Physical Memory Fully Used and Swap is Not Used

From: Mudhalvan Moovarkku <>
Date: Tue, 23 Jun 2009 14:41:19 +0900
Message-ID: <>

Dear DBAs,

        We have recently migrated Oracle from 8.0.6 on HP-Unix to on Red Hat Linux

        Earlier the same application worked fine with 7GB RAM on HP-UNIX on PA-RISC

        Upgraded system on IBM X 3850 with 16GB RAM but still we have some performance issue.

        I knew there is some lagging because of Hardware Architecture but it is too bad 7 GB to 16GB RAM but still have performance.

        Please look at data collected from RDA. Looking at this scenario my physical memory is fullly used but Swap is not at all used.

Total Physical Memory 16032 MiB
Available Physical Memory 30 MiB

Swap: Max Size 24575 MiB 
Swap: Available 24505 MiB 
Swap: In Use 70 MiB 

	We know there is some performance issue in application. I would
like to make as much as possible from Database/Linux side tunning to provide atlease peaceful performance. Can any body through some light on why the swap is not at all used.

Mudhalvan M.M

Received on Tue Jun 23 2009 - 00:41:19 CDT

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