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  1. Couchbase Server
  2. MB-32107

4% throughput regression in KV : Pillowfight, 20/80 R/W, 256B binary items

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Details

    • Untriaged
    • Yes

    Description

      As reported by http://showfast.sc.couchbase.com/daily/#/history/KV%7CPillowfight,%2020/80%20R/W,%20256B%20binary%20items%7CMax%20Throughput%20(ops/sec) :

      Appears to have occurred between builds 6.5.0-1545 and 6.5.0-1561

      Build Throughput
      6.5.0-1561 1,916,444
      6.5.0-1545 2,009,289

      Attachments

        1. connhandlernew.txt
          4 kB
        2. connhandlerold.txt
          10 kB
        3. dcpconsumernew.txt
          27 kB
        4. dcpconsumerold.txt
          30 kB
        5. dcpproducernew.txt
          25 kB
        6. dcpproducerold.txt
          28 kB
        7. Screen Shot 2018-11-21 at 15.55.48.png
          Screen Shot 2018-11-21 at 15.55.48.png
          130 kB

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. MB-32389 10% drop in KV throughput over time

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          For Gerrit Dashboard: MB-32107
          # Subject Branch Project Status CR V
          103678,2 MB-32107: Create toy builds before/after regression master manifest Status: MERGED +2 +1
          103899,10 MB-32107: Resolve performance regression master kv_engine Status: ABANDONED 0 +1
          104193,10 MB-32107: Reduce false sharing of cache lines in DcpProducer master kv_engine Status: MERGED +2 +1
          104255,5 MB-32107: Reduce cache line contention by moving DcpProducer acquisition master kv_engine Status: MERGED +2 +1
          104256,5 MB-32107: Remove recursive nextCheckpointItemTask call in ActiveStream master kv_engine Status: MERGED +2 +1
          104814,2 MB-32107: Add MH 2202 toy to identify possible regression master manifest Status: MERGED +2 +1
          105162,2 MB-32107: Update manifests for perf master manifest Status: MERGED +2 +1

          Activity

            People

              ben.huddleston Ben Huddleston
              drigby Dave Rigby (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:

                PagerDuty