Linux下的qperf测量网络带宽和延迟和iptraf网卡流量监控

￡神魔★判官ぃ 2022-06-16 02:11 246阅读 0赞

1.   qperf命令测试两个节点间建立tcp或者udp能够跑的带宽与延迟，也能够查看两个节点服务器的cpu型号与系统具体版本  
  
2.    在两台linux服务器都安装qperf包， yum  -y  install  qperf   
  
3.    在A服务器上运行qperf  &作为服务器节点，由其他服务器来连接测试，默认监听tcp的19765端口。  
  
![16.JPG][]   
4.    在B服务器上运行 qperf  X.X.X.X（A服务器的ip地址）  tcp\_bw  tcp\_lat  conf  
  
  
       tcp\_bw：B与A节点建立tcp连接能够跑的带宽（B服务器带宽为10M）。  
  
       tcp\_lat:  B与A节点的延时。  
  
      conf：显示双方的配置，包括cpu型号及系统版本。  
  
![17.JPG][]   
显示A与B节点建立一个tcp的连接中间带宽，在B节点能跑到712KB/sec,延迟为90.9ms   
  
5.    我们可以透过改变消息的大小（msg\_size），比如从1个字节到64K，每次倍增的方式，来观察带宽和延迟的变化情况。  
   
6.    qperf  X.X.X.X（A服务器的ip地址） -oo msg\_size:1:64K:\*2  tcp\_bw  tcp\_lat.见下图  
  
我们可以透过改变消息的大小（msg\_size），比如从1个字节到64K，每次倍增的方式，来观察带宽和延迟的变化情况  
  
\[root@localhost ~\]\#   qperf 192.168.239.140 -oo msg\_size:1:64K:\*2  -vu tcp\_lat  
   
  
 ![18.JPG][]

### iptraf的参数列表 ###

iptraf后面加上不同的参数，可以起到不同的作用，下面是iptraf的参数命令列表：

<table style="word-wrap:break-word; border-collapse:collapse; padding:0px; margin:0px auto 10px; font-size:12px; color:rgb(85,85,85); font-family:宋体,&quot;background-color:#FFFFFF;&quot;"> 
 <thead style="word-wrap:break-word; padding:0px; margin:0px"> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <th style="word-wrap:break-word; padding:5px 10px; margin:0px; text-align:left; background:rgb(247,247,247); border-width:2px 1px 1px; border-style:solid; border-color:rgb(187,187,187) rgb(221,221,221) rgb(221,221,221)"> 参数命令</th> 
   <th style="word-wrap:break-word; padding:5px 10px; margin:0px; text-align:left; background:rgb(247,247,247); border-width:2px 1px 1px; border-style:solid; border-color:rgb(187,187,187) rgb(221,221,221) rgb(221,221,221)"> 作用</th> 
  </tr> 
 </thead> 
 <tbody style="word-wrap:break-word; padding:0px; margin:0px"> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -i iface</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 网络接口：立即在指定网络接口上开启IP流量监视,iface为all指监视所有的网络接口，iface指相应的interface</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -g</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 立即开始生成网络接口的概要状态信息</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -d iface</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 网络接口：在指定网络接口上立即开始监视明细的网络流量信息,iface指相应的interface</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -s iface</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 网络接口：在指定网络接口上立即开始监视TCP和UDP网络流量信息,iface指相应的interface</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -z iface</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 网络接口：在指定网络接口上显示包计数,iface指相应的interface</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -l iface</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 网络接口：在指定网络接口上立即开始监视局域网工作站信息,iface指相应的interface</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -t timeout</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 时间：指定iptraf指令监视的时间，timeout指监视时间的minute数</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -B</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 将标注输出重新定向到“/dev/null”，关闭标注输入，将程序作为后台进程运行</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -L logfile</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 指定一个文件用于记录所有命令行的log，默认文件是地址：/var/log/iptraf</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -I interval</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 指定记录log的时间间隔（单位是minute），不包括IP traffic monitor</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -u</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 允许使用不支持的接口作为以太网设备</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -f</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 清空所有计数器</td> 
  </tr> 
  <tr style="word-wrap:break-word; padding:0px; margin:0px"> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> -h</td> 
   <td style="word-wrap:break-word; line-height:1.5; font-family:&quot;sans serif&quot;,tahoma,verdana,helvetica; padding:5px 10px; margin:0px; border:1px solid rgb(221,221,221)"> 显示帮助信息</td> 
  </tr> 
 </tbody> 
</table>

1) 按IP数据连接查看eth0网卡中的数据通信情况  
\[root@localhost ~\]\# iptraf -i eth0  
  
2) 按不同网络接口查看系统中的总体数据通信情况  
\[root@localhost ~\]\# iptraf -g  
  
3) 按TCP、UDP协议分别查看数据通信情况  
\[root@localhost ~\]\# iptraf –s eth0  
  
4) 按数据包大小查看eth0网卡中的数据通信情况  
\[root@localhost ~\]\# iptraf –z eth0  
  
5) 查看eth0网卡中各类网络通信数据的详细统计信息，并写入到日志文件  
\[root@localhost ~\]\# iptraf -d eth0 -L /var/log/iptraf/traflog.eth0

[16.JPG]: /images/20220616/880b91ee12a647c4889aa7c9a9133fa8.png
[17.JPG]: /images/20220616/c287c1dfb0374d1fa863dbfbf7acc9a0.png
[18.JPG]: /images/20220616/fdcb62eef8024e06b87d356fa7e60154.png