Common question: I see XX% of Used Memory but I don't know who is using it and how?   A simple question but there is no simple answer as memory use if complex. nmon then hit "m" will quickly show you a few big uses of memory as below:       The shared memory used by lots of applications like DB2 and Oracle - check the SEGSZ for the size. The Owner column usually tells you what it is used for like the oracle user for the SGA or db2inst1 for the DB2 buffer cache. Then it is down to the processes and this gets... [More]

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