box@luna:~$ cat /proc/meminfo
MemTotal: 5776236 kB
MemFree: 271992 kB
MemAvailable: 2566244 kB
Buffers: 315092 kB
Cached: 2478912 kB
SwapCached: 7188 kB
Active: 3043920 kB
Inactive: 2010000 kB
Active(anon): 1710228 kB
Inactive(anon): 1041764 kB
Active(file): 1333692 kB
Inactive(file): 968236 kB
Unevictable: 84 kB
Mlocked: 84 kB
SwapTotal: 5951996 kB
SwapFree: 5773048 kB
Dirty: 988 kB
Writeback: 0 kB
AnonPages: 2254648 kB
Mapped: 452100 kB
Shmem: 492076 kB
Slab: 326492 kB
SReclaimable: 245740 kB
SUnreclaim: 80752 kB
KernelStack: 12480 kB
PageTables: 51132 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 8840112 kB
Committed_AS: 8255596 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 576176 kB
VmallocChunk: 34359156220 kB
HardwareCorrupted: 0 kB
AnonHugePages: 479232 kB
CmaTotal: 0 kB
CmaFree: 0 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 824420 kB
DirectMap2M: 5130240 kB
box@luna:~$ free -m
total used free shared buffers cached
Mem: 5640 5376 264 481 307 2421
-/+ buffers/cache: 2646 2993
Swap: 5812 174 5637