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CPU number not equal to threads per core X cores per socket X sockets

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As far as I understand, the number of CPUs in my computer should be given by CPU = Thread(s) per core x Core(s) per socket x Socket(s) Here are the first few lines of the lscpu output: $ lscpu | head -n18 Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Address sizes: 46 bits physical, 48 bits virtual Byte Order: Little Endian CPU(s): 22 On-line CPU(s) list: 0-21 Vendor ID: GenuineIntel Model name: Intel(R) Core(TM) Ultra 7 155H CPU family: 6 Model: 170 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 1 Stepping: 4 CPU(s) scaling MHz: 14% CPU max MHz: 4800.0000 CPU min MHz: 400.0000 BogoMIPS: 5990.40 What’s going on? 2 × 16 = 32, not 22. Even running nproc --all shows 22. Am I missing something?
Asked by Miguel (183 rep)
Apr 1, 2025, 11:27 AM
Last activity: Apr 16, 2025, 07:56 AM