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https://issues.apache.org/jira/browse/LUCENE-4322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440335#comment-13440335
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Adrien Grand commented on LUCENE-4322:
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bq. All of this was removed in core. 4.0 should be 1MB.
Even when removing the whole oal.util.packed package, the JAR size is still
2.1MB.
bq. We certainly dont need optimizations for bits per value > anything like 4
or 5 I think. 32 is outlandish, just use an int[].
These classes are not only used to store large int arrays in memory but also to
perform encoding/decoding of short sequences, such as in BlockPF. If we want
BlockPF to remain fast, 5 is probably too low. Mike tested BlockPF with an
unspecialized decoder and it showed a great performance loss :
https://issues.apache.org/jira/browse/LUCENE-3892?focusedCommentId=13431491&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13431491
> Can we make oal.util.packed.BulkOperation* smaller?
> ---------------------------------------------------
>
> Key: LUCENE-4322
> URL: https://issues.apache.org/jira/browse/LUCENE-4322
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Fix For: 5.0, 4.0
>
>
> These source files add up to a lot of sources ... it caused problems when
> compiling under Maven and InteliJ.
> I committed a change to make separates files, but in aggregate this is still
> a lot ...
> EG maybe we don't need to specialize encode?
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