JMETER -Understanding Thread Group

In this part of step by step JMETER tutorial we are going to learn about JMETER element “THREAD GROUP”

What is Thread Group in JMETER:-

Thread group is a place where we actually put number of users (Threads). It is starting point of JMETER test plan. This is first element of JMETER test plan. Each thread represent one user.  Using this Thread Group you can set number of users. Using thread group is basic step to start with JMETER load testing.

Now let’s understand How Element Thread group works .

If you put load of 50 users on your server by configuring 50 threads . Then all 50 user will simulate and will put load on server.

There are 3 controls we need to set for JMETER

• Set the number of threads
• Set the ramp-up period
• Set the number of times to execute the test

• How to set the number of threads

Here we need to set number of threads . If you put load of 50 users on your server by configuring 50 threads . Then all 50 user will simulate and will put load on server.

• How to set the ramp-up period

The ramp-up period expresses JMeter how long to take to "ramp-up" to the full number of threads selected. 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

• How to set the number of times to execute the test (LOOP count):- how many times to run thread group  in loop. If you set value 2 then thread group will run twice.