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Yonik Seeley commented on SOLR-114: ----------------------------------- The performance tests are commented out in the TestDocSet test... I had other changes in my tree related to negative queries and only selected the two source files for diffs. I had quickly tested Java5 to make sure it was still faster in all instances, and it was. Numbers were about the same, some speedups larger and some smaller than Java6. > HashDocSet new hash(), andNot(), union() > ---------------------------------------- > > Key: SOLR-114 > URL: https://issues.apache.org/jira/browse/SOLR-114 > Project: Solr > Issue Type: Improvement > Components: search > Reporter: Yonik Seeley > Attachments: hashdocset.patch > > > Looking at the negative filters stuff, I realized that andNot() had no > optimized implementation for HashDocSet, so I implemented that and union(). > While I was in there, I did a re-analysis of hash collision rates and came up > with a cool new hash method that goes directly into a linear scan and is > hence simpler, faster, and has fewer collisions. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: https://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira