It's beacuse of the Linux memory management. Almost all your RAM is filled up with cache files. When a process needs more memory, Linux simply frees what is needed by cleaning up some of that cache.
At work, I run pretty much the same services, plus an ICQ server (Iserverd, wich uses PostgreSQL) and a Samba server.
I also have a Novell eDirectory Server for Linux installed, wich I run from time to time.
I have only 256MB RAM and my memory usage rarely grows over 90%.


David Kramer wrote:
I just went through the exact same issue.  I used my System Monitor program
via my start menu -> System Tools(I think thats the path) to examine what
services were munching up memory.  Im guessing you have gnome installed?
Try using the System Monitor Program to see what your Memory consumption is
on a services basis.  For me I noticed that running XMMS and several major
servers at the same time caused my 1 GB mememory to be almost 100% consumed.
But I somewhat expected this result, since Im running MySql, ProFTPd,
Tomcat, and Apache, plus my normal PC usage(XMMS and Mozilla) at the same
time.  Any Java based application will munch massive amounts of memory.
Same with MySQL, since most queries are written to memory and not disk.
Hope this helps!  

thanks much,

DK

  
-----Original Message-----
From: Kelerion [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 19, 2003 10:20 AM
To: [EMAIL PROTECTED]
Subject: Memory usage


Hi guys.. hoping someone can explain something to me here..

I have just upgraded my RH9 box to 1Gb DDR.. I thought, rather
presumptuously that this might give me a little more space to 
play with
memory wise.. but after looking through 'top' I get the following:


--------------------------------------------------------------
-----------
108 processes: 107 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:   4.4% user   2.0% system   0.0% nice   0.0% 
iowait  93.6% idle
Mem:  1030908k av, 1021332k used,    9576k free,       0k 
shrd,   37020k
buff
                      801620k actv,   27560k in_d,   21440k in_c
Swap: 1020116k av,   14660k used, 1005456k free               
   804884k
cached
--------------------------------------------------------------
-----------

This doesn't make much sense to me.. as there is absolutely nothing
showing anywhere else in top that explains why '1021332k 
used' should be
appropriate..

I downloaded a Gnome prog that uses the gtop lib and got 
pretty much the
same results.. so I am stumped..

can someone explain to me why putting double the amount of ram in a
machine causes RH to chew it all up and not tell you why?  (joking: I
know it's probably not doing that and I am just missing a 
point somewhere)

thanks for any info

Craig



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