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  1. WiredTiger
  2. WT-3816

Enable prefix compression on the lookaside table

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Details

    • Improvement
    • Status: Closed
    • Major - P3
    • Resolution: Fixed
    • None
    • 3.6.3, 3.7.1, WT3.1.0
    • None
    • None

    Description

      The keys in the lookaside table can be long and all the entries for a given value share a prefix. We should enable prefix compression to get a more compact representation of lookaside entries in memory and on disk. This should be particularly noticeable for workloads with small document sizes.

      Note: this work started in WT-3769, which evolved into a bug fix for reverse cursor walks with particular delete patterns with prefix compression enabled.

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              alexander.gorrod@mongodb.com Alexander Gorrod
              alexander.gorrod@mongodb.com Alexander Gorrod
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                Updated:
                Resolved: