Memory sharing between two primary processes

[Pathak, Pravin]

Hi Kiran –
Can your application create and manage shared memory on it own without using DPDK support ?
Regards
Pravin

From: Kiran Khatke <kirankhatke23may at gmail.com>
Sent: Monday, June 6, 2022 2:26 AM
To: users at dpdk.org
Subject: Memory sharing between two primary processes


Hi,



Per DPDK Multiprocess, we know that, it is possible to share memory(hugepages) between a primary and secondary Process.  Primary process allocates the memory and that is accessible by the secondary (both are using same  "--file-prefix=" parameter).



There is a need in our application, to have two primary processes (started with different file-prefix) and would like to know the options - To share memory (hugepage) between two primaries and which can give us better throughputs.



During exploration, got to know about memif PMD, which allows for DPDK and any other client using memif (DPDK, libmemif) to communicate over shared memory.

Do you have any comments about memif performance ? Are there better options over memif to share memory between two primaries ?



Thanks ,

Kiran
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