> On 4 Sep 2020, at 10:41, Solis JR, M. (Mauricio) via lists.fd.io > <mauricio.solisjr=tno...@lists.fd.io> wrote: > > Thank you, I'm beginning to understand now, then total = available + cached + > used?
yes > > Is there a way to determine who has cached What do you mean by “who have cached”? Cached buffers are free buffers sitting in the per-worker list. > and who is using a specific buffer? No, it will be to expensive to track that... > > Is allocation of buffers bounded to a specific numa node? Yes, device drivers are typically allocating buffers for rx queue from pool which is local to rx thread. > Or can they allocate across numa nodes? If so, how is this determined? You need to specify in the code from which pool buffers should be allocated. Simple call to vlib_buffer_alloc (vm, …) will alloc buffers respecting vm->numa_node…. — Damjan
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