Thank you guidance on this topic. Is there good documentation on API usage? VPPINFRA (Infrastructure) — Vector Packet Processor 01 documentation (fdio-vpp.readthedocs.io) <https://fdio-vpp.readthedocs.io/en/latest/gettingstarted/developers/infrastructure.html> This info is too little to understand all the semantics.
On Tue, Jul 13, 2021 at 3:39 PM Damjan Marion <dmar...@me.com> wrote: > > > > On 13.07.2021., at 18:41, satish amara <satishkam...@gmail.com> wrote: > > > > Sync is needed. It's a question about the design of packet flow in VPP. > Locks can be avoided if the packets in a flow are processed by the same > thread. > > You can use the handoff to make sure all packets belonging to specific > flow or session end up on the same thread. > > You can use bihash to store both thread_index and per-thread flow/session > index in hash result. Bihash have per-bucket locks so it is safe to use > single hash table from different workers. > > After lookup you can simply compare lookup result thread_index with > current thread index. if they are different you simply handoff packet to > other thread, if they are the same you continue processing packets on the > same thread. > > After that you can build all your data structures as per-thread and avoid > locking or atomics. > > — > Damjan > > >
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