Detailed thread group parameters:
1. Number of threads: number of virtual users. A virtual user occupies one process or thread. How many virtual users set up where the number of threads is set.
2. Ramp-Up Period (in seconds ) to prepare a long time: the number of virtual users to set how long it takes all started. If the number of threads is 10, when preparing length of 2, you need 2 seconds to start 10 threads, that is, five threads per start.
3 cycles: each thread transmission request times. If the number of threads 10, 100 cycles, each thread 100 requests the transmission. The total number of requests is 10 * 100 = 1000. If you check the "Always", then all threads will always send a request to opt out of running a script.
4. Delay Thread creation until needed: when you need to create a thread until the delay.
5. Scheduler: thread group start time and end time of startup (when configuring a scheduler always need to check the number of cycles)
Duration (sec): The duration of the test, the end time will cover the
start delay (seconds): Test delayed start time, start time will cover the
start-up time: test start time, start delay will cover it. When the start time has passed, just manually test the current time will be covered by it.
End time: end of the test period, the duration will cover it.
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Http request main arguments detailed:
- Web服务器
协议:向目标服务器发送HTTP请求协议,可以是HTTP或HTTPS,默认为HTTP
服务器名称或IP :HTTP请求发送的目标服务器名称或IP
端口号:目标服务器的端口号,默认值为80
2.Http请求
方法:发送HTTP请求的方法,可用方法包括GET、POST、HEAD、PUT、OPTIONS、TRACE、DELETE等。
路径:目标URL路径(URL中去掉服务器地址、端口及参数后剩余部分)
Content encoding :编码方式,默认为ISO-8859-1编码,这里配置为utf-8 - 同请求一起发送参数
在请求中发送的URL参数,用户可以将URL中所有参数设置在本表中,表中每行为一个参数(对应URL中的 name=value),注意参数传入中文时需要勾选“编码”
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聚合报告参数详解:
1. Label:每个 JMeter 的 element(例如 HTTP Request)都有一个 Name 属性,这里显示的就是 Name 属性的值
2. #Samples:请求数——表示这次测试中一共发出了多少个请求,如果模拟10个用户,每个用户迭代10次,那么这里显示100
3. Average:平均响应时间——默认情况下是单个 Request 的平均响应时间,当使用了 Transaction Controller 时,以Transaction 为单位显示平均响应时间
4. Median:中位数,也就是 50% 用户的响应时间
5. 90% Line:90% 用户的响应时间
6. Min:最小响应时间
7. Max:最大响应时间
8. Error%:错误率——错误请求数/请求总数
9. Throughput:吞吐量——默认情况下表示每秒完成的请求数(Request per Second),当使用了 Transaction Controller 时,也可以表示类似 LoadRunner 的 Transaction per Second 数
10. KB/Sec:每秒从服务器端接收到的数据量,相当于LoadRunner中的Throughput/Sec
一般而言,性能测试中我们需要重点关注的数据有: #Samples 请求数,Average 平均响应时间,Min 最小响应时间,Max 最大响应时间,Error% 错误率及Throughput 吞吐量。