Multiple user login to iterate through a sequence of threads in JMeter

Question

I have to simulate multiple user logging in and going through a sequence of web services in JMeter. The web services are-

1.login
2.startjob
3.endjob
4.logout

I have 10 users and all of them will simultaneously login and run through the steps 1-4.

The steps are-

1. User will login using "login" service. They will get a session token (ST) in the response.
2. Using the ST from above step the user will start the job using "startjob" service
3. After the job is finished, "endjob" service is used.
4. Finally user is logged out using "logout" service.

So far I have been able to do the above steps properly for one user.

I have created a CSV file with 10 usernames and passwords and am able to make only the "login" service iterate through all users using CSV Data Set Config.

How do I make each individual user go through steps 1-4?

Answer 1

In JMeter, each individual Thread or User will execute every sample within it in upside-down order. So for a single user, when we run the test, the result will appear in that order. But Ramp up time is related to Thread creation:

How long JMeter should take to get all the threads started is the Ramp up time.

Within this time, all the users will be initiated and all those Threads will execute the samples underlying it in the same fashion as it does for a single user.So in you case, all the 10 thread will go through steps 1-4, but the threads will initiate within your ramp up time.

If you observe the output in View Results in Table listener and trace the Start Time of the samples for a corresponding Thread, you will see that those samples are executed through the steps of 1-4.

For an example, I have 4 samples under my Thread Group and I have defined Threads or Users : 3 and Ramp up : 5. All those three Threads executed the samples Through 1 to 4.

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