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https://issues.apache.org/jira/browse/LUCENE-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741408#action_12741408
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Mark Miller commented on LUCENE-1796:
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Yes indeed, its very close now.
The filters are:
<tokenizer class="solr.WhitespaceTokenizerFactory"/>
<filter class="solr.WordDelimiterFilterFactory" generateWordParts="1"
generateNumberParts="0" catenateWords="0" catenateNumbers="0" catenateAll="0"/>
<filter class="solr.LowerCaseFilterFactory"/>
So I guess its 1 and 1? Lowercase comes from Lucene and implements increment,
but WordDelim just does next. The other hotspot was (though much less of one)
TokenStream<init>(AttributeSource) - if implementing increment relieves that,
it might be the same speed after.
> Speed up repeated TokenStream init
> ----------------------------------
>
> Key: LUCENE-1796
> URL: https://issues.apache.org/jira/browse/LUCENE-1796
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Mark Miller
> Assignee: Uwe Schindler
> Fix For: 2.9
>
> Attachments: LUCENE-1796.patch, LUCENE-1796.patch
>
>
> by caching isMethodOverridden results
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