New /proc/meminfo: What is cached?

Oleg Zabluda (zabluda@math.psu.edu)
13 Mar 1996 00:38:59 GMT

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In newer kernels /proc/meminfo contains new number cached:

(ttyp2)marianna:~> cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 15380480 14794752 585728 8298496 217088 5324800
Swap: 33509376 4829184 28680192
MemTotal: 15020 kB
MemFree: 572 kB
MemShared: 8104 kB
Buffers: 212 kB
Cached: 5200 kB
SwapTotal: 32724 kB
SwapFree: 28008 kB

What is it? Do I understand correctly that

MemShared - Cached = <user processes shared memory>?

Thank you for your answer.

Oleg.

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