Inspecting Physical CPUs, Cores, Threads, and Their Running Processes on Linux
Key Fields in /proc/cpuinfo
physical id – unique identifier for each physical processor package (socket).
cpu cores – number of physical cores inside one package.
processor – logical CPU identifier; every SMT sibling is counted separately.
Definitions
Term
Meaning
Physical CPU
A real procesor chip that fits into a motherboard socket.
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Posted on Fri, 24 Jul 2026 16:49:52 +0000 by chalbing