Editor.Performance.Debug.StallAndReport
CmdUnreal Engine Cmd console variable.
EditorPerformanceDebugStallAndReport
Description
Runs a busy loop on the calling thread. Can pass a number of seconds to stall for in parameter (defaults to 2 seconds). Will report stall to CRC
Usage
Editor.Performance.Debug.StallAndReportExecute via the console (~). This is a command, not a variable.

