msokolov commented on issue #1351: LUCENE-9280: Collectors to skip noncompetitive documents URL: https://github.com/apache/lucene-solr/pull/1351#issuecomment-604683807 That 3x speedup is very nice! My experience with these benchmarks is they can be pretty noisy, maybe accounting for the regressions? I tend to increase comp.taskRepeatCount = 500. I'd also be interested to see how this optimization fares for higher values of topN - I think the default is 10, but you can edit in benchUtil.py. You did not sort the index right (eg: comp.newIndex('baseline', sourceData, facets=facets, indexSort='lastModNDV:long', addDVFields=True)? It would be interesting to see if this has the same impact for sorted index, large N, especially running with an executor (.competitor(...concurrentSearchers = True ).
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