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https://issues.apache.org/jira/browse/LUCENE-10014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17399731#comment-17399731
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ASF subversion and git services commented on LUCENE-10014:
----------------------------------------------------------
Commit 19e5c00a4fff111100768f50ece12015196e15e0 in lucene's branch
refs/heads/main from Michael McCandless
[ https://gitbox.apache.org/repos/asf?p=lucene.git;h=19e5c00 ]
LUCENE-10014: fix performance bug: when writing doc values with block GCD
compression we were unnecessarily wasting index storage by failing to take
fully advantage of the GCD compression
> docvalue writeBlock gcd encode improve
> --------------------------------------
>
> Key: LUCENE-10014
> URL: https://issues.apache.org/jira/browse/LUCENE-10014
> Project: Lucene - Core
> Issue Type: Improvement
> Components: core/codecs
> Reporter: weizijun
> Priority: Major
> Attachments: LUCENE-10014.patch
>
>
> Lucene90DocValuesConsumer.writeBlock calculate bitsPerValue as:
> {code:java}
> final int bitsPerValue = DirectWriter.unsignedBitsRequired(max - min);
> {code}
> it can use gcd in this place as:
> {code:java}
> (max - min) / gcd
> {code}
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