topology

A no-std crate to parse the complete hardware topology and other information of an x86-64 machine.

lib.rs:

Interface to query information about the underlying hardware.

Our naming scheme follows the Intel x86/ACPI convention which has a thread/core/package/NUMA node hierarchy:

• thread: Hardware scheduling unit (has an APIC, is an app or core bsp core)
• core: one or more threads (usually 2)
• package: one or more cores (usually a socket with a shared LLC)
• affinity region: a NUMA node (consists of a bunch of threads/core/packages and memory regions)

Intel Topology is a pretty complicated subject (unfortunately), relevant documentation is here:

• https://software.intel.com/en-us/articles/intel-64-architecture-processor-topology-enumeration/
• https://acpica.org/documentation