When I cat /proc/meminfo, the report looks like this:
MemTotal: 2034284 kB
MemFree: 1432728 kB
Buffers: 16568 kB
Cached: 324864 kB
SwapCached: 0 kB
Active: 307344 kB
Inactive: 256916 kB
Active(anon): 223020 kB
Inactive(anon): 74372 kB
Active(file): 84324 kB
Inactive(file): 182544 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 1152648 kB
HighFree: 600104 kB
LowTotal: 881636 kB
LowFree: 832624 kB
SwapTotal: 4200960 kB
SwapFree: 4200960 kB
Dirty: 60 kB
Writeback: 0 kB
AnonPages: 222868 kB
Mapped: 80596 kB
Shmem: 74564 kB
Slab: 24268 kB
SReclaimable: 14024 kB
SUnreclaim: 10244 kB
KernelStack: 1672 kB
PageTables: 2112 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 5218100 kB
Committed_AS: 833352 kB
VmallocTotal: 122880 kB
VmallocUsed: 13916 kB
VmallocChunk: 50540 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
HugePages_Surp: 0
Hugepagesize: 4096 kB
DirectMap4k: 20472 kB
DirectMap4M: 888832 kB
I got the formula for calculating Memtotal:
Memtotal = MemFree + Cached + Active + Inactive + Mapped + Shmem + Slab + PageTables + VmallocUsed
but I don’t know if the formula is right or not, can someone help clarify it?
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