At least for now, process nodes run on the main thread. See line 1587 of .../src/vlib/main.c.
The lldp-process is not super-complicated. Set a gdb breakpoint on line 157 [switch(event_type)], cause it to do something, and you can walk through it, etc. HTH... Dave From: vpp-dev-boun...@lists.fd.io [mailto:vpp-dev-boun...@lists.fd.io] On Behalf Of Yeddula, Avinash Sent: Thursday, November 30, 2017 5:49 PM To: vpp-dev@lists.fd.io Subject: [vpp-dev] Question on node type "VLIB_NODE_TYPE_PROCESS" Hello, I have a setup with, 1 worker thread (Core 8) and 1 main thread (Core 0). As I read about the node type VLIB_NODE_TYPE_PROCESS, it says "The graph node scheduler invokes these processes in much the same way as traditional vector-processing run-to-completion graph nodes". For eg.. A node like "lldp_process_node", as I see whenever a timeout occurs or an event has been generated, a frame has been sent out of an interface. The questions I have are.. 1. The part I'm not able to figure out yet is, where is (on which thread/core) this "lldp_process_node" running in the back ground ? I'm assuming it cannot be worker thread. 1. Would you please point me the piece of code in vpp infra, that schedules all nodes of type "VLIB_NODE_TYPE_PROCESS". 1. I tried to turn on few debugs like this "VLIB_BUFFER_TRACE_TRAJECTORY" and few other ones. None of them seems to generate any traces/logs (show trace - doesn't give me any info). Any pointers on how to enable relevant logs for this activity. Thanks -Avinash
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