Web Hosting Talk : Web Hosting Main Forums : Hosting Security and Technology : cat /proc/meminfo Cached value too high,

[kimkim2]

I have bough a dedicated server with 2GB Ram, i have installed Hypervm and so surpise when my server is using most of my memory.

I type cat /proc/meminfo
[root@srv ~]# cat /proc/meminfo
MemTotal: 1784832 kB
MemFree: 47576 kB
Buffers: 62976 kB
Cached: 1454172 kB
SwapCached: 84 kB
Active: 251024 kB
Inactive: 1347412 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 1784832 kB
LowFree: 47576 kB
SwapTotal: 2097144 kB
SwapFree: 2096988 kB
Dirty: 96 kB
Writeback: 0 kB
AnonPages: 81324 kB
Mapped: 26076 kB
Slab: 62488 kB
PageTables: 8844 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 2989560 kB
Committed_AS: 416152 kB
VmallocTotal: 34359738367 kB
VmallocUsed: 2252 kB
VmallocChunk: 34359735799 kB


Is this normal when Cached: 1454172 kB ?

[oldunis]

Yes it is normal. From what I remember, cached memory is just memory that has been previously used. If a program that used that cached memory starts, it will use it. Otherwise, if another program needs some RAM and there isn't any free, it will use the cached one.

So you have 1454172kb + 47576kb of free RAM

[kimkim2]

great, thank you so much

[RBBOT]

cached memory is just memory that has been previously used.

Almost - it's data that has been previously read from disk that is cached to reduce the frequency of future disk reads whether they come from the same program or not. But it will be released when ram is required by a program.