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  1. Core Server
  2. SERVER-27045

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

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 3.4.0-rc3
    • Component/s: Performance, WiredTiger
    • None
    • Fully Compatible
    • ALL
    • Hide

      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.

      Show
      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

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

            Assignee:
            michael.cahill@mongodb.com Michael Cahill (Inactive)
            Reporter:
            lilianr@us.ibm.com Lilian Romero
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            Watchers:
            15 Start watching this issue

              Created:
              Updated:
              Resolved: