深圳网站建设 设计贝尔利,低价网站制作企业,最新网站建设进程,wordpress+仿简书模板文章目录 1、DPDK环境搭建1.1、环境搭建1.2、编译DPDK 2、DPDK工作原理 1、DPDK环境搭建
1.1、环境搭建
工具准备#xff1a;VMware、ubuntu16.04。 #xff08;1#xff09;VMware添加两个网卡。桥接网卡作为 DPDK 运行的网卡#xff0c;NAT 网卡作为 ssh 连接的网卡。 … 文章目录 1、DPDK环境搭建1.1、环境搭建1.2、编译DPDK 2、DPDK工作原理 1、DPDK环境搭建
1.1、环境搭建
工具准备VMware、ubuntu16.04。 1VMware添加两个网卡。桥接网卡作为 DPDK 运行的网卡NAT 网卡作为 ssh 连接的网卡。 2修改网卡配置信息。找到虚拟机安装目录下的.vmx文件内容如下
.encoding GBK
config.version 8
virtualHW.version 16
mks.enable3d TRUE
pciBridge0.present TRUE
pciBridge4.present TRUE
pciBridge4.virtualDev pcieRootPort
pciBridge4.functions 8
pciBridge5.present TRUE
pciBridge5.virtualDev pcieRootPort
pciBridge5.functions 8
pciBridge6.present TRUE
pciBridge6.virtualDev pcieRootPort
pciBridge6.functions 8
pciBridge7.present TRUE
pciBridge7.virtualDev pcieRootPort
pciBridge7.functions 8
vmci0.present TRUE
hpet0.present TRUE
nvram Ubuntu64bit1604.nvram
virtualHW.productCompatibility hosted
powerType.powerOff soft
powerType.powerOn soft
powerType.suspend soft
powerType.reset soft
displayName Ubuntu64bit1604
usb.vbluetooth.startConnected TRUE
guestOS ubuntu-64
tools.syncTime FALSE
sound.autoDetect TRUE
sound.fileName -1
sound.present TRUE
numvcpus 4
cpuid.coresPerSocket 2
vcpu.hotadd TRUE
memsize 8192
mem.hotadd TRUE
scsi0.virtualDev lsilogic
scsi0.present TRUE
sata0.present TRUE
scsi0:0.fileName Ubuntu64bit1604.vmdk
scsi0:0.present TRUE
sata0:1.deviceType cdrom-image
sata0:1.fileName G:\迅雷下载\ubuntu-16.04.7-desktop-amd64.iso
sata0:1.present TRUE
usb.present TRUE
ehci.present TRUE
svga.graphicsMemoryKB 786432
ethernet0.addressType generated
ethernet0.virtualDev e1000
serial0.fileType thinprint
serial0.fileName thinprint
ethernet0.present TRUE
serial0.present TRUE
extendedConfigFile Ubuntu64bit1604.vmxf
floppy0.present FALSE
uuid.bios 56 4d fd 84 0c 40 c1 bb-af 47 c0 00 9f b9 71 74
uuid.location 56 4d fd 84 0c 40 c1 bb-af 47 c0 00 9f b9 71 74
scsi0:0.redo
pciBridge0.pciSlotNumber 17
pciBridge4.pciSlotNumber 21
pciBridge5.pciSlotNumber 22
pciBridge6.pciSlotNumber 23
pciBridge7.pciSlotNumber 24
scsi0.pciSlotNumber 16
usb.pciSlotNumber 32
ethernet0.pciSlotNumber 33
sound.pciSlotNumber 34
ehci.pciSlotNumber 35
vmci0.pciSlotNumber 36
sata0.pciSlotNumber 37
svga.vramSize 268435456
vmotion.checkpointFBSize 4194304
vmotion.checkpointSVGAPrimarySize 268435456
ethernet0.generatedAddress 00:0C:29:B9:71:74
ethernet0.generatedAddressOffset 0
vmci0.id -1615236748
monitor.phys_bits_used 43
cleanShutdown TRUE
softPowerOff FALSE
usb:1.speed 2
usb:1.present TRUE
usb:1.deviceType hub
usb:1.port 1
usb:1.parent -1
svga.guestBackedPrimaryAware TRUE
tools.remindInstall FALSE
gui.lastPoweredViewMode fullscreen
toolsInstallManager.updateCounter 2
toolsInstallManager.lastInstallError 0
sata0:1.startConnected TRUE
isolation.tools.hgfs.disable FALSE
sharedFolder0.present TRUE
sharedFolder0.enabled TRUE
sharedFolder0.readAccess TRUE
sharedFolder0.writeAccess TRUE
sharedFolder0.hostPath G:\share
sharedFolder0.guestName share
sharedFolder0.expiration never
sharedFolder.maxNum 1
usb:0.present TRUE
usb:0.deviceType hid
usb:0.port 0
usb:0.parent -1
ethernet1.connectionType nat
ethernet1.addressType generated
ethernet1.virtualDev e1000
ethernet1.present TRUE将 ethernet0.virtualDev 由 e1000 修改 vmxnet3因为 vmware 的 vmxnet3 支持多队列网卡同时添加一行ethernet0.wakeOnPcktRcv “TRUE”
ethernet0.virtualDev vmxnet3
ethernet0.wakeOnPcktRcv TRUE重启虚拟机 查看网卡ethtool -i eth0, 成功被被配置为vmxnet3 3查看是否支持多队列网卡
cat /proc/interrupts | grep eth056: 1181 0 0 12784 PCI-MSI 1572864-edge eth0-rxtx-057: 0 193 0 22 PCI-MSI 1572865-edge eth0-rxtx-158: 41 36 0 0 PCI-MSI 1572866-edge eth0-rxtx-259: 0 5 13 0 PCI-MSI 1572867-edge eth0-rxtx-360: 0 0 0 0 PCI-MSI 1572868-edge eth0-event-4这里虚拟机有多少个CPU就有多少个队列。
关于多队列网卡请查看文章
4修改 ubuntu 系统的启动参数。
sudo vim /etc/default/grub主要是在GRUB_CMDLINE_LINUX添加如下内容
default_hugepages1G hugepagesz2M hugepages1024如果是物理主机则添加的是如下内容
default_hugepages1G hugepagesz1G hugepages20 isolcpus0-7示例
# If you change this file, run update-grub afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n Simple configurationGRUB_DEFAULT0
GRUB_HIDDEN_TIMEOUT0
GRUB_HIDDEN_TIMEOUT_QUIETtrue
GRUB_TIMEOUT10
GRUB_DISTRIBUTORlsb_release -i -s 2 /dev/null || echo Debian
GRUB_CMDLINE_LINUX_DEFAULTquiet splash
GRUB_CMDLINE_LINUXnet.ifnames0 biosdevname0 default_hugepages1G hugepagesz2M hugepages1024# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM0x01234567,0xfefefefe,0x89abcdef,0xefefefef# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINALconsole# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command vbeinfo
#GRUB_GFXMODE640x480# Uncomment if you dont want GRUB to pass rootUUIDxxx parameter to Linux
#GRUB_DISABLE_LINUX_UUIDtrue# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERYtrue# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE480 440 1修改完之后需要重启。
1.2、编译DPDK
1下载 dpdk随便一个版本不同版本直接子系统接口会有差异这里下载的是19.08.2版本
wget https://fast.dpdk.org/rel/dpdk-19.08.2.tar.xz2解压源码
tar -xvf dpdk-19.08.2.tar.xz
cd dpdk-19.08.2
lsapp buildtools config devtools doc drivers examples GNUmakefile kernel lib license
MAINTAINERS Makefile meson.build meson_options.txt mk README usertools VERSION3安装依赖库
sudo apt-get install numactl
sudo apt-get install libnuma-dev
sudo apt-get install net-tools4通过 usertools/dpdk-setup.sh64 位系统选择 39编译完会在当前目录多出 x86_64-native-linux-gcc 的文件夹。
----------------------------------------------------------Step 1: Select the DPDK environment to build
----------------------------------------------------------
[1] arm64-armada-linuxapp-gcc
[2] arm64-armada-linux-gcc
[3] arm64-armv8a-linuxapp-clang
[4] arm64-armv8a-linuxapp-gcc
[5] arm64-armv8a-linux-clang
[6] arm64-armv8a-linux-gcc
[7] arm64-bluefield-linuxapp-gcc
[8] arm64-bluefield-linux-gcc
[9] arm64-dpaa2-linuxapp-gcc
[10] arm64-dpaa2-linux-gcc
[11] arm64-dpaa-linuxapp-gcc
[12] arm64-dpaa-linux-gcc
[13] arm64-octeontx2-linuxapp-gcc
[14] arm64-octeontx2-linux-gcc
[15] arm64-stingray-linuxapp-gcc
[16] arm64-stingray-linux-gcc
[17] arm64-thunderx2-linuxapp-gcc
[18] arm64-thunderx2-linux-gcc
[19] arm64-thunderx-linuxapp-gcc
[20] arm64-thunderx-linux-gcc
[21] arm64-xgene1-linuxapp-gcc
[22] arm64-xgene1-linux-gcc
[23] arm-armv7a-linuxapp-gcc
[24] arm-armv7a-linux-gcc
[25] i686-native-linuxapp-gcc
[26] i686-native-linuxapp-icc
[27] i686-native-linux-gcc
[28] i686-native-linux-icc
[29] ppc_64-power8-linuxapp-gcc
[30] ppc_64-power8-linux-gcc
[31] x86_64-native-bsdapp-clang
[32] x86_64-native-bsdapp-gcc
[33] x86_64-native-freebsd-clang
[34] x86_64-native-freebsd-gcc
[35] x86_64-native-linuxapp-clang
[36] x86_64-native-linuxapp-gcc
[37] x86_64-native-linuxapp-icc
[38] x86_64-native-linux-clang
[39] x86_64-native-linux-gcc
[40] x86_64-native-linux-icc
[41] x86_x32-native-linuxapp-gcc
[42] x86_x32-native-linux-gcc----------------------------------------------------------Step 2: Setup linux environment
----------------------------------------------------------
[43] Insert IGB UIO module
[44] Insert VFIO module
[45] Insert KNI module
[46] Setup hugepage mappings for non-NUMA systems
[47] Setup hugepage mappings for NUMA systems
[48] Display current Ethernet/Baseband/Crypto device settings
[49] Bind Ethernet/Baseband/Crypto device to IGB UIO module
[50] Bind Ethernet/Baseband/Crypto device to VFIO module
[51] Setup VFIO permissions----------------------------------------------------------Step 3: Run test application for linux environment
----------------------------------------------------------
[52] Run test application ($RTE_TARGET/app/test)
[53] Run testpmd application in interactive mode ($RTE_TARGET/app/testpmd)----------------------------------------------------------Step 4: Other tools
----------------------------------------------------------
[54] List hugepage info from /proc/meminfo----------------------------------------------------------Step 5: Uninstall and system cleanup
----------------------------------------------------------
[55] Unbind devices from IGB UIO or VFIO driver
[56] Remove IGB UIO module
[57] Remove VFIO module
[58] Remove KNI module
[59] Remove hugepage mappings[60] Exit Script5导出dpdk环境变量。
cd dpdk路径
# 如 dpdk/dpdk-stable-19.08.2/
# 切换root权限
sudo su
export RTE_SDKdpdk路径
export RTE_TARGETx86_64-native-linux-gcc6配置dpdk。
./usertools/dpdk-setup.sh依次执行 43加载DPDK UIO 模块即插入driver 44加载VFIO模块也是一种driver 45加载KNI模块将一些数据写回内核 46设置巨页可以不需要频繁页交换512 47设置巨页可512 49执行之前需要eth0 down掉执行sudo ifconfig eth0 down使绑定dpdkpci地址对应eth0的如0000:03:00.0 60退出
2、DPDK工作原理
网络上所有的数据传输都要经过网卡网卡将模拟信号转换为数字信号也就是将物理层信号转换为数据链路层信号。 这个过程会进行两次拷贝第一次是从网卡拷贝到NIC用于组织sk_buffer第二次是从内核空间拷贝到用户空间应用程序处理数据。这些拷贝需要CPU的参与会占用CPU资源。
DPDK的作用
是把网卡是数据映射到内存。而且DPDK提供巨页机制将原来的4K每页提升到2M、1G的巨页。控制多队列网卡提高性能在启动线程时做了CPU亲缘性。DPDK提高一种KNIKernel Network Interface方式将不关注的数据写回内核让内核处理。 DPDK能用来做一下应用
路由器。网络协议栈的基石部分。防火墙。VPN。
DPDK的优势
有专门的公司维护有保障。问题能有快速解决迭代出新的版本。文档齐全。
