[PATCH v8 0/7] Lcore variables

[Stephen Hemminger]

On Thu, 10 Oct 2024 16:13:42 +0200
Mattias Rönnblom <mattias.ronnblom at ericsson.com> wrote:

> This patch set introduces a new API <rte_lcore_var.h> for static
> per-lcore id data allocation.
> 
> Please refer to the <rte_lcore_var.h> API documentation for both a
> rationale for this new API, and a comparison to the alternatives
> available.
> 
> The adoption of this API would affect many different DPDK modules, but
> the author updated only a few, mostly to serve as examples in this
> RFC, and to iron out some, but surely not all, wrinkles in the API.
> 
> The question on how to best allocate static per-lcore memory has been
> up several times on the dev mailing list, for example in the thread on
> "random: use per lcore state" RFC by Stephen Hemminger.
> 
> Lcore variables are surely not the answer to all your per-lcore-data
> needs, since it only allows for more-or-less static allocation. In the
> author's opinion, it does however provide a reasonably simple and
> clean and seemingly very much performant solution to a real problem.

There should be a mention about whether this storage can be
shared with other threads and processes. Is it like huge page
memory or stack or heap?