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  1. Lustre
  2. LU-13786

Take server-side locks for direct i/o

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    • Improvement
    • Resolution: Duplicate
    • Major
    • None
    • None
    • None
    • 3
    • 18,801
    • 9223372036854775807

    Description

      Trying to investigate an idea that client side locks are not needed for direct i/o, formally, there is no client cache to protect, and client locks are expanded at server to the maximum extent while server-side locks are not (part of lock-ahead patch).

      The improvement was initially implemented for Luste-1.8 (https://bugzilla.lustre.org/show_bug.cgi?id=18801) and lost during client re-write (CLIO).

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          duplicates

          Improvement - An improvement or enhancement to an existing feature or task. LU-4198 Improve IO performance when using DIRECT IO using libaio

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-12916 allow small/unaligned writes into writeback cache if not O_SYNC

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

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              wc-triage WC Triage
              zam Alexander Zarochentsev
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              Dates

                Created:
                Updated:
                Resolved: