| Memory usage increasing on Oracle RAC [message #538917] |
Tue, 10 January 2012 06:30  |
Modaya
Messages: 10
Registered: September 2008
Location: Colombo
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Junior Member |
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After the reboots each system was using around 30 GB of memory... now that it's been up for a week memory is up to 98GB used on each system. None of the systems are swapping.
Mem: 98999084k total, 97937116k used, 1061968k free, 774900k buffers
Swap: 16779884k total, 0k used, 16779884k free, 89510312k cached
any idea why this can happen or where to check ?
Thanks a lot...
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| Re: Memory usage increasing on Oracle RAC [message #538929 is a reply to message #538917] |
Tue, 10 January 2012 07:29  |
John Watson
Messages: 8963
Registered: January 2010
Location: Global Village
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Senior Member |
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You didn't say what your operating system is, but if it is (for example) Linux or AIX, any "spare" memory will eventually be used by the OS for caching. You should never have more than a small amount of free memory once the system has stabilized. I would hope that most OSs work like this. Afterall, if you aren't using it, you are wasting it.
[update: I just noticed that you did say RHEL. So there you go]
[Updated on: Tue, 10 January 2012 07:31] Report message to a moderator |
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