linux查看服务器总内存和空闲内存的方法

linux 查看系统内存总量

# grep MemTotal /proc/meminfo
MemTotal:       16267724 kB

linux 查看系统剩余内存

# grep MemFree /proc/meminfo
MemFree:         2903748 kB

/proc/memberinfo 清单

# cat /proc/meminfo
MemTotal:       16267724 kB
MemFree:         2877576 kB
MemAvailable:    5083188 kB
Buffers:          279844 kB
Cached:          1482672 kB
SwapCached:            0 kB
Active:         10577816 kB
Inactive:        1068832 kB
Active(anon):    9887764 kB
Inactive(anon):   291836 kB
Active(file):     690052 kB
Inactive(file):   776996 kB
Unevictable:           0 kB
Mlocked:               0 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:              1212 kB
Writeback:             0 kB
AnonPages:       9884272 kB
Mapped:           561808 kB
Shmem:            295468 kB
Slab:            1193424 kB
SReclaimable:    1076904 kB
SUnreclaim:       116520 kB
KernelStack:       32480 kB
PageTables:        95620 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:     8133860 kB
Committed_AS:   22047040 kB
VmallocTotal:   34359738367 kB
VmallocUsed:       46684 kB
VmallocChunk:   34359604344 kB
HardwareCorrupted:     0 kB
AnonHugePages:   3067904 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      173952 kB
DirectMap2M:     9263104 kB
DirectMap1G:     9437184 kB

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