Hi Damjan, I was trying to create 4k sub-interfaces for an interface and associate each sub-interface with vrf and observed a limitation in VPP 17.07 that was supporting only 874 VRFs and shared memory was unlinked for 875th VRF.
I felt this might be because of shortage of heap memory used in VPP and might be solved with increase of huge page memory. Regards, Balaji On Wed, Sep 6, 2017 at 7:10 PM, Damjan Marion (damarion) <damar...@cisco.com > wrote: > > why do you need so much memory? Currently, for default number of buffers > (16K per socket) VPP needs > around 40MB of hugepage memory so allocating 1G will be huge waste of > memory…. > > Thanks, > > Damjan > > On 5 Sep 2017, at 11:15, Balaji Kn <balaji.s...@gmail.com> wrote: > > Hello, > > Can you help me on below query related to 1G huge pages usage in VPP. > > Regards, > Balaji > > > On Thu, Aug 31, 2017 at 5:19 PM, Balaji Kn <balaji.s...@gmail.com> wrote: > >> Hello, >> >> I am using *v17.07*. I am trying to configure huge page size as 1GB and >> reserve 16 huge pages for VPP. >> I went through /etc/sysctl.d/80-vpp.conf file and found options only for >> huge page of size 2M. >> >> *output of vpp-conf file.* >> .# Number of 2MB hugepages desired >> vm.nr_hugepages=1024 >> >> # Must be greater than or equal to (2 * vm.nr_hugepages). >> vm.max_map_count=3096 >> >> # All groups allowed to access hugepages >> vm.hugetlb_shm_group=0 >> >> # Shared Memory Max must be greator or equal to the total size of >> hugepages. >> # For 2MB pages, TotalHugepageSize = vm.nr_hugepages * 2 * 1024 * 1024 >> # If the existing kernel.shmmax setting (cat /sys/proc/kernel/shmmax) >> # is greater than the calculated TotalHugepageSize then set this parameter >> # to current shmmax value. >> kernel.shmmax=2147483648 <(214)%20748-3648> >> >> Please can you let me know configurations i need to do so that VPP runs >> with 1GB huge pages. >> >> Host OS is supporting 1GB huge pages. >> >> Regards, >> Balaji >> >> > _______________________________________________ > vpp-dev mailing list > vpp-dev@lists.fd.io > https://lists.fd.io/mailman/listinfo/vpp-dev > > >
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