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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2825) FSDirectory.open should return MMap on 64-bit Solaris
Date Mon, 20 Dec 2010 17:30:01 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973264#action_12973264
] 

Robert Muir commented on LUCENE-2825:
-------------------------------------

bq. There could be a number of things that could make this very OS dependent:

I agree, we should test any OS before changing any defaults.

In the Solaris case its clear that mmap is better for our purposes though (as to exactly why,
no idea)


> FSDirectory.open should return MMap on 64-bit Solaris
> -----------------------------------------------------
>
>                 Key: LUCENE-2825
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2825
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Store
>            Reporter: Robert Muir
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2825.patch
>
>
> MMap is ~ 30% faster than NIOFS on this platform.

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