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  1. Core Server
  2. SERVER-16064

WT Performance Regression for update of hot document on 2014-11-10 builds

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical - P2 Critical - P2
    • None
    • 2.8.0-rc0
    • Performance
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      Mongo-sim table_scan workload. States 12 and 15. In Comments.

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      Mongo-sim table_scan workload. States 12 and 15. In Comments.

    Description

      Mongo-sim based microbenchmarks that update a hot document (i.e., all updating same document) show significant performance degradation today. 10 threads trying to update the same document.

      Throughput for the two tests
      12: 2489 2458 2386 419 375
      15: 45328 43026 43455 13261 5895
      12 is a table scan based, and 15 is index scan based. Last two numbers are for builds from today(4ab029e3 and c686f5a19 respectively). First three from last week.

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            Unassigned Unassigned
            david.daly@mongodb.com David Daly
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              Updated:
              Resolved: