[WBEL-users] Oracle 9i/10g on WBEL with Large amounts of RAM

[James Knowles]

>I am not sure if
>it is an Oracle issue or an OS problem.
>  
>

This is expected behaviour. You're simply misinterpreting what you're 
seeing.

* If a program doesn't need RAM, then the Linux kernel will use it for 
disk caching.
* If a program needs RAM, the kernel gives it the RAM. It takes first 
from free memory, then from the disk cache.
This keeps things as fast as possible.

No system that has been up and in use for any appreciable amount of time 
will show much "free" RAM. /proc/meminfo only reports the total amount 
of memory in use, including caching. It will not tell you how much 
Oracle uses.