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  1. Cassandra
  2. CASSANDRA-15387 Reduce compaction & local read path garbage
  3. CASSANDRA-15390

Avoid unnecessary collection/iterator allocations during btree construction

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    Details

    • Type: Sub-task
    • Status: Changes Suggested
    • Priority: Normal
    • Resolution: Unresolved
    • Fix Version/s: 4.0
    • Component/s: Local/Compaction
    • Labels:
      None
    • Change Category:
      Performance
    • Complexity:
      Normal
    • Platform:
      All
    • Impacts:
      None
    • Test and Documentation Plan:
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      Description

      A heavily used btree builder path does a lot of unnecessary conversions to and from collections and iterators. Adding dedicated support for Object[] reduces compaction garbage by up to 8.3%

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            • Assignee:
              bdeggleston Blake Eggleston
              Reporter:
              bdeggleston Blake Eggleston
              Authors:
              Blake Eggleston
              Reviewers:
              Benedict Elliott Smith
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              Dates

              • Created:
                Updated: