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  1. Lustre
  2. LU-12644

correct fast read & strided readahead interaction

Details

    • Bug
    • Resolution: Fixed
    • Minor
    • Lustre 2.14.0
    • None
    • None
    • 3
    • 9223372036854775807

    Description

      Fast read adjusts readahead, but does not correctly calculate pages for strided mode.  Fixing this is necessary to get strided readahead working correctly.

      Attachments

        Issue Links

          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. LU-12367 readahead page count calculation is incorrect for unaligned reads

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

          Bug - A problem which impairs or prevents the functions of the product. LU-13541 Application hang and kernel "divide error" in ll_readpage

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

          Activity

            [LU-12644] correct fast read & strided readahead interaction
            pjones Peter Jones added a comment -

            Landed for 2.14

            pjones Peter Jones added a comment - Landed for 2.14
            gerrit Gerrit Updater added a comment -

            Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/35466/
            Subject: LU-12644 llite: try fast io for stride io correctly
            Project: fs/lustre-release
            Branch: master
            Current Patch Set:
            Commit: 9e4c5bdaaec5ef347260f0fd2f916143224f3cc4

            gerrit Gerrit Updater added a comment - Oleg Drokin (green@whamcloud.com) merged in patch https://review.whamcloud.com/35466/ Subject: LU-12644 llite: try fast io for stride io correctly Project: fs/lustre-release Branch: master Current Patch Set: Commit: 9e4c5bdaaec5ef347260f0fd2f916143224f3cc4
            pfarrell Patrick Farrell (Inactive) added a comment -

            https://review.whamcloud.com/35466 from wshilong for this

            pfarrell Patrick Farrell (Inactive) added a comment - https://review.whamcloud.com/35466  from wshilong for this

            People

              wshilong Wang Shilong (Inactive)
              pfarrell Patrick Farrell (Inactive)
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              Dates

                Created:
                Updated:
                Resolved: