Processor cores not displayed correctly

[SomniSom]

Processor Information (dmidecode):

• Socket Designation: U3E1
• Type: Central Processor
• Family: Core i9
• Manufacturer: Intel(R) Corporation
• Signature: Type 0, Family 6, Model 183, Stepping 1
• Flags:
  • FPU (Floating-point unit on-chip)
  • VME (Virtual mode extension)
  • DE (Debugging extension)
  • PSE (Page size extension)
  • TSC (Time stamp counter)
  • MSR (Model specific registers)
  • PAE (Physical address extension)
  • MCE (Machine check exception)
  • CX8 (CMPXCHG8 instruction supported)
  • APIC (On-chip APIC hardware supported)
  • SEP (Fast system call)
  • MTRR (Memory type range registers)
  • PGE (Page global enable)
  • MCA (Machine check architecture)
  • CMOV (Conditional move instruction supported)
  • PAT (Page attribute table)
  • PSE-36 (36-bit page size extension)
  • CLFSH (CLFLUSH instruction supported)
  • DS (Debug store)
  • ACPI (ACPI supported)
  • MMX (MMX technology supported)
  • FXSR (FXSAVE and FXSTOR instructions supported)
  • SSE (Streaming SIMD extensions)
  • SSE2 (Streaming SIMD extensions 2)
  • SS (Self-snoop)
  • HTT (Multi-threading)
  • TM (Thermal monitor supported)
  • PBE (Pending break enabled)
• Version: 13th Gen Intel(R) Core(TM) i9-13900HX
• Voltage: 1.4 V
• External Clock: 100 MHz
• Max Speed: 5400 MHz
• Current Speed: 4851 MHz
• Status: Populated, Enabled
• Core Count: 24
• Core Enabled: 24
• Thread Count: 32
• Characteristics:
  • 64-bit capable
  • Multi-Core
  • Hardware Thread
  • Execute Protection
  • Enhanced Virtualization
  • Power/Performance Control

cpuid:

• Name: 13th Gen Intel(R) Core(TM) i9-13900HX
• Vendor String: GenuineIntel
• Vendor ID: Intel
• PhysicalCores: 16
• Threads Per Core: 2
• Logical Cores: 32
• CPU Family 6 Model: 183 Stepping: 1
• Features: ADX,AESNI,AVX,AVX2,AVXVNNI,BHI_CTRL,BMI1,BMI2,CETIBT,CETSS,CLMUL,CMOV,CMPXCHG8,CX16,ERMS,F16C,FLUSH_L1D,FMA3,FSRM,FXSR,FXSROPT,GFNI,HRESET,HTT,HYBRID_CPU,IA32_ARCH_CAP,IA32_CORE_CAP,IBPB,IDPRED_CTRL,KEYLOCKER,LAHF,LZCNT,MD_CLEAR,MMX,MOVBE,MOVDIR64B,MOVDIRI,NX,OSXSAVE,POPCNT,PSFD,RDRAND,RDSEED,RDTSCP,RRSBA_CTRL,SERIALIZE,SHA,SPEC_CTRL_SSBD,SSE,SSE2,SSE3,SSE4,SSE42,SSSE3,STIBP,STOSB_SHORT,SYSCALL,SYSEE,VAES,VMX,VPCLMULQDQ,WAITPKG,X87,XGETBV1,XSAVE,XSAVEC,XSAVEOPT,XSAVES
• Microarchitecture level: 3
• Cacheline bytes: 64
• Frequency: 2400000000 Hz
• Boost Frequency: 5400000000 Hz

[klauspost]

Threads Per Core is not going to be accurate.

But it does seem like there is something fishy with the latest Intels:

=== RUN   TestMocks/GenuineIntel00B06A2_RaptorLakeP_04_CPUID.txt
    mockcpu_test.go:180: Opening GenuineIntel00B06A2_RaptorLakeP_04_CPUID.txt
    mockcpu_test.go:183: Name: 13th Gen Intel(R) Core(TM) i9-13900H
    mockcpu_test.go:185: Max Function:0x20
    mockcpu_test.go:187: Max Extended Function:0x80000008
    mockcpu_test.go:188: VendorString: GenuineIntel
    mockcpu_test.go:189: VendorID: Intel
    mockcpu_test.go:190: PhysicalCores: 10
    mockcpu_test.go:191: ThreadsPerCore: 2
    mockcpu_test.go:192: LogicalCores: 20
    mockcpu_test.go:193: Family 6 Model: 186 Stepping: 2
    mockcpu_test.go:194: Features: ADX,AESNI,AVX,AVX2,AVXVNNI,BHI_CTRL,BMI1,BMI2,CETIBT,CETSS,CLMUL,CMOV,CMPXCHG8,CX16,ERMS,F16C,FLUSH_L1D,FMA3,FSRM,FXSR,FXSROPT,GFNI,HRESET,HTT,HYBRID_CPU,IA32_ARCH_CAP,IA32_CORE_CAP,IBPB,IDPRED_CTRL,KEYLOCKER,LAHF,LZCNT,MD_CLEAR,MMX,MOVBE,MOVDIR64B,MOVDIRI,NX,OSXSAVE,PCONFIG,POPCNT,PSFD,RDRAND,RDSEED,RDTSCP,RRSBA_CTRL,SERIALIZE,SHA,SPEC_CTRL_SSBD,SSE,SSE2,SSE3,SSE4,SSE42,SSSE3,STIBP,STOSB_SHORT,SYSEE,TME,VAES,VMX,VPCLMULQDQ,WAITPKG,X87,XGETBV1,XSAVE,XSAVEC,XSAVEOPT,XSAVES
    mockcpu_test.go:195: Microarchitecture level: 3
    mockcpu_test.go:196: Cacheline bytes: 64
    mockcpu_test.go:197: L1 Instruction Cache: 32768 bytes
    mockcpu_test.go:198: L1 Data Cache: 49152 bytes
    mockcpu_test.go:199: L2 Cache: 1310720 bytes
    mockcpu_test.go:200: L3 Cache: 25165824 bytes
    mockcpu_test.go:201: Hz: 3000000000 Hz
    mockcpu_test.go:202: Boost: 5400000000 Hz

• Total Cores: 14
• no of Performance-cores: 6
• no of Efficient-cores: 8
• Total Threads: 20

https://www.intel.com/content/www/us/en/products/sku/232135/intel-core-i913900h-processor-24m-cache-up-to-5-40-ghz/specifications.html

Problem seem to be:

func physicalCores() int {
    v, _ := vendorID()
    switch v {
    case Intel:
        return logicalCores() / threadsPerCore()

So some work will have to be put into changing the detection of this, and maybe some additional information on slow/fast cores.