[tlug] Memory 100% used. Is that a Bad Thing(tm)?

["Jean-Christian Imbeault" <jean_christian@example.com>]

I'm running my own Apache server (1.3.26 on RH 7.2) and it has about 150-250 
clients connected at any one time. If I run top I get the following:


11:18am  up 41 days, 19:12,  1 user,  load average: 0.22, 0.11, 0.09
231 processes: 230 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:  0.5% user,  3.7% system,  0.0% nice, 95.6% idle
Mem:   516820K av,  512368K used,    4452K free,       0K shrd,   14648K 
buff
Swap: 1052216K av,   15632K used, 1036584K free                  333960K 
cached


I have 512M of RAM and top shows that it is all being used. But almost no 
swap space is being used ...

Should I get more RAM or is it normal for Linux to use all the RAM it can 
get?

Jc

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