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https://issues.apache.org/jira/browse/LUCENE-3509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133760#comment-13133760
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Martijn van Groningen commented on LUCENE-3509:
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bq. So I think it would be best if this was only a parameter to this particular
implementation... otherwise we end out with a ton of options across all
possible implementations, which won't make a lot of sense at all.
Makes sense if you write it down like that :)
I think it should be an option inside DefaultDocValuesConsumer (since this
creates the writer) that defaults to true and if users want to change this
behaviour they will need to change their codec.
> Add settings to IWC to optimize IDV indices for CPU or RAM respectivly
> ----------------------------------------------------------------------
>
> Key: LUCENE-3509
> URL: https://issues.apache.org/jira/browse/LUCENE-3509
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/index
> Affects Versions: 4.0
> Reporter: Simon Willnauer
> Priority: Minor
> Fix For: 4.0
>
> Attachments: LUCENE-3509.patch
>
>
> spinnoff from LUCENE-3496 - we are seeing much better performance if required
> bits for PackedInts are rounded up to a 8/16/32/64. We should add this option
> to IWC and default to round up ie. more RAM & faster lookups.
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