Back-End Bound

Metric Description

Identify slots where no uOps are delivered due to a lack of required resources for accepting more uOps in the back-end of the pipeline. Back-end metrics describe a portion of the pipeline where the out-of-order scheduler dispatches ready uOps into their respective execution units, and, once completed, these uOps get retired according to program order. Stalls due to data-cache misses or stalls due to the overloaded divider unit are examples of back-end bound issues.