22 Feb
2021
22 Feb
'21
6:55 a.m.
Dnia Mon, Feb 22, 2021 at 08:33:35AM -0300, Douglas Fischer napisał(a):
But IMHO, the questions do not cover the actual reality of DPDK. That característic of "100% CPU" depends on several aspects, like: - How old are the hardware on DPDK. - What type of DPDK Instructions are made(Very Dynamic as Statefull CGNAT, ou Static ACLs?) - Using or not the measurements of DPDK Input/Drop/Fowarding. - CPU Affinity done according to the demand of traffic - SR-IOV (sharing resources) on DPDK.
It consumes 100% only if you busy poll (which is the default approach). One can switch between polling and interrupts (or monitor, if supported), or introduce halt instructions, in case of low/medium traffic volume. -- Pawel Malachowski @pawmal80