(资料图片仅供参考)

1.什么是WonderShaper

WonderShaper是用来对特定网卡进行快速限速的工具，它实际是对Linux的tc命令进行封装后的shell脚本，所以使用成本比tc更低，更容易上手，以下配合测速工具speedtest一起使用

2.如何安装WonderShaper

#直接拉取wondershaper，开箱即用git clone https://github.com/magnific0/wondershaper.gitroot@****-5491:/home/soft/wondershaper# ./wondershaper -vVersion 1.4.1root@****-5491:/home/soft/wondershaper# #网速测试工具speedtest安装(Ubuntu)apt install speedtest-cli--yum install speedtest-cli (centos)3.WonderShaper使用帮助

root@****-5491:/home/soft/wondershaper# ./wondershaper -hUSAGE: ./wondershaper [-hcs] [-a ] [-d ] [-u ]Limit the bandwidth of an adapterOPTIONS: -h Show this message 【帮助信息】 -a Set the adapter 【指定网卡接口】 -d Set maximum download rate (in Kbps) and/or 【限制下载速度(Kbps)】 -u Set maximum upload rate (in Kbps) 【限制上传速度(Kbps)】 -p Use presets in "/etc/systemd/wondershaper.conf" -f Use alternative preset file -c Clear the limits from adapter 【清除指定网卡规则，用于取消限速】 -s Show the current status of adapter 【显示当前网卡的状态】 -v Show the current version 【显示当前版本】 Configure HIPRIODST in "/etc/systemd/wondershaper.conf" for hosts requiring high priority i.e. in case ssh uses dport 443.MODES: wondershaper -a -d -u wondershaper -c -a wondershaper -s -a EXAMPLES: 【使用示例】 wondershaper -a eth0 -d 1024 -u 512 【设置网卡eth0的上行速度为512kbps，下行速度为1024kbps】 wondershaper -a eth0 -u 512 【只设置上行速度为512kbps】 wondershaper -c -a eth0 【清除网卡eth0的规则】 wondershaper -p -f foo.conf 【设置指定的配置文件】4.WonderShaper使用示例

4.1查看网卡状态

root@****-5491:/home/soft/wondershaper# ifconfig eno1eno1: flags=4163 mtu 1500 inet 192.168.5.103 netmask 255.255.255.0 broadcast 192.168.5.255 inet6 fe80::2c93:21f9:1931:304 prefixlen 64 scopeid 0x20 ether c8:f7:50:7e:50:48 txqueuelen 1000 (Ethernet) RX packets 7748809 bytes 1034513376 (1.0 GB) RX errors 0 dropped 439 overruns 0 frame 0 TX packets 15528838 bytes 4784318169 (4.7 GB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 16 memory 0x91500000-91520000 root@****-5491:/home/soft/wondershaper# ./wondershaper -s -a eno1qdisc fq_codel 0: root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn Sent 4528052159 bytes 14890189 pkt (dropped 0, overlimits 0 requeues 4224) backlog 0b 0p requeues 4224 maxpacket 66616 drop_overlimit 0 new_flow_count 35953 ecn_mark 0 new_flows_len 0 old_flows_len 0--测试网速root@****-5491:/home/soft/wondershaper# speedtestRetrieving speedtest.net configuration...Testing from China Telecom (120.36.98.11)...Retrieving speedtest.net server list...Selecting best server based on ping...Hosted by Fuzhou China Mobile,Fujian (Fuzhou) [589.19 km]: 14.449 msTesting download speed................................................................................-- 下载网速是171.43 Mbit/s，Download: 171.43 Mbit/sTesting upload speed......................................................................................................-- 上传网速是4.15 Mbit/sUpload: 4.15 Mbit/s

4.2限制网卡速度（单位Kbps）

-- 下行2048kbps=2 Mbit/s,上行 1024kbps=1 Mbit/sroot@****-5491:/home/soft/wondershaper# ./wondershaper -a eno1 -d 2048 -u 1024--测试网速root@****e-5491:/home/soft/wondershaper# speedtestRetrieving speedtest.net configuration...Testing from China Telecom (120.36.98.11)...Retrieving speedtest.net server list...Selecting best server based on ping...Hosted by Far EasTone Telecom (Miaoli City) [722.10 km]: 174.383 msTesting download speed................................................................................-- 下行速度Download: 1.80 Mbit/sTesting upload speed......................................................................................................--上行速度Upload: 1.28 Mbit/sroot@****-5491:/home/soft/wondershaper#

4.3取消限速

--取消限速root@****-5491:/home/soft/wondershaper# ./wondershaper -c -a eno1-- 查看网卡状态root@****-5491:/home/soft/wondershaper# ./wondershaper -s -a eno1qdisc fq_codel 0: root refcnt 2 limit 10240p flows 1024 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn Sent 123022 bytes 471 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 maxpacket 0 drop_overlimit 0 new_flow_count 0 ecn_mark 0 new_flows_len 0 old_flows_len 0-- 测试网速root@****-5491:/home/soft/wondershaper# speedtestRetrieving speedtest.net configuration...Testing from China Telecom (120.36.98.11)...Retrieving speedtest.net server list...Selecting best server based on ping...Hosted by Far EasTone Telecom (Miaoli City) [722.10 km]: 173.886 msTesting download speed................................................................................Download: 11.29 Mbit/sTesting upload speed......................................................................................................Upload: 2.93 Mbit/sroot@****-5491:/home/soft/wondershaper#5.WonderShaper在测试中的应用

测试项目：某内部数据库迁移工具

测试目的：数据迁移中，对目标端进行限速，当取消限速后，传输速度可以恢复

测试步骤：起迁移进程，在目标端服务器上用WonderShaper工具进行限速：

-- 只限制下行速度[#22#root@**** ~/wondershaper]22 ./wondershaper -a enp0s3 -d 100

测试结果：限速后，写目标库单位写入行数和单位写入字节数都急剧下降，如下图：

取消限速，恢复网络后，传输速率慢慢恢复：6.网速单位转换

1KB/s = 8kbps = 8kb/s比如一般100M的宽带，实际是100Mbps=(100/8) MB/s=12.5 MB/s7.总结

使用WonderShaper对网卡进行限速，在测试时可以针对性的指定网卡，指定上传速度或者指定下载速度，在测试中上传和下载速度是互不影响的，可以只限制一方；且WonderShaper工具操作简单好入手，是个不错的工具。

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