Simple definition
L2 cache is a processor cache larger and typically slower than L1, reducing accesses to main memory.
Purpose and use
L2 is an intermediate cache level in many processor architectures.
How does it work?
It can supply capacity beyond L1, with private or shared organization depending on the processor.
Example and verification
Relate L2 measurements to the relevant core or core group.
Points to watch
Do not assume identical L2 sharing across processors or add capacities without specifying topology.
In short
Interpret L2’s role alongside its actual organization.