Set the Loop Count – the number of times to execute the test for each thread group.NOTE: If Ramp-up = 0, so the test will be held until all threads were created, then start them all at the same time. For example, the test started at 01:48:02, please see the illustration above:Īnother example: If there are 30 threads and a ramp-up period of 120 seconds, then each successive thread will be delayed by 4 seconds.Ramp-up needs to be long enough to avoid too large a workload at the start of a test, and short enough that the last threads start running before the first ones finish (unless one wants that to happen).You Should start with Ramp-up = number of threads and adjust up or down as needed. Each thread will start 10 ( 100/10) seconds after the previous thread was begun.
#APACHE JMETER THREAD PROPERTIES FULL#
Set the Ramp-Up Period: The ramp-up period tells JMeter how long to take to “ramp-up” to the full number of threads chosen.If 10 threads are used, and the ramp-up period is 100 seconds, then JMeter will take 100 seconds to get all 10 threads up and running.Set the Number of Threads (Users): Number of users to simulate.The controls for a thread group allow you to: The threads properties control the number of threads JMeter will use to execute your test. Any current samplers are interrupted if possible. Stop Test Now – the entire test is stopped immediately.It means the pending samplers are still run until done. Stop Test – the entire test is stopped at the end of any current samples.Start Next Loop – ignore the error, start next loop and continue with the test.Continue (default)- ignore the error and continue with the test and run next sampler.It determines what happens if a sampler error occurs, either because the sample itself failed or an assertion failed. This is the very first options of Thread Group element, but not many people pay attention to it. Number of Threads (Users) = 2 and Loop Count = 3 Click here to view original image 1. Action to be taken after a Sampler error In other words, the loops run sequentially inside the thread group.īelow is another example to show the test run of Thread Group which has 3 requests Request A, Request B and Request C. The first loop is done, then the second loop will run, and after the second loop ended, the third loop will run, and so on. Multiple threads are used to simulate concurrent connections to your server application.Įach Thread Group has their own loop count. They run in parallel after all threads are started.
![apache jmeter thread properties apache jmeter thread properties](https://www.linuxbabe.com/wp-content/uploads/2021/07/apache-jmeter-add-thread-group.png)
Remember, each thread will execute the test plan in its entirety and completely independently of other test threads. The length of the arrow represents the response time of the request. Assume in this test, two threads are run at the same time.
![apache jmeter thread properties apache jmeter thread properties](https://loadium.com/wp-content/uploads/2018/11/blog-Whats-New-in-JMeter-5--800x392.png)
The illustration above shows the test run of Number of Threads (Users) = 2 and Loop Count = 3. I wanna make sure that you all have a good overview of these definitions. Threads and Loop Countįirst, let talk about the Threads and Loop Count. Therefore, this post will help you to understand all feature of Thread Group deeply and clearly. But the other configurations are also useful and they might help you in some case. Actually, it’s enough for you to run the test. Usually, you just use some configuration of Thread Group, such as Number of Threads (Users) or Loop Count, sometimes you touched Ramp-Up Period (in seconds).
![apache jmeter thread properties apache jmeter thread properties](https://i.stack.imgur.com/5Avcj.png)
So the Thread Group element is very important. As the name implies, the thread group element controls the number of threads JMeter will use to execute your test.
![apache jmeter thread properties apache jmeter thread properties](https://loadfocus.com/blog/wp-content/uploads/apache-jmeter-adding-thread-group.png)
Listeners, may be placed directly under the test plan, in which case they will apply to all the thread groups. All Controllers and Samplers must be under a thread group. 正因此特性,我们可以很容易的通过SPI机制为我们的程序提供拓展功能.From today's articleJava SPI到Dubbo的SPI,让我们看看Dubbo做了扩展.Thread Group elements are the beginning points of any test plan.