Hi Feng, I do see some drops , as the following output shows:
rx bytes 650888808551 tx packets 6222947195 tx bytes 7707890251578 drops 1932271 ip4 2291263868 rx-miss 9976 tx-error 1990 In order to increase the buffer size, do I have to change the "default data-size" in buffer section? Best Regards Marcos -----Mensagem original----- De: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> Em nome de Feng Gao Enviada em: quarta-feira, 14 de abril de 2021 23:10 Para: Marcos - Mgiga <mar...@mgiga.com.br> Cc: dmar...@me.com; vpp-dev@lists.fd.io Assunto: Re: [vpp-dev] TX Queue Placement Hi Macros, You could use "show interface" to check if there are some drop packets. If so, it may mean the rx buffer isn't enough. And you could use "show node counters" to check if there some drop packets by other reasons. On Wed, Apr 14, 2021 at 8:41 PM Marcos - Mgiga <mar...@mgiga.com.br> wrote: > > Understood... > > > > > > Usually I use show run to monitor packet drops. Do you have another > suggestion for me to get a more precise information about it? > > > > Best Regards > > > > De: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> Em nome de Damjan Marion > via lists.fd.io Enviada em: quarta-feira, 14 de abril de 2021 09:06 > Para: Marcos - Mgiga <mar...@mgiga.com.br> > Cc: vpp-dev@lists.fd.io > Assunto: Re: [vpp-dev] TX Queue Placement > > > > > > General rule is that increasing those values are reducing number of rx > drops due to > > VPP being de-scheduled or busy or due to traffic bursts, but also that > degrades performance. > > > > I think what we have set as default is reasonable and you should leave > it unless you are experiencing some issues… > > > > — > > Damjan > > > > > > On 14.04.2021., at 13:45, Marcos - Mgiga <mar...@mgiga.com.br> wrote: > > > > Hello Damjan, > > > > Thank you for clarifying... > > > > I also have a question about num-rx-desc and num-rt-desc parameters, > hope you dont mind to dicuss it in this e-mail > > > > I would like to understand what value fits better to my environment, do have > any thoughts about it? > > > > Best Regards > > De: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> Em nome de Damjan Marion > via lists.fd.io Enviada em: quarta-feira, 14 de abril de 2021 08:24 > Para: Marcos - Mgiga <mar...@mgiga.com.br> > Cc: vpp-dev@lists.fd.io > Assunto: Re: [vpp-dev] TX Queue Placement > > > > > > > > > On 14.04.2021., at 13:21, Marcos - Mgiga <mar...@mgiga.com.br> wrote: > > > > Hello, > > > > I increased VPP rx/tx queues in order to enable RSS on VPP instance. Since > VPP is running on a NUMA system with two threads with 8 cores each, I would > like to pin TX / RX queue to proper NUMA nodes. > > > > Using set interface rx-placement I was able to associate rx queue to desired > cores, so I would like to know if is there any possibility to pin tx queue to > a certain workers as well. > > > > > > Not at the moment. tx queues are statically mapped (0 to main thread, 1 to > worker 0, 2 to worker 1, etc.). > > There are some plans to implement such capability….. > > > > > > > > > > > >
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