Physical memory

[Compact]

I've got a Ubuntu server as a web server using apache. Pysical memory is always 94 % used, is it logic? How can I solve it if it is a problem?

[Kurt`]

It's just the way Linux works.

In addition to currently running programs being loaded into memory, Linux also likes to cache lots of stuff in ram.

High ram usage isn't a problem, as all the cached stuff is unloaded as soon as a program needs that space (it's instant).

Check the attachment. It's a screenshot of PHPSysInfo (http://phpsysinfo.sf.net) running on my server.

To find out how much ram I am really using, I would subtract the "buffers" and "cached" from the total being "used".

[Compact]

Ok, thank you for you answer, so it is normal: http://www.alcalleop.net/phpsysinfo ? I also have phpsysinfo.
I think the server is down now...

[zzHanks]

To find out how much ram I am really using, I would subtract the "buffers" and "cached" from the total being "used".
I don't understand why you have to do that to get the real thing

Could someone explain please?

Edit:
I think I get it, just had to think a little bit.