run example failed

[kheirabadi]

Hi,
I can't run any example. please tell me steps required to run webserver example. I used scripts/devbuild_ofp_odp_dpdk.sh to compile ofp, odp, dpdk.

[dosarudaniel]

Hi, @kheirabadi ,

Try these commands before running the webserver: (more info in step 4, here )

Reserve hugepages:

sudo sh -c 'echo 1024 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages'

Mount hugetlbfs:

sudo mkdir /mnt/huge
sudo mount -t hugetlbfs nodev /mnt/huge

Insert DPDK kernel module:

sudo /sbin/modprobe uio
cd <director where you installed ofp>/script/dpdk
sudo insmod x86_64-native-linuxapp-gcc/kmod/igb_uio.ko

Bind NIC's to DPDK:

./tools/dpdk-devbind.py --status # show your available NICs
sudo ifconfig <NIC name to bind> down # <NIC name to bind> example eth0
sudo ./usertools/dpdk-devbind.py --bind=igb_uio <NIC name to bind>

Then run the webserver, from ~/ofp/example/webserver$:

sudo ODP_PLATFORM_PARAMS="-n 4" ./webserver -i 0 -c 2

[kheirabadi]

hi dear, I follow steps you guide me, but the program can''t execute. the output is: RLIMIT_CORE: 0/-1 Setting to max: 0 EAL: Detected 16 lcore(s) EAL: Probing VFIO support... EAL: Failed to remap 2 MB pages PANIC in rte_eal_init(): Cannot init memory Regards, hamid

On Thu, 08/31/2017 03:43 PM, Daniel-Florin Dosaru ***@***.***> wrote:

Hi, @kheirabadi , Try these commands before running the webserver: (more info in step 4, here ) Reserve hugepages: sudo sh -c 'echo 1024 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages' Mount hugetlbfs: sudo mkdir /mnt/huge sudo mount -t hugetlbfs nodev /mnt/huge Insert DPDK kernel module: sudo /sbin/modprobe uio cd <director where you installed ofp>/script/dpdk sudo insmod x86_64-native-linuxapp-gcc/kmod/igb_uio.ko Bind NIC's to DPDK: ./tools/dpdk-devbind.py --status # show your available NICs sudo ifconfig <NIC name to bind> down # <NIC name to bind> example eth0 sudo ./usertools/dpdk-devbind.py --bind=igb_uio <NIC name to bind> Then run the webserver, from ~/ofp/example/webserver$: sudo ODP_PLATFORM_PARAMS="-n 4" ./webserver -i 0 -c 2 —

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[ViktorTikkanen]

Hi kheirabadi!

Do you still have problems with running ODP-DPDK based OFP applications? If so, can you please try following things:

1. Run the latest version of scripts/devbuild_ofp_odp_dpdk.sh script (pushed 17.10.2017). Among other changes, it installs newer version of DPDK (17.02).

2. Try to remount hugetlbfs:

umount -a -t hugetlbfs
mount -t hugetlbfs nodev /mnt/huge

If this will not help, please sent the output of 'cat /proc/meminfo' command before and after starting an OFP application. You can also try to run DPDK's own test application (testpmd) in order to troubleshoot possible DPDK problems.