大页内存分配：
NUMA系统（现在的linux一般都是）
echo 1024 >/sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepagesecho 1024 >/sys/devices/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages
[root@localhost dpdk-dst]# lscpuArchitecture: x86_64CPU op-mode(s):32-bit,64-bitByteOrder:LittleEndianCPU(s):2On-line CPU(s)list:0,1Thread(s) per core:1Core(s) per socket:2Socket(s):1NUMA node(s):1Vendor ID:GenuineIntelCPU family:6Model:61Model name:Intel(R)Core(TM) i5-5200U CPU @2.20GHzStepping:4CPU MHz:2194.916BogoMIPS:4389.83Hypervisor vendor:VMwareVirtualization type: fullL1d cache:32KL1i cache:32KL2 cache:256KL3 cache:3072KNUMA node0 CPU(s):0,1
从上面可以看到，
NUMA node(s):1
总共有一个NUMA node,注意这里的node个人理解就是具有独立内存和CPU总线的最小计算单元（
每个node内部有自己的CPU总线和内存），而
Core就是socket里独立的一组程序执行的
硬件单元
，比如寄存器，计算单元等,不单独占有内存。
非NUMA系统
echo 1024 >/sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
大页内存的挂载
mkdir /mnt/hugemount -t hugetlbfs nodev /mnt/huge
export RTE_SDK=/home/yml/dpdk/dpdk-stable-16.07.2 //这个是你生成的编译环境的路径export RTE_TARGET=x86_64-native-linuxapp-gcc //编译的环境变量export DESTDIR = /home/yml/dpdk/dpdk-stable-16.07.2/ //你的安装路径，就是编译出来的文件的路径
编译
make install T=$RTE_TARGET
Loading Modules to Enable Userspace IO for DPDK
cd x86_64-native-linuxapp-gcc/sudo modprobe uiosudo insmod kmod/igb_uio.kosudo insmod kmod/rte_kni.ko
网卡绑定
./tools/dpdk-devbind.py --status 查询网卡状态
[root@localhost tools]#./dpdk-devbind.py --statusNetwork devices using DPDK-compatible driver============================================0000:02:05.0'82545EM Gigabit Ethernet Controller (Copper)' drv=ig`b_uio unused=e10000000:02:06.0'82545EM Gigabit Ethernet Controller (Copper)' drv=igb_uio unused=e1000Network devices using kernel driver===================================0000:02:01.0'82545EM Gigabit Ethernet Controller (Copper)'if=eno16777736 drv=e1000 unused=igb_uio *Active*0000:02:07.0'82545EM Gigabit Ethernet Controller (Copper)'if=eno67109432 drv=e1000 unused=igb_uio Other network devices=====================<none>
./tools/dpdk-devbind.py --bind=igb_uio 02:07.0
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转载于:https://www.cnblogs.com/yml435/p/6244052.html
