Atri Sharma created LUCENE-8757:
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Summary: Better Segment To Thread Mapping Algorithm
Key: LUCENE-8757
URL: https://issues.apache.org/jira/browse/LUCENE-8757
Project: Lucene - Core
Issue Type: Improvement
Reporter: Atri Sharma
The current segments to threads allocation algorithm always allocates one
thread per segment. This is detrimental to performance in case of skew in
segment sizes since small segments also get their dedicated thread. This can
lead to performance degradation due to context switching overheads.
A better algorithm which is cognizant of size skew would have better
performance for realistic scenarios
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