Try setting the node state to VLIB_NODE_STATE_DISABLED on the main thread: Vlib_node_state_state (vlib_mains[0] or &vlib_global_main, ...):
/** \brief Set node dispatch state. @param vm vlib_main_t pointer, varies by thread @param node_index index of the node @param new_state new state for node, see vlib_node_state_t */ void vlib_node_set_state (vlib_main_t * vm, u32 node_index, vlib_node_state_t new_state) -----Original Message----- From: Prashant Upadhyaya <praupadhy...@gmail.com> Sent: Thursday, November 22, 2018 8:53 AM To: Dave Barach (dbarach) <dbar...@cisco.com> Cc: vpp-dev@lists.fd.io Subject: Re: [vpp-dev] Difference between PRE_INPUT and INPUT nodes Thanks Dave. I used the VLIB_NODE_TYPE_INPUT, but I now observe that, in presence of worker threads, my main thread is going to 100 % cpu utilization as well. Without my new node, the main thread does not go to 100 % cpu utilization. I want the polling to happen only in worker threads (or the main thread if there are no workers) Can I do something at the runtime to achieve that ? Regards -Prashant On Thu, Nov 22, 2018 at 7:02 PM Dave Barach (dbarach) <dbar...@cisco.com> wrote: > > Use VLIB_NODE_TYPE_INPUT. Pre-input nodes - of which there is one - exist to > make sure that a certain epoll(...) call happens at the top of the loop. > > D. > > -----Original Message----- > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Prashant > Upadhyaya > Sent: Thursday, November 22, 2018 7:41 AM > To: vpp-dev@lists.fd.io > Subject: [vpp-dev] Difference between PRE_INPUT and INPUT nodes > > Hi, > > What is the difference between -- > .type = VLIB_NODE_TYPE_PRE_INPUT > and > .type = VLIB_NODE_TYPE_INPUT > > when the -- > .state = VLIB_NODE_STATE_POLLING > > Typically when should the PRE_INPUT be used and when the INPUT, would > appreciate any advice on this. My usecase needs to do a high speed polling. > > Regards > -Prashant
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