Determine the Processor Topology - UG1523

Use the following command to view the topology of your processor:

$ lstopo-no-graphics --no-legend --no-io --of txt

You can then determine which CPU cores share an L3 cache. For example:

In the above example, the even numbered CPU cores share an L3 cache, and the odd numbered CPU cores share another L3 cache.

Alternatively, consult the documentation for your server and for its processor.