Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC)

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the top command does not display my memory usage correctly

edited Jun 13, 2019 5:00AM in Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC) 5 commentsAnswered

My system:

OS Server: SunOS: 5.10 Generic_150400-11 sun4v sparc sun4v  and only for oracle database with 256G physical memory.

Oracle DB with asm : 10.2.0.5.0 single alone with 100G .

Symtom:

After restarting the oracle database server, the top command displays the correct information about physical memory and free memory.

Then, oracle database mounted with sga_max_target =100G, the top did display my memory usage accurately. But about a day later, no service running other than oracle, it did not display my memory usage correctly. ( “34G free mem” ??)  (*).

Later, I tried to turn off the oracle database and stop all other services on this server, the top command did not correctly display my memory usage

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