[ http://issues.apache.org/jira/browse/LUCENE-443?page=comments#action_12436453 ] Paul Elschot commented on LUCENE-443: -------------------------------------
I just overlooked the grant by Abdul to the ASF. > ConjunctionScorer tune-up > ------------------------- > > Key: LUCENE-443 > URL: http://issues.apache.org/jira/browse/LUCENE-443 > Project: Lucene - Java > Issue Type: Bug > Components: Search > Affects Versions: 1.9 > Environment: Linux, Java 1.5, Large Index with 4 million items and > some heavily nested boolean queries > Reporter: Abdul Chaudhry > Attachments: Conjunction20060921.patch, ConjunctionScorer.java, > ConjunctionScorer.java > > > I just recently ran a load test on the latest code from lucene , which is > using a new BooleanScore and noticed the ConjunctionScorer was crunching > through objects , especially while sorting as part of the skipTo call. It > turns a linked list into an array, sorts the array, then converts the array > back to a linked list for further processing by the scoring engines below. > 'm not sure if anyone else is experiencing this as I have a very large index > (> 4 million items) and I am issuing some heavily nested queries > Anyway, I decide to change the link list into an array and use a first and > last marker to "simulate" a linked list. > This scaled much better during my load test as the java gargbage collector > was less - umm - virulent -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
