Memory Utilization is 81%

[balajik]

Hi All,

We are using EP core on NW 7.31, Oracle 11.2, Linux.....

Even when no user sessions or any task, or any job running on the application server, memory utilization (not the memory consumption) is 81%.

We have recently added 10 GB of physical memory to the already existing of 16 GB when memory utilization use to be 99% always. After adding extra memory utilization came down to 42% and then again after couple of days shoot upto 81%.

Please guide what to check to know the what is consuming memory even when nothing is going on the application server.

Thanks,

Kumar

[Former Member]

have you checked which process is consuming memory ?

[balajik]

Please help where to check in NWA

[david_liu1]

Hello,

Check SAP Note 1382721 - Linux: Interpreting the output of the command 'free'

Here is the explanation of the numbers that you could observe in AS Java
Overview functionality into NetWeaver Administrator:
* "freemem" means memory which is not allocated currently by anything;
* "availmem" means freemem + OS buffers + OS caches. When there is free
memory it is used by Linux kernel to buffer parts of the file system for
better performance. If process which are running require more memory OS
buffers and caches are shrunk;
* "physmem" is the whole memory available to OS (RAM).

Please note that those numbers are reported from the operating system.
There are thresholds in OS level that could be used to manage available
memory behavior (if you want to change it in some way). But you will
need to involve an OS expert for this.

Regards,

David

[balajik]

Hi David,

Thanks for your quick reply....I understand the memory usage. My question what caused memory utilization shoot from 42-52% to 81% after couple of days, when there is no action being performed at all. Even when no action is being performed on the application memory and no user logged (except me) utilization still show 81%.

Thanks,

Kumar