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Posted to dev@lucene.apache.org by "David Smiley (JIRA)" <ji...@apache.org> on 2014/12/18 04:21:15 UTC

[jira] [Commented] (LUCENE-937) Make CachingTokenFilter faster

    [ https://issues.apache.org/jira/browse/LUCENE-937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251101#comment-14251101 ] 

David Smiley commented on LUCENE-937:
-------------------------------------

In LUCENE-6033 I swapped LL for ArrayList purely for reduced memory usage (fewer objects).

> Make CachingTokenFilter faster
> ------------------------------
>
>                 Key: LUCENE-937
>                 URL: https://issues.apache.org/jira/browse/LUCENE-937
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Mark Miller
>            Priority: Minor
>         Attachments: CachingTokenFilter.patch, CachingTokenFilterRev2.patch
>
>
> The LinkedList used by CachingTokenFilter is accessed using the get() method. Direct access on a LinkedList is slow and an Iterator should be used instead. For more than a handful of tokens, the difference in speed grows exponentially.



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