[dpdk-dev] [PATCH v3 1/2] mempool: add stack (lifo) mempool handler

Jerin Jacob jerin.jacob at caviumnetworks.com
Mon Jun 20 15:25:07 CEST 2016

On Mon, Jun 20, 2016 at 02:08:10PM +0100, David Hunt wrote:
> This is a mempool handler that is useful for pipelining apps, where
> the mempool cache doesn't really work - example, where we have one
> core doing rx (and alloc), and another core doing Tx (and return). In
> such a case, the mempool ring simply cycles through all the mbufs,
> resulting in a LLC miss on every mbuf allocated when the number of
> mbufs is large. A stack recycles buffers more effectively in this
> case.
> Signed-off-by: David Hunt <david.hunt at intel.com>
> ---
>  lib/librte_mempool/Makefile            |   1 +
>  lib/librte_mempool/rte_mempool_stack.c | 145 +++++++++++++++++++++++++++++++++

How about moving new mempool handlers to drivers/mempool? (or similar).
In future, adding HW specific handlers in lib/librte_mempool/ may be bad idea.


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