Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-26753

Minor speed regression (13%) and 'choppy' performance in 3.4 vs 3.2

    XMLWordPrintable

Details

    • Task
    • Status: Closed
    • Minor - P4
    • Resolution: Fixed
    • 3.4.0-rc1
    • 3.2.11, 3.4.0-rc3
    • WiredTiger
    • Fully Compatible
    • Storage 2016-11-21

    Description

      OS is Win2012R2.

      When comparing my workload on the 3.4rc1 vs 3.2.10 there is a minor speed regression (13%) which appears to be mainly due to some intermittent activity (eviction?).

      I see the cpu spike to 100% every ~10-20 seconds with a corresponding speed drop. In 3.2, the cpu stays relatively flat.

      This is minor but thought you might like to know.

      Attachments

        1. mongo3.4.png
          mongo3.4.png
          383 kB
        2. mongo.3.2.png
          mongo.3.2.png
          360 kB
        3. mongo.3.2.10.png
          mongo.3.2.10.png
          283 kB
        4. high-cpu2.metrics.2016-11-04T16-37-01Z-00000
          109 kB
        5. high-cpu.metrics.2016-11-04T16-20-56Z-00000
          65 kB
        6. Custom Build.png
          Custom Build.png
          350 kB
        7. 3.4.metrics.2016-10-24T19-06-15Z-00000
          164 kB
        8. 3.2.metrics.2016-10-24T19-17-12Z-00000
          119 kB
        9. 3.2.9-high-cpu.metrics.2016-11-04T16-46-06Z-00000
          114 kB
        10. 3.2.10.metrics.2016-10-26T15-56-24Z-00000
          197 kB

        Activity

          People

            michael.cahill@mongodb.com Michael Cahill
            nick@innsenroute.com Nick Judson
            Votes:
            0 Vote for this issue
            Watchers:
            11 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: