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  1. Lustre
  2. LU-2377

Provide a mechanism to reset the ldiskfs extents allocation position to near the beginning of a drive

Details

    • Improvement
    • Resolution: Won't Fix
    • Minor
    • None
    • None
    • 5643

    Description

      Apparently, the current allocator may allocate extents near "the end" of an OST at any point. Restarting the OSS seems to cause the allocator to again choose extents near "the beginning".

      Since extents near the beginning of the OST drive have much better write performance, it will be good for benchmark/performance testing to be able to "reset" allocations w/o OST restart.

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            [LU-2377] Provide a mechanism to reset the ldiskfs extents allocation position to near the beginning of a drive
            adilger Andreas Dilger made changes -
            Link New: This issue is related to SEA-166 [ SEA-166 ]
            adilger Andreas Dilger made changes -
            Link New: This issue duplicates LU-8365 [ LU-8365 ]
            keith Keith Mannthey (Inactive) made changes -
            Resolution New: Won't Fix [ 2 ]
            Status Original: Open [ 1 ] New: Resolved [ 5 ]
            pjones Peter Jones made changes -
            Assignee Original: WC Triage [ wc-triage ] New: Keith Mannthey [ keith ]
            pjones Peter Jones made changes -
            Labels New: patch
            zam Alexander Zarochentsev created issue -

            People

              keith Keith Mannthey (Inactive)
              zam Alexander Zarochentsev
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              Dates

                Created:
                Updated:
                Resolved: