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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.

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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

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

            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: