lscpu命令¶
示例¶
lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 52 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 32
On-line CPU(s) list: 0-31
Vendor ID: AuthenticAMD
Model name: AMD EPYC 9K84 96-Core Processor
CPU family: 25
Model: 17
Thread(s) per core: 2
Core(s) per socket: 16
Socket(s): 1
Stepping: 0
BogoMIPS: 5200.10
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid a
md_dcm tsc_known_freq pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy cr8_legacy abm sse4a misalignss
e 3dnowprefetch osvw topoext perfctr_core invpcid_single ibpb vmmcall fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx51
2bw avx512vl xsaveopt xsavec xgetbv1 avx512_bf16 clzero xsaveerptr wbnoinvd arat avx512vbmi umip avx512_vbmi2 vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq rdpid fsrm
Virtualization features:
Hypervisor vendor: KVM
Virtualization type: full
Caches (sum of all):
L1d: 512 KiB (16 instances)
L1i: 512 KiB (16 instances)
L2: 16 MiB (16 instances)
L3: 64 MiB (2 instances)
NUMA:
NUMA node(s): 1
NUMA node0 CPU(s): 0-31
Vulnerabilities:
Gather data sampling: Not affected
Itlb multihit: Not affected
L1tf: Not affected
Mds: Not affected
Meltdown: Not affected
Mmio stale data: Not affected
Reg file data sampling: Not affected
Retbleed: Not affected
Spec rstack overflow: Mitigation; safe RET, no microcode
Spec store bypass: Vulnerable
Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Spectre v2: Mitigation; Retpolines; IBPB conditional; STIBP disabled; RSB filling; PBRSB-eIBRS Not affected; BHI Not affected
Srbds: Not affected
Tsx async abort: Not affected
分析
CPU 概况(虚拟化中的 AMD EPYC)
项目
值
架构
x86_64
(64 位)型号名称
AMD EPYC 9K84 96-Core Processor
总线程数(CPU(s))
32
核心数(Core(s))
16(每个核心 2 线程)
插槽数(Socket)
1
线程/核
2(支持 SMT)
L3 缓存
64 MiB(2 个实例)
运行频率
BogoMIPS: 5200.10
,主频标称为2GHz
(见lshw
)虚拟化环境信息
项目
值
虚拟化类型
KVM(完全虚拟化)
BIOS
SeaBIOS v1.9.1(2014 年)
硬件厂商
Red Hat(显示为内存 DIMM 供应商)
支持的指令集特性
类别
特性
SIMD
SSE
,SSE2
,SSE4.1
,SSE4.2
,AVX
,AVX2
,AVX-512
系列完整支持加密
AES
,SHA_NI
,VAES
,VPCLMULQDQ
,RDRAND
,RDSEED
虚拟化
VMMCALL
,IBPB
,INVPCID
,UMIP
,FS/GS BASE
安全补丁
多数硬件漏洞已“Not affected”或已“Mitigation”处理
特殊
AVX512_VNNI
,AVX512_BF16
→ 适用于 AI 模型加速(低精度推理)