|Non-Confidential||PDF version||ARM 100052_0001_00_en|
|Home > Performance Optimization and Monitoring > Ring performance events|
You can use the link utilization event between two XPs to detect hot links on interconnects by measuring the token valid counts at each XP. This event helps to detect incorrect routing algorithms or device placement.
|PMU_XP_VALID_FLIT||Signal event whenever token valid is cleared on the bus, indicating that a valid packet is passing through an XP on the specified bus.|