Red Hat / Fedora :: Memory Usage Always High And Utilizing Full?

Jul 14, 2010

In our database, when checking the memory used using top command, we are always seeing 32 GB RAM utilized. We have set the sga_max_size to 8gb and PGA to 3 gb. We have tried shutting down oracle db and then the memory went down to 24GB when checked using top command. After cold reboot of the DB server, it gone down to 1.5 GB.

But once the users are started using after end of day, the memory again gone back to 32 GB.

Top Command output (truncated)
======================
top - 15:18:27 up 5 days, 19:43, 1 user, load average: 0.55, 0.39, 0.32
Tasks: 599 total, 3 running, 596 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.5%us, 0.4%sy, 0.0%ni, 97.9%id, 0.1%wa, 0.0%hi, 0.1%si, 0.0%st Mem: 32949628k total, 32823336k used, 126292k free, 238808k buffers

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Code:

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