A thread group represents a set of threads and provide a mechanism for collecting multiple threads and executing them all at once. When using a standard Thread Group, Blazemeter overrides the Thread Group configuration of Threads, Iterations, Ramp-up and Duration. That is not the case when using an Ultimate/Stepping/Concurrency Thread Group. For your scenario to work with the Ultimate/Stepping/Concurrency Thread Group, configure the Blazemeter test as follows.
Configure an Ultimate Thread Group Scenario
Follow these steps:
- Upload your JMeter script to the test.
- In test Configuration tab, Load Configuration section, toggle off:
- Total Users
- Duration/Iterations
- Ramp up Time
- LImit RPS
- Ramp up Steps
Configure Engines in Multiple Engines Scenario
If you run a multiple engines test, you must adjust the Threads values in your Ultimate/Stepping/Concurrency Thread Group.
Example:
You are running a multiple engines test with 2000 Concurrent Users using 5 load engines. You need to adjust the Threads values to 1/5 of their current values. Set the Ultimate/Stepping/Concurrency Thread Group to load up to 400 threads. Otherwise, each engine runs 2000 threads. It would result in the crash of the engines or massive overload on your app server side.
Follow these steps:
Click the current configured number of engines.
A pop-up window shows.
- Configure the desired number of engines.
Click anywhere outside of the pop-up window.
The number of engines configured is updated.
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