iperf3实践
The basic commands are the same for iperf and iperf3:
Server: | |
iperf/iperf3 -s | Start server on the default port |
iperf -s -w 32M -D / iperf3 -s -D | Start server with larger TCP window, and in daemon mode |
iperf -i1 -u -s -p 5003 / iperf3 -s -p 5003 | Start UDP server on port 5003, and give 1 sec interval reports |
Client | |
iperf/iperf3 -c remotehost -i 1 -t 30 | Run a 30 second tests, giving results every 1 second |
iperff/iperf3 -c remotehost -i 1 -t 20 -r | Run a test from remotehost to localhost |
iperf/iperf3 -c remotehost -i 1 -t 20 -w 32M -P 4 | Run a test with 4 parallel streams, and with a 32M TCP buffer |
iperf/iperf3 -c remotehost -u -i 1 -b 200M | Run a 200 Mbps UDP test |
iperf3 adds a number of additional features. For example, the -i mode now reports TCP retransmit info (and is on by default), and the verbose mode now gives a lot of useful information on CPU usage, etc. Other new options include:
Client: | |
iperf3 -c remotehost -i.5 -0 2 | Run the test for 2 seconds before collecting results, to allow forTCP slowstart to finish. (Omit mode) |
iperf3 -Z -c remotehost | Use the sendfile() system call for "Zero Copy" mode. This uses much less CPU. |
iperf3 -c 192.168.12.12 -T s1 & iperf3 -c 192.168.12.13 -T s2 | Run tests to multiple interfaces at once, and label the lines to indicate which test is which |
iperf3 -c remotehost -J | Output the results in JSON format for easy parsing. |
iperf3 -A 4,4 -c remotehost | Set the CPU affinity for the sender,receiver (cores are numbered from 0). This has the same affect as doing 'numactl -C 4 iperf3'. |
iperf3 -c 10.20.1.20 -A2,2 -T "1" & ; iperf3 -c 10.20.1.20 -p 5400 -A3,3 -T "2" & |
Run 2 streams on 2 different cores, and label each using the "-T" flag. |
iperf3 thread model
In order to keep the code as simple and maintainable as possible, iperf3 is single threaded. This means that that you may be CPU-bound on some hosts, or on 40G/100G NICs. To run parallel stream iperf3 on mutiple cores, use the method shown in the table above.
实践:
[root@CentOS7 iperf-3.1.2]# iperf3 -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.56.106, port 58465
[ 5] local 192.168.56.103 port 5201 connected to 192.168.56.106 port 58466
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 49.9 MBytes 418 Mbits/sec
[ 5] 1.00-2.00 sec 175 MBytes 1.47 Gbits/sec
[ 5] 2.00-3.00 sec 148 MBytes 1.25 Gbits/sec
[ 5] 3.00-4.00 sec 164 MBytes 1.38 Gbits/sec
[ 5] 4.00-5.00 sec 234 MBytes 1.96 Gbits/sec
[ 5] 5.00-6.00 sec 227 MBytes 1.91 Gbits/sec
[ 5] 6.00-7.00 sec 222 MBytes 1.86 Gbits/sec
[ 5] 7.00-8.00 sec 169 MBytes 1.42 Gbits/sec
[ 5] 8.00-9.00 sec 143 MBytes 1.20 Gbits/sec
[ 5] 9.00-10.00 sec 226 MBytes 1.90 Gbits/sec
[ 5] 10.00-11.00 sec 189 MBytes 1.58 Gbits/sec
[ 5] 11.00-12.00 sec 101 MBytes 850 Mbits/sec
[ 5] 12.00-13.00 sec 188 MBytes 1.58 Gbits/sec
[ 5] 13.00-14.00 sec 207 MBytes 1.74 Gbits/sec
[ 5] 14.00-15.00 sec 215 MBytes 1.81 Gbits/sec
[ 5] 15.00-16.00 sec 218 MBytes 1.83 Gbits/sec
[ 5] 16.00-17.00 sec 217 MBytes 1.82 Gbits/sec
[ 5] 17.00-18.00 sec 217 MBytes 1.82 Gbits/sec
[ 5] 18.00-19.00 sec 169 MBytes 1.42 Gbits/sec
[ 5] 19.00-20.00 sec 230 MBytes 1.93 Gbits/sec
[ 5] 20.00-21.00 sec 228 MBytes 1.91 Gbits/sec
[ 5] 21.00-22.00 sec 220 MBytes 1.85 Gbits/sec
[ 5] 22.00-23.00 sec 227 MBytes 1.91 Gbits/sec
[ 5] 23.00-24.00 sec 231 MBytes 1.94 Gbits/sec
[ 5] 24.00-25.00 sec 232 MBytes 1.95 Gbits/sec
[ 5] 25.00-26.00 sec 146 MBytes 1.23 Gbits/sec
[ 5] 26.00-27.00 sec 200 MBytes 1.67 Gbits/sec
[ 5] 27.00-28.00 sec 180 MBytes 1.51 Gbits/sec
[ 5] 28.00-29.00 sec 176 MBytes 1.47 Gbits/sec
[ 5] 29.00-30.00 sec 170 MBytes 1.43 Gbits/sec
[ 5] 30.00-31.00 sec 217 MBytes 1.82 Gbits/sec
[ 5] 31.00-32.00 sec 215 MBytes 1.80 Gbits/sec
[ 5] 32.00-32.54 sec 116 MBytes 1.79 Gbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-32.54 sec 0.00 Bytes 0.00 bits/sec sender
[ 5] 0.00-32.54 sec 6.12 GBytes 1.62 Gbits/sec receiver
FAQ:
Deprecated flags (currently no plans to support):
-d, --dualtest Do a bidirectional test simultaneously
-r, --tradeoff Do a bidirectional test individually
-T, --ttl time-to-live, for multicast (default 1)
-x, --reportexclude [CDMSV] exclude C(connection) D(data) M(multicast)
S(settings) V(server) reports
-y, --reportstyle C report as a Comma-Separated Values
iperf3实践的更多相关文章
- webp图片实践之路
最近,我们在项目中实践了webp图片,并且抽离出了工具模块,整合到了项目的基础模板中.传闻IOS10也将要支持webp,那么使用webp带来的性能提升将更加明显.估计在不久的将来,webp会成为标配. ...
- Hangfire项目实践分享
Hangfire项目实践分享 目录 Hangfire项目实践分享 目录 什么是Hangfire Hangfire基础 基于队列的任务处理(Fire-and-forget jobs) 延迟任务执行(De ...
- TDD在Unity3D游戏项目开发中的实践
0x00 前言 关于TDD测试驱动开发的文章已经有很多了,但是在游戏开发尤其是使用Unity3D开发游戏时,却听不到特别多关于TDD的声音.那么本文就来简单聊一聊TDD如何在U3D项目中使用以及如何使 ...
- Logstash实践: 分布式系统的日志监控
文/赵杰 2015.11.04 1. 前言 服务端日志你有多重视? 我们没有日志 有日志,但基本不去控制需要输出的内容 经常微调日志,只输出我们想看和有用的 经常监控日志,一方面帮助日志微调,一方面及 ...
- 【大型网站技术实践】初级篇:借助Nginx搭建反向代理服务器
一.反向代理:Web服务器的“经纪人” 1.1 反向代理初印象 反向代理(Reverse Proxy)方式是指以代理服务器来接受internet上的连接请求,然后将请求转发给内部网络上的服务器,并将从 ...
- Windows平台分布式架构实践 - 负载均衡
概述 最近.NET的世界开始闹腾了,微软官方终于加入到了对.NET跨平台的支持,并且在不久的将来,我们在VS里面写的代码可能就可以通过Mono直接在Linux和Mac上运行.那么大家(开发者和企业)为 ...
- Mysql事务探索及其在Django中的实践(二)
继上一篇<Mysql事务探索及其在Django中的实践(一)>交代完问题的背景和Mysql事务基础后,这一篇主要想介绍一下事务在Django中的使用以及实际应用给我们带来的效率提升. 首先 ...
- Mysql事务探索及其在Django中的实践(一)
前言 很早就有想开始写博客的想法,一方面是对自己近期所学知识的一些总结.沉淀,方便以后对过去的知识进行梳理.追溯,一方面也希望能通过博客来认识更多相同技术圈的朋友.所幸近期通过了博客园的申请,那么今天 ...
- netty5 HTTP协议栈浅析与实践
一.说在前面的话 前段时间,工作上需要做一个针对视频质量的统计分析系统,各端(PC端.移动端和 WEB端)将视频质量数据放在一个 HTTP 请求中上报到服务器,服务器对数据进行解析.分拣后从不同的 ...
随机推荐
- BEGIN_TEMPLATE_MESSAGE_MAP
最近转做服务端开发,或多或少有点坑爹的感觉.目前正在恶补Linux C/C++编程,主要还是集中在Linux系统API的学习.不过也好,以后更新的内容不仅仅只有Windows了. 今天说一点简单的东西 ...
- Hadoop学习资料
转自:http://cloud21.iteye.com/blog/607175 第一手资源 hadoop官方网站 hadoop.apache.org 最权威的官方资源之一 dev.yahoo.hado ...
- PC缺少一个或多个网络协议 qq可登录(win10)
打开适配器连接 1打开网络适配器 2卸载microsoft 3 网络客户端 4重启
- MVC 3.0 Tree
页面分左右两部分,左边是一个导航树,右边是局部页,点击树节点,异步刷新右边的内容.加颜色部分是知识点. @using VideoWeb.Models@model VideoWeb.Models.Cat ...
- 一种工业级系统交互建模工具的应用--EventStudio System Designer
一种工业级系统交互建模工具的应用 [摘要] 本文以探索如何维护大规模复杂系统交互设计模型为目的,以EventHelix公司的商业付费软件EventStudio System Designer为建模工具 ...
- [转]Neural Networks, Manifolds, and Topology
colah's blog Blog About Contact Neural Networks, Manifolds, and Topology Posted on April 6, 2014 top ...
- sscanf,sscanf_s及其相关用法
#include<stdio.h> 定义函数 int sscanf (const char *str,const char * format,........); 函数说明 sscanf ...
- sge学习 (转)
转自http://biancheng.dnbcw.info/linux/417992.html 命令: qsub - submit a batch job to Grid Engine. qsh ...
- AppStore 内购验证的方法
AppStore增加了验证内购(In App Purchasement)的方法, 就是苹果提供一个url地址, 开发测试用: https://sandbox.itunes.apple.com/veri ...
- 连HTTPS都有漏洞,这么不安全的互联网我们还要继续用吗?
转载自 http://www.huxiu.com/article/45302/1.html 10月24日和25日,虎嗅君参加了GeekPwn(极棒)安全极客嘉年华活动. 嗯...说是嘉年华,其实就 ...