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https://issues.apache.org/jira/browse/LUCENE-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638788#action_12638788
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Paul Elschot commented on LUCENE-1410:
--------------------------------------

The strange behaviour at 9 bits I reported earlier was due to a mistake in the 
test data. It contained only 31 integers (124 bytes, see posted listing), so 
the unrolled loop would never be called.

And another point to be done:
- change the decompression code generator to use an array get() from the buffer 
for 6 or more frame bits (see the Java 1/2 performance number numbers listed 
above.)

> PFOR implementation
> -------------------
>
>                 Key: LUCENE-1410
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1410
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Other
>            Reporter: Paul Elschot
>            Priority: Minor
>         Attachments: autogen.tgz, LUCENE-1410b.patch, LUCENE-1410c.patch, 
> TestPFor2.java, TestPFor2.java, TestPFor2.java
>
>   Original Estimate: 21840h
>  Remaining Estimate: 21840h
>
> Implementation of Patched Frame of Reference.

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