[ http://issues.apache.org/jira/browse/SOLR-15?page=comments#action_12383274 ]
Yonik Seeley commented on SOLR-15: ---------------------------------- My Home Machine: Pentium 4, HyperThreaded, dual channel memory JVM: Java 1.5_06 -server -Xbatch -Xmx64M BitSet size = 1,000,000 Relative Performance, java.util.BitSet time divided by OpenBitSet time: For 50% (500,000) bits set cardinality 3.36 ntersect_count 3.96 union 1.44 nextSetBit 1.46 get 1.99 iterator 1.58 For 1% (10,000) bits set cardinality 3.31 ntersect_count 3.90 nextSetBit 1.04 iterator 0.99 > OpenBitSet > ---------- > > Key: SOLR-15 > URL: http://issues.apache.org/jira/browse/SOLR-15 > Project: Solr > Type: New Feature > Reporter: Yonik Seeley > Assignee: Yonik Seeley > Attachments: BitSetIterator.java, BitSetPerf.java, OpenBitSet.java, > TestOpenBitSet.java > > OpenBitSet, a faster, and open implementation of a set of bits. > There should be enough implemented such that it could be used for filters in > Solr and/or Lucene. > Home should probably be solr.util or lucene.util if it's deemed desirable. -- 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
