You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@lucene.apache.org by "Simon Willnauer (Assigned) (JIRA)" <ji...@apache.org> on 2011/12/14 15:31:30 UTC
[jira] [Assigned] (LUCENE-3648) Speed up SegementDocsEnum by making
it more friendly for JIT optimizations
[ https://issues.apache.org/jira/browse/LUCENE-3648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Simon Willnauer reassigned LUCENE-3648:
---------------------------------------
Assignee: Simon Willnauer
> Speed up SegementDocsEnum by making it more friendly for JIT optimizations
> --------------------------------------------------------------------------
>
> Key: LUCENE-3648
> URL: https://issues.apache.org/jira/browse/LUCENE-3648
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/codecs, core/search
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Assignee: Simon Willnauer
> Fix For: 4.0
>
> Attachments: LUCENE-3648.patch
>
>
> Since we moved the bulk reading into the codec ie. make all bulk reading codec private in LUCENE-3584 we have seen some performance [regression|http://people.apache.org/~mikemccand/lucenebench/Term.html] on different CPUs. I tried to optimize the implementation to make it more eligible for runtime optimizations, tried to make loops JIT friendly by moving out branches where I can, minimize member access in all loops, use final members where possible and specialize the two common cases With & Without LiveDocs.
> I will attache a patch and my benchmark results in a minute.
--
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-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org