Atri Sharma created LUCENE-8794:
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Summary: Cost Based Slice Allocation Algorithm
Key: LUCENE-8794
URL: https://issues.apache.org/jira/browse/LUCENE-8794
Project: Lucene - Core
Issue Type: Improvement
Reporter: Atri Sharma
In https://issues.apache.org/jira/browse/LUCENE-8757, the idea of a cost based
and dynamically adjusting slice allocation algorithm was conceived. We should
ideally have a hard cap on the number of threads that can be consumed by a
single query, and have static cost factors associated with segments and assign
them to threads in a fair manner. We will also need to ensure that we end up
not assigning individual threads to small segments, or making more thread s
that needed (thread context switching could outweight benefits).
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