Adrien Grand created LUCENE-4098:
------------------------------------
Summary: 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
Priority: Minor
Fix For: 4.1
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
