转： Tsung：开源多协议分布式负载&压力测试工具

Main features

High Performance: the load can be distributed on a cluster of client machines
Multi-protocols using a plugin system: HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP , XMPP/Jabber, BOSH, MQTT and AMQP are currently supported. SSL is also supported.
Several IP addresses can be used on a single machine using the underlying OS IP Aliasing
OS monitoring (CPU, memory and network traffic) using SNMP, Munin or Erlang agents on remote servers.
XML configuration system; several sessions can be used to simulate different type of users. Dynamic sessions can be easily described in XML (this can be used to retrieve at runtime an ID from the server output and use it later in the session).
In order to generate a realistic traffic, user think-times and the arrival rate can be randomize using a probability distribution
HTML reports can be generated during the load to view response times measurement, server CPU, etc.

Tsung is developed in Erlang，运行Tsung，需要相关erlang依赖包支持。

简介

Tsung 是一个压力测试工具，可以测试包括HTTP, WebDAV, PostgreSQL, MySQL, LDAP, and XMPP/Jabber等服务器。针对 HTTP 测试，Tsung 支持
HTTP 1.0/1.1 ，包含一个代理模式的会话记录、支持 GET、POST 和 PUT 以及 DELETE 方法，支持 Cookie 和基本的WWW 认证，同时还支持 SSL。

tsung的工作原理
（1） Tsung的每一个虚拟用户就是一个erlang的轻量进程。这点和loadrunner有很大的区别。
（2）虚拟用户完成session后就消失。
（3）大量的虚拟用户（erlang轻量进程）建立在erlangVM上。
（4）一台测试机可以启多个erlangVM，目前按照1个cpu启动1个erlangVM。

一、安装前检查环境

1、查看环境：

[root@localhost bin]#  lsb_release -a
LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID:    CentOS
Description:    CentOS release 6.4 (Final)
Release:    6.4
Codename:    Final

2、确保安装了以下工具：

yum install gcc -y  
yum install perl -y  
yum install unixODBC  
yum install unixODBC-devel

二、安装

1、下载并安装erlang

[root@localhost ~]#cd /usr/local
[root@localhost local]#mdir -p erlang

[root@localhost local]# wget http://www.erlang.org/download/otp_src_R14B04.tar.gz 
[root@localhost local]# tar -zxvf otp_src_R14B04.tar.gz  
[root@localhost local]# cd otp_src_R14B04  
[root@localhost otp_src_R14B04]# ./configure --prefix=/usr/local/erlang  
[root@localhost otp_src_R14B04]# make  
[root@localhost otp_src_R14B04]# make install

注意：如果出现 "configure: error: No curses library functions found "错误，尝试安装：

[root@localhost otp_src_R14B04]#yum install -y ncurses-devel

2、下载并安装Tsung

[root@localhost ~]#cd /usr/local
[root@localhost local]#mkdir -p tsung

[root@localhost local]# wget http://tsung.erlang-projects.org/dist/tsung-1.4.2.tar.gz  
[root@localhost local]# tar -zxvf tsung-1.4.2.tar.gz  
[root@localhost local]# cd tsung-1.4.2  
[root@localhost tsung-1.4.2]# ./configure --prefix=/usr/local/tsung --with-erlang=/usr/local/erlang  
[root@localhost tsung-1.4.2]# make  
[root@localhost tsung-1.4.2]# make install

3、下载并安装perl Template,用于生成报告模版

[root@localhost ~]#cd /usr/local

[root@localhost local]# wget http://cpan.org/modules/by-module/Template/Template-Toolkit-2.24.tar.gz  
[root@localhost local]# tar -zxvf Template-Toolkit-2.24.tar.gz  
[root@localhost local]# cd Template-Toolkit-2.24  
[root@localhost Template-Toolkit-2.24]# perl Makefile.PL  
[root@localhost Template-Toolkit-2.24]# make  
[root@localhost Template-Toolkit-2.24]# make test  
[root@localhost Template-Toolkit-2.24]# make install

注意：如果出现以下提示：

[root@localhost Template-Toolkit-2.24]# perl Makefile.PL
Can't locate ExtUtils/MakeMaker.pm in @INC (@INC contains: ./lib /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at Makefile.PL line 11.
BEGIN failed--compilation aborted at Makefile.PL line 11.

解决办法：

yum install perl-ExtUtils-CBuilder perl-ExtUtils-MakeMaker

4、下载并安装gnuplot,用于聊天生成

[root@localhost local]#yum install -y gnuplot gd libpng zlib

三、检查是否安装成功

[root@localhost local]# perl -v      命令查看显示perl 当前版本信息。
[root@localhostlocal]# gnuplot       命令查看gnuplot 的安装版本
[root@localhost local]# erl          命令查看erlang的安装版本
Erlang R14B04 (erts-5.8.5) [source] [64-bit] [rq:1] [async-threads:0] [hipe] [kernel-poll:false]
Eshell V5.8.5 (abort with ^G)
[root@localhost local]# tsung -v 命令查看tsung 的安装版本 
Tsung version 1.4.2

四、安装后设置环境变量

安装成后添加erlang、tsung环境变量

[root@localhost local]# vim /etc/profile   
export PATH=$PATH:$JAVA_HOME/bin:/usr/local/erlang/bin:/usr/local/tsung/bin:/usr/local/nginx/sbin:$PATH(修改自己实际变量)  
:wq保存,退出  
[root@localhost local]# source /etc/profile   
不报错则成功  
[root@localhost local]# tsung -v   
Tsung version 1.4.2
[root@localhost local]# erl -v  
Erlang R14B04 (erts-5.8.5) [source] [64-bit] [rq:1] [async-threads:0] [hipe] [kernel-poll:false]
Eshell V5.8.5 (abort with ^G)
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五、使用并生成报表

1、在root文件夹下新建.tsung目录，用于存放log和xml配置,测试配置文件可参考/usr/local/tsung/share/doc/tsung/examples/目录下配置

[root@localhost local]#mkdir ~/.tsung
[root@localhost local]#cp /usr/local/tsung/share/doc/tsung/examples/http_simple.xml ~/.tsung/tsung.xml

2、运行,默认执行脚本~/.tsung/tsung.xml配置

[root@localhost local]# tsung start
Starting Tsung
"Log directory is: /root/.tsung/log/20150311-0536"

3、进入Log目录下可以看到生成的报表信息

[root@localhost 20150311-0536]# cd /root/.tsung/log/20150311-0536
[root@localhost 20150311-0536]# ls -a
.  ..  match.log  tsung_controller@localhost.log  tsung.log  tsung.xml

4、进入需要生成图形报表的Log目录，如/root/.tsung/log/20150311-0536

[root@localhost 20150311-0536]# /usr/local/tsung/lib/tsung/bin/tsung_stats.pl 
creating subdirectory data 
creating subdirectory gnuplot_scripts 
creating subdirectory images 
No data for Session
No data for Perfs
No data for Transactions
No data for Match
No data for Event
No data for Async
No data for Size
size_rcv is equal to 0 !
size_sent is equal to 0 !
[root@localhost 20150311-0536]# ls
data  gnuplot.log  gnuplot_scripts  graph.html  images  match.log  report.html  tsung_controller@localhost.log  tsung.log  tsung.xml

5、将report.html拖到windows系统中，直接打开即可查看。

目前Tsung工具的最新版本为1.6.0，需要注意的是Tsung1.5.1版本及以上才支持MQTT,并且只有Tsung1.6.0开始，才支持MQTT的username和password的认证。

Tsung测试工具的基本测试命令为 Tsung -f ~/.tsung/mqtt.xml -l <日志保存路径> start

mqtt.xml具体如下（在/usr/share/doc/tsung/examples路径下可查找到）：

<?xml version="1.0"?>

<!DOCTYPE tsung SYSTEM "/usr/share/tsung/tsung-1.0.dtd">

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