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  1. WiredTiger
  2. WT-4572

Explore performance improvement in __wt_log_slot_join()

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    • Type: Icon: Improvement Improvement
    • Resolution: Works as Designed
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: None
    • Labels:
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    • 8
    • Storage Engines 2019-02-25, Storage Engines 2019-03-11, Storage Engines 2019-03-25

      This function call is sampled just 1 time in the gdb stacks collected on both M200 / i3.metal instance.

      Although this function doesn't show up many times in the sampled call stacks, it may worth to analyze it because there could be some configuration/environments which make contention on it.

       

      Total number of gdb stack samples: 3,640 (40 samples x 91 threads)

      Number of __wt_log_slot_join() appearance on M200(m4.16xlarge): 1

      Number of __wt_log_slot_join() appearance on i3.metal: 1

        1. ycsb_100update-on-i3.metal.png
          ycsb_100update-on-i3.metal.png
          112 kB
        2. ycsb_100update-on-M200(m4.16xlarge).png
          ycsb_100update-on-M200(m4.16xlarge).png
          112 kB

            Assignee:
            sulabh.mahajan@mongodb.com Sulabh Mahajan
            Reporter:
            jongbin.kim Jongbin Kim
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              Created:
              Updated:
              Resolved: