---
title: "setUp Thread Group"
description: "Configure the JMeter setUp Thread Group miscellaneous features: properties, defaults, and practical usage notes for building reliable load tests."
url: https://docs.jmeter.ai/components/setup-thread-group/
lastUpdated: 2026-10-01
source: docs.jmeter.ai
---

# setUp Thread Group

*Part of the **Miscellaneous Features** category. Also documented in context in the [full Component Reference](/user-manual/component-reference/#setup-thread-group).*

![setUp Thread Group](/images/screenshots/setup_thread_group.png)

A special type of ThreadGroup that can be utilized to perform Pre-Test Actions.  The behavior of these threads
is exactly like a normal [Thread Group](/components/thread-group/) element.  The difference is that these type of threads
execute before the test proceeds to the executing of regular Thread Groups.

## Related

- [Plugins Essentials](/topics/plugins-essentials/)
- [Full Component Reference](/user-manual/component-reference/)
- [Functions and Variables](/user-manual/functions/)