[tlug] Re: Memory Nearly Peaked

[Tobias Diedrich <td@example.com>]

Nguyen Vu Hung wrote:

> Our server is running Redhat 7.x, Kernel 2.4.18, pentium 3 600MHz, 128MB
> RAM. Recently, I notice that Physical memory Usage always shows "98%".
> So what is the problem? Do I have to install more RAM?

> [vuhung@example.com vuhung]$ free
>              total       used       free     shared    buffers     cached
> Mem:        126784     116320      10464          0      19448      55212
> -/+ buffers/cache:      41660      85124

There is no problem :-)

You have 128MB total system memory of which 41MB are used by programs
and 85MB are used as cache :-)

On my 512MB system 136MB is used by programs and 377MB is used as cache.
linux just won't let your free memory go to waste and uses it to cache
filesystem reads/writes. The caches shrink automatically when an
application requests more memory.

-- 
Tobias								PGP: 0x9AC7E0BC
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