In both thread groups, set the Number of Threads. This is the number concurrent users you wish to simulate. In both thread groups, set the Loop Count. This number will determine how many times each thread is run, and therefore controls the length of the test.
How do you do a concurrent test?
Concurrency Testing Process: Analyzing the plan and defining scope. Creating a High level and low-level scenarios for concurrent testing. Creating the environment for testing. Now, testers two or more testers can begin the testing by performing the same task at the same timings.May 3, 2018
How does JMeter simulate multiple users?
So JMeter simulates multiple users by making copies of the samplers and running them in a separate thread. JMeter HTTP request sampler makes all the received data for further analysis. JMeter use the tree view listener for actually visualizing the received response.
How many threads JMeter can handle?
JMeter allows you to run multiple processes in the same box, and it's usually pretty reliable generating up to 200 threads per JMeter instance. If you need more than that, I'd recommend using multiple JMeter instances. A modern machine with some tweaking can easily generate 500 to 1000 threads.Aug 24, 2010
What are the limitations of JMeter?
- Automation is difficult with JMeter.
- JMeter output reports are difficult to understand without training.
- It doesn't support JavaScript and AJAX requests.
- Complex applications that use dynamic content or use JS to alter requests can be difficult to test using JMeter.
How does JMeter calculate concurrent users?
How to Calculate Target Concurrent Users. A common method is to divide the number of unique users by the average visit duration for a given period. For example, 12,000 unique visitors per hour / ( 60 minutes / 15 minutes per visit ) would equal 3,000 concurrent users.Nov 8, 2017
How do I run multiple users in JMeter?
- Create a new CSV file using a text editor Ex: CSVSample_user.csv username1, password1 username2, password2.
- In jmeter, create a CSV Data Set Config element Thread Group>add>Config Element>CSV Data Set Config => Assign variable names (see image)
How do I send multiple requests at once in JMeter?
- Configure Thread Group to have not less than 10 000 threads (virtual users)
- Add Synchronizing Timer as a child of the request which adds the device to the database and set Number of Simultaneous Users to Group by to 10000.
What is virtual user in load testing?
A VUH is a virtual user hour, and it's what we take into consideration when charging you for usage. A virtual user is an instance of a load testing script that is meant to simulate a real-world visitor on your web app. Load testing tools can differ in how they refer to a user. ... These are all virtual users in Flood.
How are virtual users calculated in performance testing?
Number of users per hour = 10. Number of requests per user = 10 (number of web pages he accesses) Length of user scenario = 10 min * 60 = 600 sec.
How do you add or remove virtual users while a test is running?
Nouredine A. When your test is running you can add or remove virtual users from your original load in the Runtime section under "Runtime Users" tab.