On 01/07/2019 05:05 AM, Sean Mooney wrote:

 i think i share jays preference here in increasing the granularity and eiter tracking
 the allocation in MiBs or Bytes. i do somewhat agree that bytes is likely to fine grained
 hence my perference for mebibytes.

Actually, that's not at all my preference for PMEM :) My preference is
to use custom resource classes like "CUSTOM_PMEM_NAMESPACE_1TB" because
the resource is the namespace, not the bunch of blocks/bytes of storage.

With regards to the whole "finest-grained unit" thing, I was just
responding to Alex Xu's comment:

"The point of the initial design is avoid to encode the `size` in the
  resource class name. If that is ok for you(I remember people hate to
  encode size and number into the trait name), then we will update the
  design. Probably based on the namespace configuration, nova will be
  responsible for create those custom RC first. Sounds works."

Best,
-jay