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https://issues.apache.org/jira/browse/LUCENE-6233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14314391#comment-14314391
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Michael McCandless commented on LUCENE-6233:
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This was introduced with LUCENE-5610
I'll fix the nightly Lucene benchmark to plot CheckIndex time ... we could have
spotted this performance regression.
> CheckIndex is dog slow when checking term vectors
> -------------------------------------------------
>
> Key: LUCENE-6233
> URL: https://issues.apache.org/jira/browse/LUCENE-6233
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Michael McCandless
> Assignee: Michael McCandless
>
> I'm working on a test that creates a biggish index and I noticed the
> CheckIndex takes a surprisingly long time to check term vectors.
> I profiled it and uncovered that we spend a lot of time (not sure this
> explains all of it) in Terms.getMin/getMax. Since
> CompressingTermVectorsReader doesn't impl these methods efficiently (which is
> fine), we fallback to super's impl, which does a digit-by-digit binary search
> using seekCeil.
> But for TVs this sometimes results in a linear scan.
> I think CheckIndex should not check Terms.getMin/Max for TVs?
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