在Linux系統中,可以通過查看/proc/cpuinfo
文件來獲取CPU的相關信息,包括緩存大小。以下是具體步驟:
lscpu
命令lscpu
L1d cache
: L1數據緩存大小L1i cache
: L1指令緩存大小L2 cache
: L2緩存大小L3 cache
: L3緩存大小例如,輸出可能包含如下信息:
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 158
Stepping: 9
CPU MHz: 2300.000
BogoMIPS: 4600.00
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 8192K
...
/proc/cpuinfo
文件cat /proc/cpuinfo
grep -E 'cache|L1|L2|L3' /proc/cpuinfo
這將顯示所有包含緩存信息的行。例如,輸出可能包含如下信息:
cache size: 32 KB
cache alignment: 64 bytes
physical id: 0
siblings: 4
core id: 0
cpu cores: 4
apicid: 0
initial apicid: 0
fpu: yes
fpu_exception: yes
cpuid level: 22
wp: yes
flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est 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 3dnowprefetch cpuid_fault epb invpcid_single pti ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d
bugs: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit
bogomips: 4600.00
clflush size: 64
...
通過以上方法,你可以輕松地找到并查看Linux系統中CPU的緩存大小。