Messages in this thread | | | Date | Thu, 19 Dec 2019 13:09:25 +0100 | From | Michal Hocko <> | Subject | Re: [net-next v4 PATCH] page_pool: handle page recycle for NUMA_NO_NODE condition |
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On Wed 18-12-19 09:01:35, Jesper Dangaard Brouer wrote: [...] > For the NUMA_NO_NODE case, when a NIC IRQ is moved to another NUMA > node, then ptr_ring will be emptied in 65 (PP_ALLOC_CACHE_REFILL+1) > chunks per allocation and allocation fall-through to the real > page-allocator with the new nid derived from numa_mem_id(). We accept > that transitioning the alloc cache doesn't happen immediately.
Could you explain what is the expected semantic of NUMA_NO_NODE in this case? Does it imply always the preferred locality? See my other email[1] to this matter.
[1] http://lkml.kernel.org/r/20191219115338.GC26945@dhcp22.suse.cz -- Michal Hocko SUSE Labs
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