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https://issues.apache.org/jira/browse/LUCENE-1125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12557735#action_12557735
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Michael McCandless commented on LUCENE-1125:
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{quote}
OK, why don't you commit this today. Meanwhile I'll look into the
small issues Hoss pointed out and then build RC2 end of today.
{quote}
OK, will do, thanks!
> Excessive Arrays.fill(0) in DocumentsWriter drastically slows down small docs
> (3.9X slowdown!)
> ----------------------------------------------------------------------------------------------
>
> Key: LUCENE-1125
> URL: https://issues.apache.org/jira/browse/LUCENE-1125
> Project: Lucene - Java
> Issue Type: Bug
> Components: Index
> Affects Versions: 2.3
> Reporter: Michael McCandless
> Assignee: Michael McCandless
> Fix For: 2.3
>
> Attachments: LUCENE-1125.patch
>
>
> I've been doing some "final" performance testing of 2.3RC1 and
> uncovered a fairly serious bug that adds a large fixed CPU cost when
> documents have any term vector enabled fields.
> The bug does not affect correctness, just performance.
> Basically, for every document, we were calling Arrays.fill(0) on a
> large (32 KB) byte array when in fact we only needed to zero a small
> part of it. This only happens if term vectors are turned on, and is
> especially devastating for small documents.
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