08-30-2010
Quote:
Originally Posted by
newbie_01
- top command reported free memory from this server is at 226MB out of 7968M reported. A bit worried that the server may run out of memory and start swapping. So far, for a week now, top reports no swapping so not that worried at this stage.
"top" isn't part of the OS. It is known to report confusing data as it doesn't use always the same terminology as Solaris does. Better to avoid it and use prstat, vmstat, "swap -s" and the likes.
Quote:
- From the ps -efl output, the memory usage seems to be constant at 115M more or less, is there a server/kernel/database setting that sets minimum memory usage to start at 115M per process? This seem to be the case for oracle processes but can't find anything on the database settings that suggest this is getting set in the database ...
There is hopefully no minimum memory usage kernel tuning per process. I would guess this is simply due to shared memory accounted to each process.
Quote:
- Any advise on how to troubleshoot this problem will be very much appreciated. Thanks in advance.
What problem do you want to troubleshoot ? You tell there is no swapping reported so IMHO nothing to fix. You have plenty of available memory (most of the ZFS file data is available to applications should they need it) and anyway, unused memory is wasted memory.
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