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From "Paul Elschot (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (LUCENE-1410) PFOR implementation
Date Mon, 13 Oct 2008 21:18:44 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12639195#action_12639195
] 

paul.elschot@xs4all.nl edited comment on LUCENE-1410 at 10/13/08 2:17 PM:
----------------------------------------------------------------

1410d patch: as 1410c, with the following further changes:
- moved exceptions to their natural borders, 
- unrolled exception patching code,
- some more testcases for exceptions,
- a specialized version for "decompressing" with 32 frame bits,
- all other frame decompression is left to generated code (not contained in the patch),
- compressed and decompressed sizes are now reported in numbers of integers,
- also contains an adapted version of TestPFor2.

This should diminish the difference in performance between PFOR and BITS.

      was (Author: paul.elschot@xs4all.nl):
    1410d patch: as 1410c, with the following further changes:
- moved exceptions to their natural borders, 
- unrolled exception patching code,
- some more testcases for exceptions,
- a specialized version for "decompressing" with 32 frame bits,
- all other frame decompression is left to generated code (not contained in the patch),
- compressed and decompressed sizes are now reported in numbers of integers,
- also contains an adapted version of TestPFor2.

This should diminish the difference in performance between PFOR and BITS (which is actually
just FOR, unpatched Frame Of Reference.).
  
> 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, LUCENE-1410d.patch,
TermQueryTests.tgz, TestPFor2.java, TestPFor2.java, TestPFor2.java
>
>   Original Estimate: 21840h
>  Remaining Estimate: 21840h
>
> Implementation of Patched Frame of Reference.

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