lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LUCENE-6325) improve perf and memory of FieldInfos.fieldInfo(int)
Date Fri, 26 Jun 2015 16:03:05 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-6325?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-6325.
----------------------------------------
       Resolution: Fixed
    Fix Version/s:     (was: 5.2)
                   5.3

Thanks [~rcmuir]!

> improve perf and memory of FieldInfos.fieldInfo(int)
> ----------------------------------------------------
>
>                 Key: LUCENE-6325
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6325
>             Project: Lucene - Core
>          Issue Type: Sub-task
>            Reporter: Robert Muir
>            Assignee: Michael McCandless
>             Fix For: 5.3, Trunk
>
>         Attachments: LUCENE-6325.patch, LUCENE-6325.patch
>
>
> FieldInfos.fieldInfo(int) looks up a field by number and returns its FieldInfo.
> This method is called per-field-per-doc in things like stored fields and vectors readers.
> Unfortunately, today this method is always backed by a TreeMap. In most cases a simple
array is better, its faster and uses less memory.
> These changes made significant difference in stored fields checkindex time with my test
index (had only 10 fields). Maybe it helps merge as well.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message