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https://issues.apache.org/jira/browse/LUCENE-550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Karl Wettin updated LUCENE-550:
-------------------------------
Attachment: LUCENE-550_20071021_no_core_changes.txt
In this patch:
* Replaced all List<T> with T[] as Array.binarySearch is 20% faster than
Collections.binarySearch.
* Ad hoc binarySearch using variable pivot increase speed of TermDocs.skipTo
20%-400%, courtesy of Olivier Chafik.
* Default InstantiatedWriter.mergeFactor changed from 1 to 2500 ;-)
> InstantiatedIndex - faster but memory consuming index
> -----------------------------------------------------
>
> Key: LUCENE-550
> URL: https://issues.apache.org/jira/browse/LUCENE-550
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Affects Versions: 2.0.0
> Reporter: Karl Wettin
> Assignee: Grant Ingersoll
> Attachments: HitCollectionBench.jpg, lucene-550.jpg,
> LUCENE-550_20070804_no_core_changes.txt,
> LUCENE-550_20070808_no_core_changes.txt,
> LUCENE-550_20070817_no_core_changes.txt,
> LUCENE-550_20070928_no_core_changes.txt,
> LUCENE-550_20071008_no_core_changes.txt,
> LUCENE-550_20071017_no_core_changes.txt,
> LUCENE-550_20071019_no_core_changes.txt,
> LUCENE-550_20071021_no_core_changes.txt, test-reports.zip, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2
>
>
> An non file centrinc all in memory index. Consumes some 2x the memory of a
> RAMDirectory (in a term satured index) but is between 3x-60x faster depending
> on application and how one counts. Average query is about 8x faster.
> IndexWriter and IndexModifier have been realized in InterfaceIndexWriter and
> InterfaceIndexModifier.
> InstantiatedIndex is wrapped in a new top layer index facade (class Index)
> that comes with factory methods for writers, readers and searchers for unison
> index handeling. There are decorators with notification handling that can be
> used for automatically syncronizing searchers on updates, et.c.
> Index also comes with FS/RAMDirectory implementation.
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