Robert Muir created LUCENE-9795:
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Summary: investigate large checkindex regression in nightly
benchmarks
Key: LUCENE-9795
URL: https://issues.apache.org/jira/browse/LUCENE-9795
Project: Lucene - Core
Issue Type: Improvement
Reporter: Robert Muir
Attachments: Screen_Shot_2021-02-21_at_09.17.53.png
In the nightly benchmark, checkindex times increased more than 4x on the 2/16
datapoint
Looking at the commits on 2/15, most obvious thing to look into is docvalues
terms dict compression: LUCENE-9663
Will try to pinpoint it more, my concern is some perf bug such as every single
term causing decompression of the whole block repeatedly (missing
seek-within-block opto?)
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