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Adrien Grand commented on LUCENE-2750: -------------------------------------- FYI I ran his benchmark and the thing is that the version of kamikaze he is using decompresses ints one by one instead of using routines that decompress a full block in one go. Here is the relevant part of the kamikaze code base: https://github.com/linkedin/kamikaze/blob/master/src/main/java/com/kamikaze/pfordelta/PForDelta.java#L114 decompressBBitSlotsWithHardCodes is commented out in favor of decompressBBitSlots. > add Kamikaze 3.0.1 into Lucene > ------------------------------ > > Key: LUCENE-2750 > URL: https://issues.apache.org/jira/browse/LUCENE-2750 > Project: Lucene - Core > Issue Type: Sub-task > Components: modules/other > Reporter: hao yan > Assignee: Adrien Grand > Original Estimate: 336h > Remaining Estimate: 336h > > Kamikaze 3.0.1 is the updated version of Kamikaze 2.0.0. It can achieve > significantly better performance then Kamikaze 2.0.0 in terms of both > compressed size and decompression speed. The main difference between the two > versions is Kamikaze 3.0.x uses the much more efficient implementation of the > PForDelta compression algorithm. My goal is to integrate the highly efficient > PForDelta implementation into Lucene Codec. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators 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