Hi Macros, please see inline
On Thu, Apr 15, 2021 at 8:44 PM <mar...@mgiga.com.br> wrote: > > 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? Yes, i think so. the default size is 2048. > > 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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