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  1. Lustre
  2. LU-7896

lu_object_limit() is called too frequently

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    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Minor Minor
    • Lustre 2.9.0
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    • 9223372036854775807

      with ZFS the number of objects in LU cache is limited, so any lu_object_new() checks whether the limit is exceeded. so, at some point it's called for every new object and worse - many threads got blocked in lu_site_purge() due to that. we don't need that strong semantics for the number of cached object, this should be fixed in a way to purge objects in batches in non-blocking manner.

            bzzz Alex Zhuravlev
            bzzz Alex Zhuravlev
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