Uploaded image for project: 'Lustre'
  1. Lustre
  2. LU-19839

ladvise and llapi option to permit bypass of Hybrid I/O

    XMLWordPrintable

Details

    • New Feature
    • Resolution: Unresolved
    • Medium
    • None
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      There would be benefit for some application profiles to allow for optional bypass of the Hybrid I/O mechanism.  Most likely to benefit would be applications with large request sizes that Hybrid would force down the direct path leaving large amounts of unused client memory and also increasing loads on the OSS, particularly when the active files would fit in the ever increasing memory of client nodes.

      Attachments

        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-18880 Hybrid IO: Add ladvise to disable on single file

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

          Activity

            People

              wc-triage WC Triage
              bauerj John Bauer
              Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

                Created:
                Updated: