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  1. HBase
  2. HBASE-15594 [YCSB] Improvements
  3. HBASE-16146

Counters are expensive...

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.3.0, 2.0.0
    • metrics
    • None
    • Reviewed

    Description

      Doing workloadc, perf shows 10%+ of CPU being spent on counter#add. If I disable some of the hot ones – see patch – I can get 10% more throughput (390k to 440k). Figure something better.

      Attachments

        1. counters.patch
          9 kB
          Michael Stack
        2. HBASE-16146.001.patch
          2 kB
          Gary Helmling
        3. HBASE-16146.branch-1.001.patch
          2 kB
          Gary Helmling
        4. HBASE-16146.branch-1.3.001.patch
          2 kB
          Gary Helmling
        5. less_and_less_counters.png
          22 kB
          Michael Stack

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-16616 Rpc handlers stuck on ThreadLocalMap.expungeStaleEntry

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              ghelmling Gary Helmling
              stack Michael Stack
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              Dates

                Created:
                Updated:
                Resolved: