$ cat /proc/meminfo 
MemTotal:       65903680 kB
MemFree:           45248 kB
Buffers:           68096 kB
Cached:         25580736 kB
SwapCached:         3968 kB
Active:         49129408 kB
Inactive:       14774464 kB
Active(anon):   36249280 kB
Inactive(anon):  2016320 kB
Active(file):   12880128 kB
Inactive(file): 12758144 kB
Unevictable:       12160 kB
Mlocked:           12160 kB
SwapTotal:       8384448 kB
SwapFree:        8351616 kB
Dirty:           3876608 kB
Writeback:         78336 kB
AnonPages:      38264896 kB
Mapped:            68096 kB
Shmem:              3584 kB
Slab:             882496 kB
SReclaimable:     696704 kB
SUnreclaim:       185792 kB
KernelStack:        7824 kB
PageTables:        18752 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    41336256 kB
Committed_AS:   40149312 kB
VmallocTotal:   8589934592 kB
VmallocUsed:      428480 kB
VmallocChunk:   8589406784 kB
HardwareCorrupted:     0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:      16384 kB