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https://issues.apache.org/jira/browse/LUCENE-6504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14561025#comment-14561025
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Uwe Schindler commented on LUCENE-6504:
---------------------------------------

There are some unrelated changes in ByteBufferIndexInput: You removed the 
offset=0 implementation. Did you find out that this optimization for offset=0 
brings no additional performance?

> implement norms with random access API
> --------------------------------------
>
>                 Key: LUCENE-6504
>                 URL: https://issues.apache.org/jira/browse/LUCENE-6504
>             Project: Lucene - Core
>          Issue Type: Improvement
>            Reporter: Robert Muir
>         Attachments: LUCENE-6504.patch
>
>
> We added this api in LUCENE-5729 but we never explored implementing norms 
> with it. These are generally the largest consumer of heap memory and often a 
> real hassle for users.



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