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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
            adilger Andreas Dilger made changes -
            Link New: This issue is related to LU-13541 [ LU-13541 ]
            pjones Peter Jones made changes -
            Fix Version/s New: Lustre 2.14.0 [ 14490 ]
            Resolution New: Fixed [ 1 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            pjones Peter Jones made changes -
            Link New: This issue is related to EX-722 [ EX-722 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-867 [ DDN-867 ]
            adilger Andreas Dilger made changes -
            Link New: This issue is related to DDN-765 [ DDN-765 ]
            mdiep Minh Diep made changes -
            Comment [ Patrick Farrell (pfarrell@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/36064
            Subject: LU-12644 llite: try fast io for stride io correctly
            Project: fs/lustre-wc
            Branch: io500
            Current Patch Set: 1
            Commit: ea268e95c8f19f422a973f4025e90be4b045c776 ]
            pfarrell Patrick Farrell (Inactive) made changes -
            Link New: This issue is duplicated by LU-12367 [ LU-12367 ]
            pfarrell Patrick Farrell (Inactive) made changes -
            Assignee Original: Patrick Farrell [ pfarrell ] New: Wang Shilong [ wshilong ]
            pfarrell Patrick Farrell (Inactive) created issue -

            People

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

                Created:
                Updated:
                Resolved: