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Date: Fri, 2 Dec 2005 13:37:33 +0100 (CET)
From: "Volodymyr Bychkoviak (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-475)  RAMDirectory(Directory dir,
 boolean closeDir)  constructor uses memory inefficiently.
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    [ http://issues.apache.org/jira/browse/LUCENE-475?page=comments#action_12359150 ] 

Volodymyr Bychkoviak commented on LUCENE-475:
---------------------------------------------

agree

>  RAMDirectory(Directory dir, boolean closeDir)  constructor uses memory inefficiently.
> --------------------------------------------------------------------------------------
>
>          Key: LUCENE-475
>          URL: http://issues.apache.org/jira/browse/LUCENE-475
>      Project: Lucene - Java
>         Type: Improvement
>   Components: Store
>     Reporter: Volodymyr Bychkoviak
>  Attachments: RamDirectory.diff, RamDirectory2.diff
>
> recently I found that  RAMDirectory(Directory dir, boolean closeDir)  constructor uses memory inefficiently.
> files from source index are read entirely intro memory as single byte array which is after all is thrown away. And if I want to load my 200M optimized, compound format index to memory for faster search I should give JVM at least 400Mb memory limit. For larger indexes this can be an issue.
> I've attached patch how to solve this problem.

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