Throughput drop in wtperf evict Jenkins tests

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
    • WT2.9.0
    • Affects Version/s: None
    • Component/s: None
    • None
    • None

      A recent change to Jenkins led to an unexpected throughput drop in the wtperf evict jobs in Jenkins. The regression was introduced by: http://build.wiredtiger.com:8080/job/wiredtiger-perf-evict/495/

      That is adding in more eviction worker threads to the wtperf configuration files. Which was related to WT-2432.

      Testing with more eviction worker threads is more interesting that testing a single eviction worker - so it is worthwhile understanding the source of the difference.

        1. dev-vs-wt-2453-24-cores.png
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        2. dev-vs-wt-2453-4-cores.png
          dev-vs-wt-2453-4-cores.png
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        3. ev4workers.jpg
          ev4workers.jpg
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        4. evict1profile.jpg
          evict1profile.jpg
          17 kB
        5. evict4profile.jpg
          evict4profile.jpg
          18 kB
        6. treewalk.jpg
          treewalk.jpg
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              Assignee:
              Susan LoVerso (Inactive)
              Reporter:
              Alexander Gorrod
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                Created:
                Updated:
                Resolved: