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JMeter Ramp Up Period

Introduction to JMeter Ramp Up Period

We know that JMeter is an open source free tool used to conduct load and performance testing; while creating a test plan, we need to set different parameters, in which the ramp-up period is one of the parameters we need to set. The ramp-up period is nothing but the difference between the threads. For example, suppose we have ten threads, then we can consider 100 seconds as the ramp-up period, so JMeter utilizes the 100 seconds for ten threads execution.

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JMeter Ramp Up Period

Key Takeaways

  • The increased time frame lets JMeter know what amount of time to ramp up the period to the full number of strings picked.
  • The ramp-up period is nothing but the user hit time on the server.
  • The ramp-up time shows the ideal opportunity for all strings (virtual clients) to become dynamic, so you’re most likely searching for the Duration setting.

What is the JMeter Ramp-Up Period?

One of the essential parts of execution testing is the capacity to impersonate a real burden on your application. However, deciding the number of simultaneous clients for the objective burden isn’t sufficient. Tried applications could bomb underway under a similar objective burden utilized during the test stage. Or on the other hand, an application could bomb under the test load when the issue is a bottleneck in your framework. These things happen because, notwithstanding the objective burden, designers and execution analyzers ought to likewise think often about how the heap is conveyed during test execution.

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The JMeter increase period assists groups with mimicking various burden situations for an application. There is no decent rule for increasing limits. It would help if you concluded this with an experimentation strategy given how much burden you need to augment constantly and the heap the framework on which you are running Jmeter can deal with. When you run Jmeter, it will possess nearby framework memory, CPU, I/O, and the Heap Size of Jmeter. If you have a huge number of strings and a low increase, you could obtain unreasonable outcomes, or it could likewise hang up the framework. Regardless of whether the increase is set extremely high, the test will take that long to get to the full number of strings being executed, and again the outcomes wouldn’t be as exact as you would like. For example, we can consider 100 threads with a 10-second ramp-up period; then, it executes the ten threads per second.

How to Use JMeter Ramp Up Period?

Let’s see how we can use the ramp-up period in JMeter as follows:

First, we need to create the thread group inside the Test plan, so first, we need to right-click on the Test Plan, then move the mouse to Add-> Threads and select the Thread Groups as shown in the below screenshot.

thread group inside the Test plan

In the above screenshot, we can see the different options, so as per our requirement, we can change; here, we set the number of threads as 100, and the ramp-up period is 1 second, as shown in the screenshot.

number of threads as 100, and the ramp-up period is 1 second

In the next step, we need to add the Sampler to test the web application with the GET method, so right-click on Thread Group, over the mouse on ADD, then Sampler, and select HTTP request. In this example, we set HTTP requests as shown in the below screenshot.

set HTTP requests
Now we need to add the Listener to see the result, so we can use any Listener that we want; here, we added a graph listener, as shown below screenshot.

added a graph listener

Now execute the Test Plan and see the result in Graph Result Listener as shown below screenshot.

execute the Test Plan and see the result in Graph Result Listener

Remember that the ramp-up period ought not to be 0, assuming you have an enormous number of target strings. Increase 0 implies that exhibition content will add all strings immediately at the start of the test execution. Consequently, it will burden your application severely without a moment’s delay.

Creating JMeter Ramp Up Period

Let’s see how we can create a ramp-up period in JMeter as follows:

In the above, we saw how we could add the ramp-up time, so first, we need to create a Thread Group; inside the Thread Group, we have different parameters; here, we can see the ramp-up period in the second, as shown in the below screenshot.

create a Thread Group

In the above screenshot, we can see a ramp-up period as per our requirement; suppose we set the ramp-up period as 120 seconds for 100 threads, so it holds the whole script for 3 minutes, but it depends on the scenario it is going to execute.

Let’s consider the above example; here, we just added one more Listener, as shown in the below screenshot.

we just added one more Listener

So in this way, we can create the ramp-up period as per our requirement as well as we are also able to create a stepping load ramp-up by using the same process.

JMeter Ramp Up Period FAQ

Given below is the JMeter ramp-up period FAQ:

Q1. What is meant by the JMeter ramp-up period?

Answer:

Ramp up period is nothing but the duration in minutes between the number of threads.

Q2. What is the difference between ramp up and ramp-down time?

Answer:

The client increase concludes the rate at which virtual clients add to the heap test through slope down and educates LoadRunner at which rate virtual clients exit from the heap test.

Q3. How can we calculate the ramp-up period?

Answer:

First, we need to guess the average hit rate and then calculate the initial ramp-up time divided by the number of threads with the guessed hit rate.

Conclusion

In this article, we are trying to explore the JMeter ramp-up period. In this article, we saw the different types of JMeter ramp-up periods and the uses and features of this JMeter ramp-up period. Another point from the article is how we can perform and set up the ramp-up period in JMeter.

Recommended Articles

This is a guide to JMeter Ramp Up Period. Here we discuss the introduction and how to use the JMeter ramp-up period with FAQ. You may also have a look at the following articles to learn more –

  1. JMeter Testing
  2. JMeter load testing
  3. JMeter User-Defined Variables
  4. JMeter BeanShell
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