memory and swap usage

Hi all,

Last week our system hanged  with low memory problem on server when  upgrading the oracle to 10.

We set the limit to projects as follow:

	attribs: process.max-file-descriptor=(basic,65536,deny)
	process.max-sem-nsems=(priv,2048,deny)
	project.max-sem-ids=(priv,1024,deny)
	project.max-shm-ids=(priv,1024,deny)
	project.max-shm-memory=(priv,21474836480,deny)

As you see I set limit to shared memory  20GB  at projects.

System memory is 32 GB .M4000 server.

By the way we set 20Gb limit, the swap usage is high from expected limit.

Swap usage on sapep user is 27GB.

NPROC USERNAME    SWAP    RSS MEMORY    TIME    CPU

85 root    777M    525M   1.6%    10:30:00    0.10%

49 sap    27G    3194M   9.7%    0:55:26    0.10%