Hello About Linux in Application Manager

Hi

We are using the Application Manger 9 for monitoring the Linux server. We are monitoring through SNMP
But we have one problme in Linux that is of RAM use in the Physical Memory Utilization(%) it show 93 % usaged

RAM but it in General it is of Disk Cache of Linux it is showing. We Require Free RAM like

total memory used = total memory (.1.3.6.1.4.1.2021.4.5.0) - free memory (.1.3.6.1.4.1.2021.4.6.0)

- memory used by anything else than disk cache = total memory (.1.3.6.1.4.1.2021.4.5.0) - free memory (.1.3.6.1.4.1.2021.4.6.0) - memory used for disk cache (.1.3.6.1.4.1.2021.4.15.0)

Waiting for the Replay

can you help in this
My email id is narenp2010@yahoo.com