网络测试,带宽测试,流量测试
时间:2022-05-03
本文章向大家介绍网络测试,带宽测试,流量测试,主要内容包括第 14 章 网络测试、基本概念、基础应用、原理机制和需要注意的事项等,并结合实例形式分析了其使用技巧,希望通过本文能帮助到大家理解应用这部分内容。
节选自《Netkiller Testing 手札》网络测试章节
第 14 章 网络测试
目录
- 14.1. iperf3 - perform network throughput tests
-
- 14.1.1. Server
- 14.1.2. Client
- 14.2. Clumsy 差网络环境模拟工具
14.1. iperf3 - perform network throughput tests
Measurement tool for TCP/UDP bandwidth performance
Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of various parameters and UDP characteristics. Iperf reports bandwidth, delay jitter, data-gram loss.
iperf3 的使用非常简单,需要两台电脑,一台作为 server,另一台作为 client,启动有发送数据,将结果反馈给用户
iperf3: parameter error - must either be a client (-c) or server (-s)
Usage: iperf [-s|-c host] [options]
iperf [-h|--help] [-v|--version]
Server or Client:
-p, --port # server port to listen on/connect to
-f, --format [kmgKMG] format to report: Kbits, Mbits, KBytes, MBytes
-i, --interval # seconds between periodic bandwidth reports
-F, --file name xmit/recv the specified file
-A, --affinity n/n,m set CPU affinity
-B, --bind <host> bind to a specific interface
-V, --verbose more detailed output
-J, --json output in JSON format
-d, --debug emit debugging output
-v, --version show version information and quit
-h, --help show this message and quit
Server specific:
-s, --server run in server mode
-D, --daemon run the server as a daemon
-1, --one-off handle one client connection then exit
Client specific:
-c, --client <host> run in client mode, connecting to <host>
-u, --udp use UDP rather than TCP
-b, --bandwidth #[KMG][/#] target bandwidth in bits/sec (0 for unlimited)
(default 1 Mbit/sec for UDP, unlimited for TCP)
(optional slash and packet count for burst mode)
-t, --time # time in seconds to transmit for (default 10 secs)
-n, --bytes #[KMG] number of bytes to transmit (instead of -t)
-k, --blockcount #[KMG] number of blocks (packets) to transmit (instead of -t or -n)
-l, --len #[KMG] length of buffer to read or write
(default 128 KB for TCP, 8 KB for UDP)
-P, --parallel # number of parallel client streams to run
-R, --reverse run in reverse mode (server sends, client receives)
-w, --window #[KMG] set window size / socket buffer size
-C, --linux-congestion <algo> set TCP congestion control algorithm (Linux only)
-M, --set-mss # set TCP maximum segment size (MTU - 40 bytes)
-N, --nodelay set TCP no delay, disabling Nagle's Algorithm
-4, --version4 only use IPv4
-6, --version6 only use IPv6
-S, --tos N set the IP 'type of service'
-L, --flowlabel N set the IPv6 flow label (only supported on Linux)
-Z, --zerocopy use a 'zero copy' method of sending data
-O, --omit N omit the first n seconds
-T, --title str prefix every output line with this string
--get-server-output get results from server
[KMG] indicates options that support a K/M/G suffix for kilo-, mega-, or giga-
iperf3 homepage at: http://software.es.net/iperf/
Report bugs to: https://github.com/esnet/iperf
14.1.1. Server
[root@localhost ~]# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 127.0.0.1, port 38188
[ 5] local 127.0.0.1 port 5201 connected to 127.0.0.1 port 38189
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 4.74 GBytes 40.7 Gbits/sec
[ 5] 1.00-2.00 sec 5.00 GBytes 43.0 Gbits/sec
[ 5] 2.00-3.00 sec 5.00 GBytes 42.9 Gbits/sec
[ 5] 3.00-4.00 sec 5.02 GBytes 43.1 Gbits/sec
[ 5] 4.00-5.00 sec 5.02 GBytes 43.2 Gbits/sec
[ 5] 5.00-6.00 sec 5.02 GBytes 43.1 Gbits/sec
[ 5] 6.00-7.00 sec 5.05 GBytes 43.4 Gbits/sec
[ 5] 7.00-8.00 sec 5.02 GBytes 43.1 Gbits/sec
[ 5] 8.00-9.00 sec 5.08 GBytes 43.6 Gbits/sec
[ 5] 9.00-10.00 sec 5.03 GBytes 43.2 Gbits/sec
[ 5] 10.00-10.04 sec 196 MBytes 43.3 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 5] 0.00-10.04 sec 50.2 GBytes 42.9 Gbits/sec 0 sender
[ 5] 0.00-10.04 sec 50.2 GBytes 42.9 Gbits/sec receiver
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
输出JSON格式的报告
[root@localhost ~]# iperf3 -s --json
{
"start": {
"connected": [{
"socket": 5,
"local_host": "127.0.0.1",
"local_port": 5201,
"remote_host": "127.0.0.1",
"remote_port": 38191
}],
"version": "iperf 3.0.11",
"system_info": "Linux localhost.localdomain 3.10.0-327.10.1.el7.x86_64 #1 SMP Tue Feb 16 17:03:50 UTC 2016 x86_64 x86_64 x86_64 GNU/Linuxn",
"timestamp": {
"time": "Fri, 24 Jun 2016 08:12:35 GMT",
"timesecs": 1466755955
},
"accepted_connection": {
"host": "127.0.0.1",
"port": 38190
},
"cookie": "localhost.localdomain.1466755955.214",
"tcp_mss_default": 21888,
"test_start": {
"protocol": "TCP",
"num_streams": 1,
"blksize": 131072,
"omit": 0,
"duration": 10,
"bytes": 0,
"blocks": 0,
"reverse": 0
}
},
"intervals": [{
"streams": [{
"socket": 5,
"start": 0,
"end": 1.00002,
"seconds": 1.00002,
"bytes": 5104271292,
"bits_per_second": 4.08333e+10,
"omitted": false
}],
"sum": {
"start": 0,
"end": 1.00002,
"seconds": 1.00002,
"bytes": 5104271292,
"bits_per_second": 4.08333e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 1.00002,
"end": 2.00002,
"seconds": 1,
"bytes": 5400688104,
"bits_per_second": 43205504832,
"omitted": false
}],
"sum": {
"start": 1.00002,
"end": 2.00002,
"seconds": 1,
"bytes": 5400688104,
"bits_per_second": 43205504832,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 2.00002,
"end": 3.00002,
"seconds": 0.999996,
"bytes": 5386797056,
"bits_per_second": 4.30946e+10,
"omitted": false
}],
"sum": {
"start": 2.00002,
"end": 3.00002,
"seconds": 0.999996,
"bytes": 5386797056,
"bits_per_second": 4.30946e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 3.00002,
"end": 4.00002,
"seconds": 1,
"bytes": 5392957440,
"bits_per_second": 4.31435e+10,
"omitted": false
}],
"sum": {
"start": 3.00002,
"end": 4.00002,
"seconds": 1,
"bytes": 5392957440,
"bits_per_second": 4.31435e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 4.00002,
"end": 5.00003,
"seconds": 1.00001,
"bytes": 5422972928,
"bits_per_second": 4.33836e+10,
"omitted": false
}],
"sum": {
"start": 4.00002,
"end": 5.00003,
"seconds": 1.00001,
"bytes": 5422972928,
"bits_per_second": 4.33836e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 5.00003,
"end": 6,
"seconds": 0.999978,
"bytes": 5445845060,
"bits_per_second": 4.35677e+10,
"omitted": false
}],
"sum": {
"start": 5.00003,
"end": 6,
"seconds": 0.999978,
"bytes": 5445845060,
"bits_per_second": 4.35677e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 6,
"end": 7.00003,
"seconds": 1.00003,
"bytes": 5420875776,
"bits_per_second": 4.33657e+10,
"omitted": false
}],
"sum": {
"start": 6,
"end": 7.00003,
"seconds": 1.00003,
"bytes": 5420875776,
"bits_per_second": 4.33657e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 7.00003,
"end": 8.00001,
"seconds": 0.999975,
"bytes": 5389877180,
"bits_per_second": 4.31201e+10,
"omitted": false
}],
"sum": {
"start": 7.00003,
"end": 8.00001,
"seconds": 0.999975,
"bytes": 5389877180,
"bits_per_second": 4.31201e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 8.00001,
"end": 9.00001,
"seconds": 1,
"bytes": 5408030720,
"bits_per_second": 4.32641e+10,
"omitted": false
}],
"sum": {
"start": 8.00001,
"end": 9.00001,
"seconds": 1,
"bytes": 5408030720,
"bits_per_second": 4.32641e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 9.00001,
"end": 10,
"seconds": 1.00001,
"bytes": 5400166400,
"bits_per_second": 4.32009e+10,
"omitted": false
}],
"sum": {
"start": 9.00001,
"end": 10,
"seconds": 1.00001,
"bytes": 5400166400,
"bits_per_second": 4.32009e+10,
"omitted": false
}
}, {
"streams": [{
"socket": 5,
"start": 10,
"end": 10.0381,
"seconds": 0.0380569,
"bytes": 206635076,
"bits_per_second": 4.34371e+10,
"omitted": false
}],
"sum": {
"start": 10,
"end": 10.0381,
"seconds": 0.0380569,
"bytes": 206635076,
"bits_per_second": 4.34371e+10,
"omitted": false
}
}],
"end": {
"streams": [{
"sender": {
"socket": 5,
"start": 0,
"end": 10.0381,
"seconds": 10.0381,
"bytes": 53979117032,
"bits_per_second": 4.30195e+10,
"retransmits": 0
},
"receiver": {
"socket": 5,
"start": 0,
"end": 10.0381,
"seconds": 10.0381,
"bytes": 53979117032,
"bits_per_second": 4.30195e+10
}
}],
"sum_sent": {
"start": 0,
"end": 10.0381,
"seconds": 10.0381,
"bytes": 53979117032,
"bits_per_second": 4.30195e+10,
"retransmits": 0
},
"sum_received": {
"start": 0,
"end": 10.0381,
"seconds": 10.0381,
"bytes": 53979117032,
"bits_per_second": 4.30195e+10
},
"cpu_utilization_percent": {
"host_total": 19.6287,
"host_user": 0.628708,
"host_system": 19.02,
"remote_total": 99.411,
"remote_user": 1.25979,
"remote_system": 98.226
}
}
}
14.1.2. Client
[root@localhost ~]# iperf3 -c 127.0.0.1
Connecting to host 127.0.0.1, port 5201
[ 4] local 127.0.0.1 port 38189 connected to 127.0.0.1 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.00 sec 4.93 GBytes 42.4 Gbits/sec 0 1.19 MBytes
[ 4] 1.00-2.00 sec 5.00 GBytes 42.9 Gbits/sec 0 1.19 MBytes
[ 4] 2.00-3.00 sec 5.00 GBytes 42.9 Gbits/sec 0 1.19 MBytes
[ 4] 3.00-4.00 sec 5.02 GBytes 43.1 Gbits/sec 0 1.19 MBytes
[ 4] 4.00-5.00 sec 5.03 GBytes 43.2 Gbits/sec 0 1.19 MBytes
[ 4] 5.00-6.00 sec 5.02 GBytes 43.1 Gbits/sec 0 1.19 MBytes
[ 4] 6.00-7.00 sec 5.05 GBytes 43.4 Gbits/sec 0 1.19 MBytes
[ 4] 7.00-8.00 sec 5.02 GBytes 43.1 Gbits/sec 0 1.81 MBytes
[ 4] 8.00-9.00 sec 5.08 GBytes 43.6 Gbits/sec 0 1.81 MBytes
[ 4] 9.00-10.00 sec 5.03 GBytes 43.2 Gbits/sec 0 1.81 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.00 sec 50.2 GBytes 43.1 Gbits/sec 0 sender
[ 4] 0.00-10.00 sec 50.2 GBytes 43.1 Gbits/sec receiver
iperf Done.
- Swift开发React Native组件
- 深入理解Android插件化技术
- Kotlin DSL详解
- 大规模异常滥用检测:基于局部敏感哈希算法——来自Uber Engineering的实践
- 事务与一致性:刚性or柔性?
- 文本相似度算法小结
- return的值都去哪了?去哪了,“谁伸手了,return的结果就给谁”
- 面试时对方问你,“xxx需求你是怎么做的”?你可以这样回答
- vue.js的条件渲染,其实就是模板里面写if else
- vue.js的插槽 - slot 是啥?要我说,它就是个“形参”
- Vue2.0,lifeCycle ['laɪfˌsaɪkl] -- 生命周期大白话~
- 什么生命周期,在我看来就是各种回调 &&电商项目作业检查 -- 张xx
- 小知识点 -- nodejs中的console.log打印输出在哪里?
- 学js少看书肯定是不成的,要多看。
- JavaScript 教程
- JavaScript 编辑工具
- JavaScript 与HTML
- JavaScript 与Java
- JavaScript 数据结构
- JavaScript 基本数据类型
- JavaScript 特殊数据类型
- JavaScript 运算符
- JavaScript typeof 运算符
- JavaScript 表达式
- JavaScript 类型转换
- JavaScript 基本语法
- JavaScript 注释
- Javascript 基本处理流程
- Javascript 选择结构
- Javascript if 语句
- Javascript if 语句的嵌套
- Javascript switch 语句
- Javascript 循环结构
- Javascript 循环结构实例
- Javascript 跳转语句
- Javascript 控制语句总结
- Javascript 函数介绍
- Javascript 函数的定义
- Javascript 函数调用
- Javascript 几种特殊的函数
- JavaScript 内置函数简介
- Javascript eval() 函数
- Javascript isFinite() 函数
- Javascript isNaN() 函数
- parseInt() 与 parseFloat()
- escape() 与 unescape()
- Javascript 字符串介绍
- Javascript length属性
- javascript 字符串函数
- Javascript 日期对象简介
- Javascript 日期对象用途
- Date 对象属性和方法
- Javascript 数组是什么
- Javascript 创建数组
- Javascript 数组赋值与取值
- Javascript 数组属性和方法