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Date: Sun, 12 Oct 2008 13:58:46 -0700 (PDT)
From: "Paul Elschot (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-1410) PFOR implementation
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    [ https://issues.apache.org/jira/browse/LUCENE-1410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12638900#action_12638900 ] 

Paul Elschot commented on LUCENE-1410:
--------------------------------------

So there's roughly a factor 2 between PFOR and BITS (which is actually just FOR i.e. PFOR without patches/exceptions). Meanwhile I've started working on speeding up the patching,  combined with always using a multiple of 4 bytes. This also involves changing the layout for the exceptions slightly, but it should allow faster patching and avoid the byte ordering problems mentioned before. It will take another while to finish.

> 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, TermQueryTests.tgz, TestPFor2.java, TestPFor2.java, TestPFor2.java
>
>   Original Estimate: 21840h
>  Remaining Estimate: 21840h
>
> Implementation of Patched Frame of Reference.

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