Leon Romanovsky writes:
First group (programmers) is using special API [1] through libibverbs [2] without any notion of cgroups or any limitations. Second group (sysadmins) is less interested in application specifics and for them "device memory" means "memory" and not "rdma, nic specific, internal memory".
I'd suggest otherwise, based on historic precedent -- sysadmins are typically very opinionated about operation of the memory subsystem (hence the endless discussions about swap, caching behaviour, etc).
Especially in this case, these types of memory operate fundamentally differently and have significantly different performance and availability characteristics. That's not something that can be trivially abstracted over without non-trivial drawbacks.
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