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https://issues.apache.org/jira/browse/LUCENE-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13693046#comment-13693046
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Robert Muir commented on LUCENE-5077:
-------------------------------------
Thanks for benchmarking Adrien. As you know, the norms are a stupid hotspot
because of how we score (we decode multiple times for the same document).
One thing I was curious about too was the impact on BooleanScorer2 (versus
BS1).
I guess i really wish we fixed luceneutil to display information for both
in-order and out-of-order scoring always :)
> make it easier to use compressed norms
> --------------------------------------
>
> Key: LUCENE-5077
> URL: https://issues.apache.org/jira/browse/LUCENE-5077
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Michael McCandless
> Fix For: 5.0, 4.4
>
> Attachments: LUCENE-5077.patch
>
>
> Lucene42DVConsumer's ctor takes acceptableOverheadRatio, so that you can
> tradeoff time/space, and we pass PackedInts.FASTEST so we always use 8 bits
> per value.
> But the class is package private, so if I want to make my own NormsFormat and
> pass e.g. PackedInts.COMPACT, I can't ... I think we should make this class
> public / @experimental?
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