# free -m
              total        used        free      shared  buff/cache   available
Mem:          32158       29547         308        1515        2302         639
Swap:         65535        6372       59163

# cat /proc/meminfo
MemTotal:       32930564 kB
MemFree:          320396 kB
MemAvailable:     653972 kB
Buffers:              12 kB
Cached:          2147608 kB
SwapCached:       560016 kB
Active:         20687732 kB
Inactive:        2374984 kB
Active(anon):   20351364 kB
Inactive(anon):  2125128 kB
Active(file):     336368 kB
Inactive(file):   249856 kB
Unevictable:       27368 kB
Mlocked:           27368 kB
SwapTotal:      67108860 kB
SwapFree:       60543580 kB
Dirty:              2916 kB
Writeback:             0 kB
AnonPages:      20897504 kB
Mapped:          1655096 kB
Shmem:           1557052 kB
Slab:             684720 kB
SReclaimable:     211588 kB
SUnreclaim:       473132 kB
KernelStack:       78992 kB
PageTables:       332184 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83574140 kB
Committed_AS:   190459480 kB
VmallocTotal:   34359738367 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
Percpu:            11712 kB
HardwareCorrupted:     0 kB
AnonHugePages:    872448 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:    28927392 kB
DirectMap2M:     4556800 kB
DirectMap1G:     1048576 kB

# vmstat -s
     32930564 K total memory
     30304784 K used memory
     20651864 K active memory
      2385184 K inactive memory
       277256 K free memory
           12 K buffer memory
      2348512 K swap cache
     67108860 K total swap
      6605984 K used swap
     60502876 K free swap
      4856372 non-nice user cpu ticks
       664107 nice user cpu ticks
       949746 system cpu ticks
      2521136 idle cpu ticks
        72417 IO-wait cpu ticks
        93122 IRQ cpu ticks
        59926 softirq cpu ticks
            0 stolen cpu ticks
     17291916 pages paged in
     29196185 pages paged out
       459317 pages swapped in
      1948344 pages swapped out
    554370831 interrupts
    866769083 CPU context switches
   1535484862 boot time
       149699 forks