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  1. Lustre
  2. LU-13122

osd-zfs to use 8K blocksize for llog objects

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: Lustre 2.14.0
    • Labels:
      None
    • Rank (Obsolete):
      9223372036854775807

      Description

      with zfs 0.8+ default blocksize is 512 bytes, which turns into 16 dbufs to lookup/create for many llog operations.
      with 8K blocksize many llog-related tests improve a lot.
      for example sanity/60a takes 52s with 8K and 94s with 512 bytes.

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              • Assignee:
                bzzz Alex Zhuravlev
                Reporter:
                bzzz Alex Zhuravlev
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                • Created:
                  Updated:
                  Resolved: