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https://issues.apache.org/jira/browse/LUCENE-5127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13720856#comment-13720856
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Adrien Grand commented on LUCENE-5127:
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This is a very nice cleanup! In FixedGapTermsIndexWriter, I think we could
improve the buffering of offsets and addresses by directly buffering into a
MonotonicBlockPackedWriter over a RamOutputStream, and then copy the raw
content of the RamOutputStream to the IndexOutput? This would avoid an extra
encoding/decoding step.
> FixedGapTermsIndex should use monotonic compression
> ---------------------------------------------------
>
> Key: LUCENE-5127
> URL: https://issues.apache.org/jira/browse/LUCENE-5127
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Robert Muir
> Attachments: LUCENE-5127.patch, LUCENE-5127.patch, LUCENE-5127.patch
>
>
> for the addresses in the big in-memory byte[] and disk blocks, we could save
> a good deal of RAM here.
> I think this codec just never got upgraded when we added these new packed
> improvements, but it might be interesting to try to use for the terms data of
> sorted/sortedset DV implementations.
> patch works, but has nocommits and currently ignores the divisor. The
> annoying problem there being that we have the shared interface with
> "get(int)" for PackedInts.Mutable/Reader, but no equivalent base class for
> monotonics get(long)...
> Still its enough that we could benchmark/compare for now.
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