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  1. Lustre
  2. LU-11404

improve fsync() and fdatasync()

    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor
    • Resolution: Unresolved
    • Affects Version/s: Upstream
    • Fix Version/s: None
    • Labels:
      None
    • Rank (Obsolete):
      9223372036854775807

      Description

      workload like dd oflag=sync causes MDS_SYNC RPC on every write(2) syscall.

      given the only things we store on MDS are file itself and layout it should be enough to send MDS_SYNC once (to sync file creation) and once for every layout change.

       

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            • Assignee:
              bzzz Alex Zhuravlev
              Reporter:
              bzzz Alex Zhuravlev
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              Dates

              • Created:
                Updated: