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  1. Couchbase Server
  2. MB-32388

3% throughput regression in KV after MB-32061 change

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    • Untriaged
    • Yes

    Description

      the MB-32061 fix is the following change:

      Build couchbase-server-6.5.0-1691 contains kv_engine commit 54d4e73 with commit message: MB-32061: Lower spdlog buffer size

      which resulted about 3% drop in max throughput (pillowfight test)

      cbc-pillowfight, 2 nodes, 50/50 R/W:

      2.55M ops/sec vs 2.50M ops/sec average on build 6.5.0-1691

      logs and reports:

      6.5.0-1691: http://perf.jenkins.couchbase.com/job/ares/9090/console

      6.5.0-1690: http://perf.jenkins.couchbase.com/job/ares/9091/console

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          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MB-32061 Increased memory fragmentation and overhead

          • Major - Major loss of function.
          • Closed
          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
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              oleksandr.gyryk Alex Gyryk (Inactive)
              oleksandr.gyryk Alex Gyryk (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:

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