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Posted to commits@cassandra.apache.org by "Blake Eggleston (Jira)" <ji...@apache.org> on 2019/10/30 22:37:00 UTC

[jira] [Created] (CASSANDRA-15392) Pool Merge Iterators

Blake Eggleston created CASSANDRA-15392:
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             Summary: Pool Merge Iterators
                 Key: CASSANDRA-15392
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15392
             Project: Cassandra
          Issue Type: Sub-task
          Components: Local/Compaction
            Reporter: Blake Eggleston
            Assignee: Blake Eggleston


By pooling merge iterators, instead of creating new ones each time we need them, we can reduce garbage on the compaction and read paths under relevant workloads by ~4% in many cases.



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