LLC Hit Rate

Metric Description

The LLC (last-level cache) is the last, and longest-latency, level in the memory hierarchy before DRAM or MCDRAM. While LLC hits are serviced much more quickly than hits in DRAM, they can still incur a significant performance penalty. This metrics provides the ratio of demand load requests that hit in LLC to the total number of demand load requests serviced by LLC. This metric does not include instruction fetches.