Re: [vpp-dev] Does memif zero-copy work ?

2021-10-23 Thread Damjan Marion via lists.fd.io
What is your suggestion? Which part of the plugin is wrongly written? — Damjan > On 24.10.2021., at 00:16, Mrityunjay Kumar wrote: > >  > Damjan, > > I think you are trying to explain one copy always occurs in memif > communication, > > > Currently VPP memif plugin is wrongly/misleading

[vpp-dev] Correct way to configure IPFIX export on vlan subinterface

2021-10-23 Thread alekcejk via lists.fd.io
Hi everybody, A couple of years ago I tested vpp-19.01 in CentOS7 vm. I found that exporting IPFIX is not possible for vlan subinterfaces, see my previous message with details about this here https://lists.fd.io/g/vpp-dev/topic/30186409?p=,,,20,0,0,0::,,,0,0,0,30186409 The same setup now with vp

Re: [vpp-dev] Are INPUT and PROCESS nodes considered for CPU util calculations?

2021-10-23 Thread Mrityunjay Kumar
Satya Hi, INPUT node and Process node has its diffrent culture and uses. Input nodes are siblings of ethernet input but process nodes are light weight threads which run always on main threads. In case you have any workers cpu configured, main thread never went for polling until not configured a

Re: [vpp-dev] Does memif zero-copy work ?

2021-10-23 Thread Mrityunjay Kumar
Damjan, I think you are trying to explain one copy always occurs in memif communication, Currently VPP memif plugin is wrongly/misleadingly written and it also misguiding to VPP users. When I look this code long back, it also misleading me. On Sat, 23 Oct, 2021, 11:52 pm Damjan Marion via l

Re: [vpp-dev] Does memif zero-copy work ?

2021-10-23 Thread Damjan Marion via lists.fd.io
Please note that “zero copy memif” doesn’t exist. Long time ago I possibly wrongly/misleadingly added VPP feature with name “zero-copy slave”. It is vpp internal feature which avoids 2nd memcopy by exposing VPP (slave only) buffers directly to master. In such scenario still one memcpy exists….

Re: [vpp-dev] Are INPUT and PROCESS nodes considered for CPU util calculations?

2021-10-23 Thread Damjan Marion via lists.fd.io
Dear Satya, If you are in polling mode CPU is always 100% utilised. Not sure what do you mean by "CPU utilisation” here... — Damjan > On 18.10.2021., at 16:16, Satya Murthy wrote: > > Hi VPP Experts, > > We have an issue at hand, where we are seeing non-uniform CPU utilizations > showing