jimczi commented on issue #854: Shared PQ Based Early Termination for Concurrent Search URL: https://github.com/apache/lucene-solr/pull/854#issuecomment-530515005 > RE: synchronization, what are your thoughts on using a global shared array where each collector publishes its bottom value vs message passing? Sure that's a good way to keep track of the maximum minimum score without synchronization. However I think only benchmark can reveal the cost of this so my main concern is the change in the API that is required to share the minimum score globally. If we can come up with an approach that keeps the current top score docs collector simple and contained but isn't optimized in terms of synchronization I'd favor simplicity unless we have clear evidence in benchmarks that we can do better ;).
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