# free -m
              total        used        free      shared  buff/cache   available
Mem:          32158       29239         606        1683        2312         778
Swap:         65535        4024       61511

# cat /proc/meminfo
MemTotal:       32930564 kB
MemFree:          550396 kB
MemAvailable:     728972 kB
Buffers:              36 kB
Cached:          2114316 kB
SwapCached:       330176 kB
Active:         22527704 kB
Inactive:        2445272 kB
Active(anon):   22264116 kB
Inactive(anon):  2297592 kB
Active(file):     263588 kB
Inactive(file):   147680 kB
Unevictable:       26748 kB
Mlocked:           26748 kB
SwapTotal:      67108860 kB
SwapFree:       62989820 kB
Dirty:               376 kB
Writeback:             0 kB
AnonPages:      22867236 kB
Mapped:          1701904 kB
Shmem:           1698748 kB
Slab:             726108 kB
SReclaimable:     231572 kB
SUnreclaim:       494536 kB
KernelStack:       76432 kB
PageTables:       330412 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83574140 kB
Committed_AS:   189233696 kB
VmallocTotal:   34359738367 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
Percpu:            11328 kB
HardwareCorrupted:     0 kB
AnonHugePages:   2136064 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
Hugetlb:               0 kB
DirectMap4k:    26998176 kB
DirectMap2M:     6486016 kB
DirectMap1G:     1048576 kB

# vmstat -s
     32930564 K total memory
     29992136 K used memory
     22531864 K active memory
      2475660 K inactive memory
       565448 K free memory
           36 K buffer memory
      2372944 K swap cache
     67108860 K total swap
      4115456 K used swap
     62993404 K free swap
      4791314 non-nice user cpu ticks
       657177 nice user cpu ticks
       926413 system cpu ticks
     39162033 idle cpu ticks
       350382 IO-wait cpu ticks
        91609 IRQ cpu ticks
        58900 softirq cpu ticks
            0 stolen cpu ticks
     14012079 pages paged in
     25533584 pages paged out
       191704 pages swapped in
      1128960 pages swapped out
    545028673 interrupts
    850587808 CPU context switches
   1535484862 boot time
       146529 forks