> OctoPerf load testing - Response Assertion documentation page. Response Assertions validate that server HTTP responses satisfy conditions during load test execution.

Source: https://api.octoperf.com/doc/design/edit-virtual-user/action-types/post-processors/debug-action/

# Debug Action

![Debug action](https://api.octoperf.com/doc/design/edit-virtual-user/action-types/post-processors/img/debug.png "Debug action")

The debug action can display:

* [Existing variables](https://api.octoperf.com/doc/design/edit-virtual-user/configuration/variables/),
* [User defined properties](https://api.octoperf.com/doc/analysis/edit-bench-report/runtime-properties/),
* [System properties](https://jmeter.apache.org/usermanual/get-started.html#configuring_jmeter).

## Debug Result

Start a [Virtual User validation](https://api.octoperf.com/doc/design/edit-virtual-user/validation/) and use the debug panel to display this information.

![Debug result](https://api.octoperf.com/doc/design/edit-virtual-user/action-types/post-processors/img/debug-result.png "Debug result")

!!! note
    To avoid the overhead, Debug actions will be automatically removed when you launch a real load test.