Intel® VTune™ Amplifier XE and Intel® VTune™ Amplifier for Systems Help
This metric represents how much Core non-memory issues were of a bottleneck. Shortage in hardware compute resources, or dependencies software's instructions are both categorized under Core Bound. Hence it may indicate the machine ran out of an OOO resources, certain execution units are overloaded or dependencies in program's data- or instruction- flow are limiting the performance (e.g. FP-chained long-latency arithmetic operations).