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lscpu 命令显示的 CPU 数量比型号指示的多

tag-icon • tag-icon xubuntu laptop intel cpu 21.10
lscpu 命令显示的 CPU 数量比型号指示的多

根据其列表页面，我的笔记本电脑应该有 Intel Core i7-4800MQ，但lscpu显示它有一个 i7-4610M CPU。显然，我拿到了错误的产品，但我很困惑，因为它还显示我的 4610M 有四个 CPU，而不是英特尔的 CPU 信息页面. 4800MQ 有四个 CPU。

我正在运行 Xubuntu 21.10。

出现这种差异是否有明显的原因，或者可能只是因为我应该更谨慎地选择供应商？

user@Cola-Cola:~$ lscpu
Architecture:                    x86_64
CPU op-mode(s):                  32-bit, 64-bit
Byte Order:                      Little Endian
Address sizes:                   39 bits physical, 48 bits virtual
CPU(s):                          4
On-line CPU(s) list:             0-3
Thread(s) per core:              2
Core(s) per socket:              2
Socket(s):                       1
NUMA node(s):                    1
Vendor ID:                       GenuineIntel
CPU family:                      6
Model:                           60
Model name:                      Intel(R) Core(TM) i7-4610M CPU @ 3.00GHz
Stepping:                        3
CPU MHz:                         2394.652
CPU max MHz:                     3700.0000
CPU min MHz:                     800.0000
BogoMIPS:                        5986.10
Virtualization:                  VT-x
L1d cache:                       64 KiB
L1i cache:                       64 KiB
L2 cache:                        512 KiB
L3 cache:                        4 MiB
NUMA node0 CPU(s):               0-3
Vulnerability Itlb multihit:     KVM: Mitigation: VMX disabled
Vulnerability L1tf:              Mitigation; PTE Inversion; VMX conditional cach
                                 e flushes, SMT vulnerable
Vulnerability Mds:               Mitigation; Clear CPU buffers; SMT vulnerable
Vulnerability Meltdown:          Mitigation; PTI
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled v
                                 ia prctl and seccomp
Vulnerability Spectre v1:        Mitigation; usercopy/swapgs barriers and __user
                                  pointer sanitization
Vulnerability Spectre v2:        Mitigation; Full generic retpoline, IBPB condit
                                 ional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds:             Mitigation; Microcode
Vulnerability Tsx async abort:   Not affected
Flags:                           fpu vme de pse tsc msr pae mce cx8 apic sep mtr
                                 r pge mca cmov pat pse36 clflush dts acpi mmx f
                                 xsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rd
                                 tscp lm constant_tsc arch_perfmon pebs bts rep_
                                 good nopl xtopology nonstop_tsc cpuid aperfmper
                                 f pni pclmulqdq dtes64 monitor ds_cpl vmx smx e
                                 st tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_
                                 1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
                                  aes xsave avx f16c rdrand lahf_lm abm cpuid_fa
                                 ult epb invpcid_single pti ssbd ibrs ibpb stibp
                                  tpr_shadow vnmi flexpriority ept vpid ept_ad f
                                 sgsbase tsc_adjust bmi1 avx2 smep bmi2 erms inv
                                 pcid xsaveopt dtherm ida arat pln pts md_clear 
                                 flush_l1d

答案1

我看到 1 个插槽、每个插槽 2 个内核、每个内核 2 个线程（正如我所期望的，具有双核的 Intel Core 系列处理器）。CPU 列表 (0-3) 将每个线程报告为一个 CPU，因为就操作系统或其他软件而言，情况确实如此：每个线程都是一个“CPU”。

这一直是超线程核心的报告方式。

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