Intel® VTune™ Amplifier XE and Intel® VTune™ Amplifier for Systems Help
This metric represents cycles fraction with demand load accesses that hit the L3 cache under loaded scenarios (possibly L3 Bandwidth limited). Avoiding private cache misses (i.e. L2 misses/L3 hits) will improve the latency, reduce contention with sibling physical cores and increase performance. Note the value of this node may overlap with its siblings.