Hi Damjan, I am creating vrf's using "*set interface ip table <interface name> <table ID/VRF ID>".* */dev/shm/vpe-api* shared memory is unlinked. I am able to see following error message on vppctl console.
*exec error: Misc* After this if i execute "show int" on vppctl, all VPP configuration i did so far was lost and started with default configuration as per /etc/vpp/startup.conf. You mentioned that VPP heap is not using huge pages. In that case can I increase heap memory with startup configuration "heapsize" parameter? Regards, Balaji On Wed, Sep 6, 2017 at 8:27 PM, Damjan Marion (damarion) <damar...@cisco.com > wrote: > > On 6 Sep 2017, at 16:49, Balaji Kn <balaji.s...@gmail.com> wrote: > > 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. > > > What do you mean by “shared memory was unlinked” ? > Which shared memory? > > > I felt this might be because of shortage of heap memory used in VPP and > might be solved with increase of huge page memory. > > > VPP heap is not using hugepages. > > > 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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