Hi Changchun, You can set numa_node using this command
*echo 0 > /sys/devices/pci0000\:00/<pci_id>/numa_node (if numa node is 0)* *echo 1 > /sys/devices/pci0000\:00/<pci_id>/numa_node * *(if numa node is 1)* In logs, you are seeing its invalid value i.e -1. Regards Dheeraj Dang On Sun, Mar 3, 2019 at 4:22 AM Changchun Zhang <[email protected]> wrote: > > > Hi Gurus, > > > > I launched a virtual box based linux on my windows, and my PC is thinkpad > T480. > > After configured the huge pages as number of 2MBs and the cpu number as 4 > on the vm linux, I build DPDK and run the example of hellowworld but get > the below output, in which I saw the "invalid NUMA socket". What does it > mean and does it matter, as I see the hello from core # is also printed. > > > > [~ build]$ sudo ./helloworld > > EAL: Detected 4 lcore(s) > > EAL: Detected 1 NUMA nodes > > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > > EAL: Probing VFIO support... > > EAL: PCI device 0000:00:03.0 on NUMA socket -1 > > EAL: Invalid NUMA socket, default to 0 > > EAL: probe driver: 8086:100e net_e1000_em > > hello from core 1 > > hello from core 2 > > hello from core 3 > > hello from core 0 >
