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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2735) First Cut at GroupVarInt with FixedIntBlockIndexInput / Output
Date Wed, 03 Nov 2010 16:43:24 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927896#action_12927896
] 

Michael McCandless commented on LUCENE-2735:
--------------------------------------------

OK w/ the latest patch all tests pass for me!  Great :)

> First Cut at GroupVarInt with FixedIntBlockIndexInput / Output
> --------------------------------------------------------------
>
>                 Key: LUCENE-2735
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2735
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>    Affects Versions: 4.0
>            Reporter: Simon Willnauer
>            Assignee: Simon Willnauer
>            Priority: Minor
>             Fix For: 4.0
>
>         Attachments: LUCENE-2735.patch, LUCENE-2735.patch, LUCENE-2735.patch, LUCENE-2735_alt.patch
>
>
> I have hacked together a FixedIntBlockIndex impl with Group VarInt encoding - this does
way worse than standard codec in benchmarks but I guess that is mainly due to the FixedIntBlockIndex
limitations. Once LUCENE-2723 is in / or builds with trunk again I will update and run some
tests. The isolated microbenchmark shows that there could be improvements over vint even in
java though and I am sure we can make it faster impl. wise.

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