Tyler Hobbs created CASSANDRA-12153:
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Summary: RestrictionSet.hasIN() is slow
Key: CASSANDRA-12153
URL: https://issues.apache.org/jira/browse/CASSANDRA-12153
Project: Cassandra
Issue Type: Improvement
Components: Coordination
Reporter: Tyler Hobbs
Assignee: Tyler Hobbs
Priority: Minor
Fix For: 3.x
While profiling local in-memory reads for CASSANDRA-10993, I noticed that
{{RestrictionSet.hasIN()}} was responsible for about 1% of the time. It looks
like it's mostly slow because it creates a new LinkedHashSet (which is
expensive to init) and uses streams. This can be replaced with a simple for
loop.
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