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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2014/05/01 00:05:15 UTC

[jira] [Updated] (LUCENE-5634) Reuse TokenStream instances in Field

     [ https://issues.apache.org/jira/browse/LUCENE-5634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael McCandless updated LUCENE-5634:
---------------------------------------

    Attachment: LUCENE-5634.patch

> Reuse TokenStream instances in Field
> ------------------------------------
>
>                 Key: LUCENE-5634
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5634
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Michael McCandless
>             Fix For: 4.9, 5.0
>
>         Attachments: LUCENE-5634.patch
>
>
> If you don't reuse your Doc/Field instances (which is very expert: I
> suspect few apps do) then there's a lot of garbage created to index each
> StringField because we make a new StringTokenStream or
> NumericTokenStream (and their Attributes).
> We should be able to re-use these instances via a static
> ThreadLocal...



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