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https://issues.apache.org/jira/browse/LUCENE-2556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Adriano Crestani updated LUCENE-2556:
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Attachment: lucene_2556_adriano_crestani_07_23_2010.patch
This patch optimizes the cloning of the CharTermAttributeImpl internal buffer.
It keeps using clone() to clone the internal buffer when
CharTermAttribute.length() is at least 150 and at least 75% and of the
internal buffer length, otherwise, it uses System.arrayCopy(...) to clone it
using CharTermAttribute.length() as the new internal buffer size.
It's performing the optimization, because in some scenarios, like cloning long
arrays, clone() is usually faster than System.arrayCopy(...).
> CharTermAttribute cloning memory consumption
> --------------------------------------------
>
> Key: LUCENE-2556
> URL: https://issues.apache.org/jira/browse/LUCENE-2556
> Project: Lucene - Java
> Issue Type: Improvement
> Components: Analysis
> Affects Versions: 3.0.2
> Reporter: Adriano Crestani
> Priority: Minor
> Fix For: 3.1
>
> Attachments: CharTermAttributeMemoryConsumptionDemo.java,
> lucene_2556_adriano_crestani_07_23_2010.patch
>
>
> The memory consumption problem with cloning a CharTermAttributeImpl object
> was raised on thread http://markmail.org/thread/bybuerugbk5w2u6z
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