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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

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    • 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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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. LU-8365 Fix mballoc stream allocator to better use free space at start of drive

          • Major - Major loss of function.
          • Open

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              keith Keith Mannthey (Inactive)
              zam Alexander Zarochentsev
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                Created:
                Updated:
                Resolved: