Critical Section Controller

Part of the Logic Controllers category. Also documented in context in the full Component Reference.

The Critical Section Controller ensures that its children elements (samplers/controllers, etc.) will be executed by only one thread as a named lock will be taken before executing children of controller.

The figure below shows an example of using Critical Section Controller, in the figure below 2 Critical Section Controllers ensure that:

• DS2-\${__threadNum} is executed only by one thread at a time
• DS4-\${__threadNum} is executed only by one thread at a time

Test Plan using Critical Section Controller

Name	Required	Description
Lock Name	Yes	Lock that will be taken by controller, ensure you use different lock names for unrelated sections

Note

Critical Section Controller takes locks only within one JVM, so if using Distributed testing ensure your use case does not rely on all threads of all JVMs blocking.

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Related

• Logic Controllers & Flow Control
• Full Component Reference
• Functions and Variables