No, there is no need to change default state. State can be changed during runtime... — Damjan
> > On 5 Feb 2020, at 09:54, Nitin Saxena <[email protected]> wrote: > > > Thanks Damjan. > > Then I think there will be plan to change default state of INPUT nodes from > POLLING to INTERRUPTIBLE. I think it is required to enable this feature at > some point. > > Thanks, > Nitin > > From: Damjan Marion <[email protected]> > Sent: Wednesday, February 5, 2020 2:00 PM > To: Nitin Saxena <[email protected]> > Cc: vpp-dev <[email protected]> > Subject: [EXT] Re: [vpp-dev] Regarding unix_epoll_input on worker cores > > External Email > There are 2 use cases: > > - delivering RX queue interrupts directpy to the worker which handles > specific queue > - waking up worker thread over eventfd > > None of them is used today, but it should be at some point... > > -- > DAmjan > > > On 5 Feb 2020, at 08:39, Nitin Saxena <[email protected]> wrote: > > Hi, > > I understand the purpose of unix-epoll-input PRE_INPUT node on main thread > but I am not able to envision why it is required on worker core. > The way I see it all clib_file_xx() operations are on main core. > > It will be helpful if any scenario can be explained where presence of > unix-epoll-input() on worker core solves the purpose > > Thanks, > Nitin > > > -- > Damjan >
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