Hi Prashant, Can you share your configuration and at least a backtrace of the crash? Or even better a corefile: https://fd.io/docs/vpp/master/troubleshooting/reportingissues/reportingissues.html
Best ben > -----Original Message----- > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Prashant > Upadhyaya > Sent: mardi 4 février 2020 09:15 > To: vpp-dev@lists.fd.io > Subject: Re: [vpp-dev] Regarding buffers-per-numa parameter > > Woops, my mistake. I think I multiplied by 1024 extra. > Mbuf's are 2KB's, not 2 MB's (that's the huge page size) > > But the fact remains that my usecase is unstable at higher configured > buffers but is stable at lower values like 100000 (this can by all > means be my usecase/code specific issue) > > If anybody else facing issues with higher configured buffers, please do > share. > > Regards > -Prashant > > > On Tue, Feb 4, 2020 at 1:31 PM Prashant Upadhyaya > <praupadhy...@gmail.com> wrote: > > > > Hi, > > > > I am using DPDK Plugin with VPP19.08. > > When I set the buffers-per-numa parameter to a high value, say, > > 250000, I am seeing crashes in the system. > > > > (The corresponding parameter controlling number of mbufs in VPP18.01 > > used to work well. This was in dpdk config section as num-mbufs) > > > > I quickly checked in VPP19.08 that vlib_buffer_main_t uses fields > > which are uwords :- > > uword buffer_mem_start; > > uword buffer_mem_size; > > > > Is it a mem size overflow in case the buffers-per-numa parameter is > > set to a high value ? > > I do need a high number of DPDK mbuf's in my usecase. > > > > Regards > > -Prashant
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