Top and RAM information

[generic_1]

If these are identical boxes running identical hardware and ram.

do a kmtune and make sure your kernel stuff matches up

do a swapinfo -t make sure your swap matches up

dmesg will show how much physical ram

do a swlist -l and make sure your patches are matching up.

UNIX95= ps -eo 'vsz pid args' |sort -nr |head -20
shows the top contendors for memory

compare uptime between your machines too
I suspect where you are concerned you might be dealing with a memory leak

If that is a case see if there is a patch for the suspect app.

Personally id start with the UNIX95 and the swapinfo -t if i suspect memory issues and look for a patch. Just my two cents :)

Good luck with your quest for more RAM free.