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  1. Lustre
  2. LU-16789

"lfs migrate" to use AIO/DIO or io_uring (kernel 5.1+)

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Details

    • Improvement
    • Resolution: Unresolved
    • Minor
    • None
    • None
    • 9223372036854775807

    Description

      It would be useful to speed up "lfs migrate", "lfs mirror extend", and "lfs mirror resync" to use asynchronous Direct IO (AIO/DIO via libaio) to do the data copying

      This should use the same mechanism as lustre/tests/aiocp.c to have a producer/consumer queue and submits some number of AIO read requests, and then submit the write requests when the reads finish.

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        Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. LU-17143 Use migrate_copy_data() for all data movement

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

          Improvement - An improvement or enhancement to an existing feature or task. LU-16587 Make lfs migrate faster

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

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. LU-12649 Tracker for ongoing FLR improvements

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

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              flei Feng Lei
              adilger Andreas Dilger
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              Dates

                Created:
                Updated: