Some time ago described performance test type
- Configuring load
- Big Bang: load while producing
- Ramp up: start when a certain load, and then from time to time to add some load until the target load, which is typical mode
- Ramp-up (with step): generating a load segment. For example, a total of 1000 users load, but we need to observe the system at 250, 500, 700 performance under load, after reaching these loads need to run some time to add a new load
- Ramp up (with step), ramp down (with step): Similarly with the above, only the last load back to 0
- Delayed start: delayed start
- Testing Process
- Tested for capacity for each use case: load policy generally ramp-up or ramp-up with step
- Example of performance problems with the isolation test
- Tested for capacity with Example Group
- Isolation of test cases Group: Load Policy is generally ramp-up or ramp-up with step
- Pressure test with Example Group
- Stability testing of Example Group use
For the embodiment of the pressure load the configuration settings need to install a plug-in to use Stepping Thread Group
Download link: https: //jmeter-plugins.org/downloads/old/
After the download, unzip the bag on JMeterPlugins-Standard.jar under jmeter-3.0 \ lib \ ext path jmeter installation directory, you can restart jemter. This article has been before installation.
功能参数设置
This group will start 100 threads：设置线程组启动的线程总数为100个；
First,wait for N seconds：启动第一个线程之前，需要等待N秒；
Then start N threads：设置最开始时启动N个线程；
Next,add 10 threads every 30 seconds,using ramp-up 5 seconds：接下来，每30秒添加10个线程，在5秒的时间段； Then hold load for 60 seconds：启动的线程总数达到最大值之后，再持续运行60秒； Finally,stop 5 threads every 1 seconds：最后，每1秒停止5个线程；
例如：总共启100个线程，先启动10个线程，压测60s，然后再1秒启动10个（即20个） 线程持续压测60s......30个线程...40.....50....，直到100线程全部启动完毕，持续跑300s。
这边压测了50个并发数 持续压测10min
QPS = samples/压测时间(s) ——————————> 220976/600s = 368.29
QPS = 并发数（即50）/rt （s） ——————————> 50/0.15 = 333.333333
这2者相差不大 即是指标要求标准
如下两图 tps可以看到达到480+
看监控的edas数据查看qps的数据 与算出的数据相差不大，达到了480+
