[ https://issues.apache.org/jira/browse/LUCENE-4098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless resolved LUCENE-4098. ---------------------------------------- Resolution: Fixed Fix Version/s: (was: 4.1) 5.0 4.0 Thanks Adrien! > Efficient bulk operations for packed integer arrays > --------------------------------------------------- > > Key: LUCENE-4098 > URL: https://issues.apache.org/jira/browse/LUCENE-4098 > Project: Lucene - Java > Issue Type: Improvement > Components: core/other > Reporter: Adrien Grand > Assignee: Michael McCandless > Priority: Minor > Fix For: 4.0, 5.0 > > Attachments: LUCENE-4098.patch, LUCENE-4098.patch, LUCENE-4098.patch > > > There are some places in Lucene code that {iterate over,set} ranges of values > of a packed integer array. Because bit-packing implementations (Packed*) tend > be slower than direct implementations, this can take a lot of time. > For example, under some scenarii, GrowableWriter can take most of its > (averaged) {{set}} time in resizing operations. > However, some bit-packing schemes, such as the one that is used by > {{Packed64SingleBlock*}}, allow to implement efficient bulk operations such > as get/set/fill. Implementing these bulk operations in > {{PackedInts.{Reader,Mutable}}} and using them across other components > instead of their single-value counterpart could help improve performance. -- 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