1. Download JMeter
http://jmeter.apache.org/download_jmeter.cgi
2. Download the plugin
https://jmeter-plugins.org/downloads/all/
Download plugins-manager.jar and put it into lib/ext directory, then restart JMeter.
Just put this file in the apache-jmeter/lib/ext directory
3. JMeter3 add UDP plugin
Start JMeter, options - plugins-manager - Available plugins - UDP Protocol Support
4. JMeter2 adds UDP plugin
Note that if it is JDK 6, you can only use Jmeter2, and download the following three packages
JMeterPlugins-ExtrasLibs-1.1.3.zip,
JMeterPlugins-Extras-1.1.3.zip,
JMeterPlugins-Standard-1.1.3.zip
.Overwrite the lib folder in the above three compressed packages to the lib folder in the jmeter directory
5. Content in the Data Encode/Decode class in jp@gc-UDP Request
You can choose the following three
| Full Class Name | Comments | |
| kg.apc.jmeter.samplers.HexStringUDPDecoder | This is most useful implementation, converts data from/to HEX-encoded sequences. For example, 6a6d6574657220706c7567696e73 corresponds to jmeter plugins. | |
| kg.apc.jmeter.samplers.DNSJavaDecoder | This implementation requires Extras With Libs Set to be installed. Request data must contain three fields, separated with spaces: name, type, class. Example: www.com. A IN. Response data converted to text using DNSJava. Request flags can be set using +/- integer value on new line, eg 7 sets reqursion desired flag. | |
| kg.apc.jmeter.samplers.UDPSampler | This implementation used as default when no valid class name specified in GUI. It makes no conversion on data. |
I use kg.apc.jmeter.samplers.UDPSampler
6. The result is garbled
选择处理器按右键，选添加-后置处理器-BeanShell PostProcessor，script中填入
prev.setDataEncoding("UTF-8");
7.非GUI模式压测
将压测用例保存到bin目录下 *.jmx文件，./jmeter.sh -n -t mytest.jmx -l mytest.jtl
8.参看*.jtl结果
随便找个地方新建聚合报告，选择文件处选择目标JTL文件
9.建议
第一次压测的时候可以考虑添加断言，1个线程跑几次的方式测试返回结果是否正确，因为通过添加“观察结果树”选择*.jtl文件，结果也是空的。不能排除有返回但结果不是预期的情况。
压测与内存和CPU均有关系，压测时需要注意线程数，有文献指出服务器端线程数应为CPU核数+1。压测端可以在线程组中设置Ramp-Up Period(in seconds) 全部线程启动完成时间和调度器设置中的持续时间，将两个时间拉长，基本可以从输出中观察到线程与tps的关系。