meminfo - test before
MemTotal: 16376256 kB
MemFree: 14805540 kB
MemAvailable: 15134312 kB
Buffers: 64580 kB
Cached: 517416 kB
SwapCached: 0 kB
Active: 956132 kB
Inactive: 372856 kB
Active(anon): 748424 kB
Inactive(anon): 20696 kB
Active(file): 207708 kB
Inactive(file): 352160 kB
Unevictable: 0 kB
Mlocked: 0 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 84 kB
Writeback: 0 kB
AnonPages: 681844 kB
Mapped: 325064 kB
Shmem: 22136 kB
Slab: 75644 kB
SReclaimable: 44360 kB
SUnreclaim: 31284 kB
KernelStack: 7680 kB
PageTables: 24444 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 8188128 kB
Committed_AS: 3362276 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 0 kB
VmallocChunk: 0 kB
HardwareCorrupted: 0 kB
AnonHugePages: 315392 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 2048 kB
DirectMap4k: 163720 kB
DirectMap2M: 5017600 kB
DirectMap1G: 11534336 kB