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From "Sam Halliday (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (VFS-593) duplicated Strings inside WindowsLocalFile
Date Mon, 01 Feb 2016 21:56:39 GMT

    [ https://issues.apache.org/jira/browse/VFS-593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15127126#comment-15127126
] 

Sam Halliday commented on VFS-593:
----------------------------------

I did a heapdump of a very small process, the wastage here is only a few MB but this scales
https://github.com/ensime/ensime-server/issues/1257

> duplicated Strings inside WindowsLocalFile
> ------------------------------------------
>
>                 Key: VFS-593
>                 URL: https://issues.apache.org/jira/browse/VFS-593
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Sam Halliday
>
> I did a YourKit analysis of a heapdump when running ENSIME, which uses VFS2, and I found
several GB (25%) of the heap was wasted on duplicated strings within VFS2.
> This could be averted by using `.intern()` on Strings that represent paths.



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