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