[jira] Updated: (LUCENE-2098) make BaseCharFilter more efficient in performance

["Robert Muir (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENE-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Muir updated LUCENE-2098:
--------------------------------

    Attachment: LUCENE-2098.patch

ok, i think this one is fixed.

i ran a loop with the example doc in the tests and tested both removing the object creation and switching to binary search, both help.

I'd like to commit to trunk and 3x tomorrow.

> make BaseCharFilter more efficient in performance
> -------------------------------------------------
>
>                 Key: LUCENE-2098
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2098
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 3.1
>            Reporter: Koji Sekiguchi
>            Priority: Minor
>         Attachments: LUCENE-2098.patch, LUCENE-2098.patch
>
>
> Performance degradation in Solr 1.4 was reported. See:
> http://www.lucidimagination.com/search/document/43c4bdaf5c9ec98d/html_stripping_slower_in_solr_1_4
> The inefficiency has been pointed out in BaseCharFilter javadoc by Mike:
> {panel}
> NOTE: This class is not particularly efficient. For example, a new class instance is created for every call to addOffCorrectMap(int, int), which is then appended to a private list. 
> {panel}

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