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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (LUCENE-3198) Change default Directory impl on 64bit linux to MMap
Date Tue, 14 Jun 2011 15:45:47 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael McCandless resolved LUCENE-3198.
----------------------------------------

    Resolution: Fixed

OK I cutover just Linux, 64 bit, when unmap is available.

We can open new issues for other platforms when we have some data that MMap is better...

> Change default Directory impl on 64bit linux to MMap
> ----------------------------------------------------
>
>                 Key: LUCENE-3198
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3198
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: core/store
>            Reporter: Michael McCandless
>             Fix For: 3.3, 4.0
>
>
> Consistently in my NRT testing on Fedora 13 Linux, 64 bit JVM (Oracle 1.6.0_21) I see
MMapDir getting better search and merge performance when compared to NIOFSDir.
> I think we should fix the default.

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