# cat /proc/cpuinfo
例如 AWS EC2 Micro Instances 的資料：
processor : 0 #CPU核心編號，不是指有幾棵CPU
vendor_id : GenuineIntel
cpu family : 6
model : 45
model name : Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz
stepping : 7
cpu MHz : 1795.672
cache size : 20480 KB
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu de tsc msr pae cx8 sep cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm up rep_good unfair_spinlock pn
i pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes avx hypervisor lahf_lm
bogomips : 3591.34
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
另一個範例 Raspberr PI
Processor : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS : 697.95
Features : swp half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xb76
CPU revision : 7
Hardware : BCM2708
Revision : 000d
Serial : 00000000127fd949
雙 CPU 的系統就像這樣
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping : 4
cpu MHz : 2793.298
cache size : 25600 KB
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu de tsc msr pae cx8 cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm rep_good aperfmperf unfair_spinloc
k pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes avx f16c rdrand hypervisor lahf_lm ida arat epb pln pts dts fsgsbase er
ms
bogomips : 5586.59
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
stepping : 4
cpu MHz : 2793.298
cache size : 25600 KB
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu de tsc msr pae cx8 cmov pat clflush mmx fxsr sse sse2 ss ht syscall nx lm rep_good aperfmperf unfair_spinloc
k pni pclmulqdq ssse3 cx16 sse4_1 sse4_2 x2apic popcnt aes avx f16c rdrand hypervisor lahf_lm ida arat epb pln pts dts fsgsbase er
ms
bogomips : 5586.59
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
# cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq
2500000
# cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq
1600000
查詢記憶體、記憶體使用狀況
MemTotal: 604676 kB 記憶體總數
MemFree: 167340 kB
Buffers: 82336 kB
Cached: 244292 kB
SwapCached: 0 kB
Active: 176840 kB
Inactive: 166988 kB
Active(anon): 17280 kB
Inactive(anon): 108 kB
Active(file): 159560 kB
Inactive(file): 166880 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 24 kB
Writeback: 0 kB
AnonPages: 17216 kB
Mapped: 6376 kB
Shmem: 188 kB
Slab: 74832 kB
SReclaimable: 26280 kB
SUnreclaim: 48552 kB
KernelStack: 552 kB
PageTables: 2712 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 302336 kB
Committed_AS: 78200 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 5208 kB
VmallocChunk: 34359732976 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 629760 kB
DirectMap2M: 0 kB
