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  1. WiredTiger
  2. WT-3897

raw compression (lz4, zlib) less effective in 3.6 release

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    • Type: Icon: Task Task
    • Resolution: Duplicate
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: WT3.0.0
    • Component/s: None
    • None
    • Environment:
      Ubuntu Linux 17.10 x64
    • Storage Non-NYC 2018-03-26, Storage Non-NYC 2018-04-09, Storage Non-NYC 2018-04-23, Storage Non-NYC 2018-05-07
    • v3.6

      Hello,

      I have just compiled the new WT3.0.0 release with --enable-lz4 and the compression it's worse (2x) than with version 2.9.3. My dataset was around 33MB with 2.9.3 and with 3.0.0 is around 68MB
      I'm using the same lz4 version (1.8.1.2) when compiling WT 2.9.3 and 3.0.0.

      Is there any new parameter or config, what can be the root of this behavior.

      Thank you in advance.

      Regards,

            Assignee:
            keith.bostic@mongodb.com Keith Bostic (Inactive)
            Reporter:
            Swoop Paco [X]
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            Watchers:
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              Created:
              Updated:
              Resolved: