[jira] [Created] (LUCENE-10067) investigate 6/23/2001 -> 6/24/2001 drop in facets perf

["Robert Muir (Jira)" <ji...@apache.org>]

Robert Muir created LUCENE-10067:
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             Summary: investigate 6/23/2001 -> 6/24/2001 drop in facets perf
                 Key: LUCENE-10067
                 URL: https://issues.apache.org/jira/browse/LUCENE-10067
             Project: Lucene - Core
          Issue Type: Task
            Reporter: Robert Muir


Just looking at perf graph (and recent gains from LUCENE-5309), it is unclear why performance dropped on that date, and if we paved new, better performance, or instead just regained some lost-ground only in the single value case?

Example:
https://home.apache.org/~mikemccand/lucenebench/BrowseDayOfYearSSDVFacets.html

after some debugging, it looks like LUCENE-9613 change may be responsible. It was the only relevant change between the 6/23 and 6/24 benchmarks. 



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