blog.mikemccandless.com/2010/08/lucene-performance-with-pfordelta-codec.html > ). > I think this would make a good GSoC project. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org