On Feb 9 09:12, Keith Busch wrote: > From: Keith Busch <kbusch@xxxxxxxxxx> > > Add support for NVMe TP4146 Flexible Data Placemen, allowing placement > identifiers in write commands. The user can enabled this with the new > "fdp=1" parameter for fio's io_uring_cmd ioengine. By default, the fio > jobs will cycle through all the namespace's available placement > identifiers for write commands. Technically, the namespace has Placement *Handles* associated and when writing, a Placement *Identifier* is used to also specify the Reclaim Group. > The user can limit which placement > identifiers can be used with additional parameter, "fdp_plis=<list,>", > which can be used to separate write intensive jobs from less intensive > ones. With the above in mind, it might make sense to align with the spec and call this "fdp_pids" instead. As far as I can tell, fio won't cycle through reclaim groups and create the pid on its own, without fdp_plis explicitly indicating it?
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