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  1. HBase
  2. HBASE-20188 Evaluate and address performance delta between branch-1 and branch-2
  3. HBASE-20620

Tighter ByteBufferKeyValue Cell Comparator; part 2

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.0.0
    • 2.0.1
    • Performance
    • None
    • Reviewed

    Description

      This is a follow-on from HBASE-20564 "Tighter ByteBufferKeyValue Cell Comparator". In this issue, we make a stripped-down comparator that we deploy in one location only, as memstore Comparator. HBASE-20564 operated on CellComparator/Impl and got us 5-10k more throughput on top of a baseline 40k or so. A purposed stripped-down ByteBufferKeyValue comparator that fosters better inlining gets us from 45-50k up to about 75k (1.4 does 110-115k no-WAL PE writes). Data coming. Log of profiling kept here: https://docs.google.com/document/d/1vZ_k6_pNR1eQxID5u1xFihuPC7FkPaJQW8c4M5eA2AQ/edit#

      Attachments

        1. HBASE-20620.branch-2.0.001.patch
          47 kB
          Michael Stack
        2. HBASE-20620.branch-2.0.002.patch
          45 kB
          Michael Stack
        3. HBASE-20620.branch-2.0.003.patch
          45 kB
          Michael Stack
        4. hits.png
          14 kB
          Michael Stack

        Issue Links

          relates to

          Sub-task - The sub-task of the issue HBASE-20564 Tighter ByteBufferKeyValue Cell Comparator

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link Review Board (branch-2.0)

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              stack Michael Stack
              stack Michael Stack
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              Dates

                Created:
                Updated:
                Resolved: