1. /proc/meminfo
Ubuntu [21:24:03] ~
$ cat /proc/m
mdstat meminfo misc modules mounts mtrr
Ubuntu [21:24:03] ~
$ cat /proc/meminfo
MemTotal: 4039176 kB
MemFree: 2055004 kB
MemAvailable: 2138952 kB
Buffers: 22528 kB
Cached: 243984 kB
SwapCached: 59464 kB
Active: 1284028 kB
Inactive: 560252 kB
Active(anon): 1099636 kB
Inactive(anon): 474752 kB
Active(file): 184392 kB
Inactive(file): 85500 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 969964 kB
SwapFree: 579308 kB
Dirty: 56 kB
Writeback: 0 kB
AnonPages: 1551440 kB
Mapped: 69568 kB
Shmem: 84 kB
Slab: 82848 kB
SReclaimable: 37660 kB
SUnreclaim: 45188 kB
KernelStack: 4192 kB
PageTables: 9644 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2989552 kB
Committed_AS: 3738756 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 0 kB
VmallocChunk: 0 kB
HardwareCorrupted: 0 kB
AnonHugePages: 0 kB
ShmemHugePages: 0 kB
ShmemPmdMapped: 0 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 663424 kB
DirectMap2M: 3530752 kB
DirectMap1G: 2097152 kB
MemFreeMemAvailable: 在不使用交换空间的情况下，启动一个应用可用的最大内存BuffersCachedPageTables: 内存页页面大小
实际可以挪用的内存数为free+cache+buffer
实际使用的内存数为used-cache-buffer(total-free-cache-buffer),
2. /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 85
model name : Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz
stepping : 4
microcode : 0x1
cpu MHz : 2500.014
cache size : 33792 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips : 5000.02
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 : 85
model name : Intel(R) Xeon(R) Platinum 8163 CPU @ 2.50GHz
stepping : 4
microcode : 0x1
cpu MHz : 2500.014
cache size : 33792 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx avx512f avx512dq rdseed adx smap avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips : 5000.02
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management: