netmap
- 下载netmap代码
git clone https://github.com/luigirizzo/netmap
- 编译netmap
./configure --drivers=i40e
make
- 安装netmap模块
# rmmod i40e
# insmod ./netmap.ko
# insmod ./i40e/i40e.ko
./configure --drivers=ixgbe
# rmmod ixgbe
# insmod ./netmap.ko
# insmod ./ixgbe/ixgbe.ko
. tcpreplay
- 下载代码
git clone https://github.com/appneta/tcpreplay
2.) 编译安装
./configure --with-netmap=/home/zhangm/test/netmap/
make && make install
3. 使用
使用tcpreplay时增加--netmap参数, 则使用netmap模式
如:
tcpreplay -i ens1f0 -tK --loop 50000 --netmap /home/zhangm/pcap/bigFlows.pcap
-K, --preload-pcap Preloads packets into RAM before sending //提升效率
参考:
http://blog.csdn.net/fengfengdiandia/article/details/52594758
http://blog.csdn.net/wwh578867817/article/details/49559453
https://blog.cloudflare.com/kernel-bypass/
附:
如何获取网卡驱动名称, 如ens1f0接口?
[root@localhost build]# ethtool -i ens1f0
driver: i40e
version: 2.3.6
firmware-version: 5.05 0x8000288a 0.0.0
expansion-rom-version:
bus-info: 0000:02:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
[root@localhost build]# lspci | grep Eth
01:00.0 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
01:00.1 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
02:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02)
02:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02)
02:00.2 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02)
02:00.3 Ethernet controller: Intel Corporation Ethernet Controller X710 for 10GbE SFP+ (rev 02)
[root@localhost build]# lspci -s 02:00.0 -vvv | grep driver
Kernel driver in use: i40e
