Over 40% regression on mongodb using YCSB workload - follow on to server-26674

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
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    • Affects Version/s: 3.4.0-rc3
    • Component/s: Performance, WiredTiger
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    • Fully Compatible
    • ALL
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      How to reproduce:
      use YCSB 6.0
      Configuration:
      fieldcount=10
      fieldlength=10
      recordcount=120000000
      operationcount=100000000
      workload=com.yahoo.ycsb.workloads.CoreWorkload
      readallfields=true
      readproportion=0.5
      updateproportion=0.5
      scanproportion=0
      insertproportion=0

      System used: Power with 256GB of memory.

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      How to reproduce: use YCSB 6.0 Configuration: fieldcount=10 fieldlength=10 recordcount=120000000 operationcount=100000000 workload=com.yahoo.ycsb.workloads.CoreWorkload readallfields=true readproportion=0.5 updateproportion=0.5 scanproportion=0 insertproportion=0 System used: Power with 256GB of memory.
    • Storage 2016-12-12
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      We opened ticket SERVER-26674 on a performance issue. While 3.4rc3 fixed the issue reported on SERVER-26674, when we tried the same YCSB test with a different set of parameters we are running into performance problems. 

      version         Results
----------------------------------------
3.3.8           302280.29 ops/sec
3.4.rc3         130755.69 ops/sec

      The vmstat with version 3.4rc3 shows high and lows where as with 3.3.8 it is very even.

        1. stack.low.mongo
          295 kB
          Lilian Romero
        2. stack.high.mongo
          288 kB
          Lilian Romero
        3. diagnostic.data.338.tar.gz
          891 kB
          Lilian Romero
        4. diagnostic.data_3.4cr3.tar.gz
          2.46 MB
          Lilian Romero
        5. cache-3-4-0-rc3.png
          99 kB
          Kelsey Schubert
        6. cache-3-3-8.png
          74 kB
          Kelsey Schubert
        7. 2016-11-22T16-37-51Z.tar.gz
          1016 kB
          Jim Van Fleet
        8. 2016-11-21T17-40-57Z.tar.gz
          1.18 MB
          Jim Van Fleet

            Assignee:
            Michael Cahill (Inactive)
            Reporter:
            Lilian Romero
            Votes:
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            Watchers:
            15 Start watching this issue

              Created:
              Updated:
              Resolved: