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  1. Lustre
  2. LU-13122

osd-zfs to use 8K blocksize for llog objects

Details

    • Improvement
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0
    • None
    • None
    • 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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        Issue Links

          is related to

          Task - A task that needs to be done. LU-12336 Update ZFS Version to 0.8.2

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Activity

            [LU-13122] osd-zfs to use 8K blocksize for llog objects
            pjones Peter Jones added a comment -

            Am I correct in thinking that this issue has been fixed on master but that there was a typo in the JIRA reference? https://review.whamcloud.com/#/c/37192/

            pjones Peter Jones added a comment - Am I correct in thinking that this issue has been fixed on master but that there was a typo in the JIRA reference? https://review.whamcloud.com/#/c/37192/

            People

              bzzz Alex Zhuravlev
              bzzz Alex Zhuravlev
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              Dates

                Created:
                Updated:
                Resolved: