Hi Team,
Have a couple of questions on worker threads and handoff between threads.
Each lcore has one worker thread associated with it, and assuming that
RSS is not used, interfaces are associated with lcores, and thus with
threads.
--
ID Name Type LWP Sched Policy (Priority) lcore
Core
0 vpp_main 8536 other (0) 0
0 0
1 vpp_wk_0 workers 8548 other (0) 1 1
0
2 vpp_wk_1 workers 8549 other (0) 2 0
0
3 vpp_wk_2 workers 8550 other (0) 3 1
0
4 stats 8551 other (0)
0 0 0
--
DBGvpp# show interface rx-placement
Thread 1 (vpp_wk_0):
node dpdk-input:
GigabitEthernet0/1f/6 queue 0 (polling)
Each worker has the entire set of graph nodes, and runs the packet vector
through all the nodes.
So, if the number of lcores is more than the number of interfaces, how are
the others core utilized ?
I see that there is a device handoff function available, but do not see
documentation on when it is enabled, or how it can be used.
Regards,
Shiv
