prstat memory display on Solaris 10

From: Binh Pham <binhpham15_at_hotmail.com>
Date: Fri, 15 Jun 2007 11:53:03 -0700
Message-ID: <BAY103-DAV20791D15C93FD080163309D21E0@phx.gbl>
Message-ID: <011d01c7af7e$66e767d0$46fc4e89@jpl.nasa.gov>

What are the commands to display the proper usages of memory on Solaris 10?

Thanks to all that have replied to this email.

-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Powell, Mark D
Sent: Friday, June 15, 2007 5:28 AM
To: Oracle-L
Subject: RE: *****SPAM***** prstat memory display on Solaris 10

Many UNIX utilities cannot properly account for shared memory usage. Since there are dozens to hundreds of Oracle processes on the system and each of them accesses the SGA which is shared memory some shared memory is being incorrectly counted as part of each process's memory by the utility.  

• Mark D Powell -- Phone (313) 592-5148

  ---

        From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Binh Pham

	Sent: Thursday, June 14, 2007 3:59 PM
	To: 'Oracle-L'
	Subject: *****SPAM***** prstat memory display on Solaris 10
	
	

	When I issue the command "prstat -a", the memory displayed is not

explainable. May be someone can help me with this.          

        We know that the server has only 32Gigs of real memory and 20 Gigs of swap space. Why does it display "oracle" is using 924G of memory?          

        Thanks.                    

        NPROC USERNAME SIZE RSS MEMORY TIME CPU             90 root 1221M 377M 0.0% 3:46:46 6.3%

           177 oracle 924G 878G 100% 0:42:15 0.2%

            96 applmgr 2672M 1254M 0.1% 0:30:07 0.1%

             2 srsuser 15M 13M 0.0% 0:00:00 0.0%

             1 noaccess 190M 88M 0.0% 0:33:48 0.0%

             4 gharibia 12M 5816K 0.0% 0:00:00 0.0%

             4 meigu 13M 1928K 0.0% 0:00:02 0.0%

             3 gchao 11M 24K 0.0% 0:00:04 0.0%

             7 cdeleon 32M 6048K 0.0% 0:00:00 0.0%

             2 bpham 9840K 2576K 0.0% 0:00:04 0.0%

             1 smmsp 7744K 1520K 0.0% 0:00:04 0.0%

             1 nagios 3176K 616K 0.0% 0:00:34 0.0%

             6 daemon 22M 4928K 0.0% 0:04:26 0.0%

        Total: 394 processes, 933 lwps, load averages: 2.38, 2.41, 2.47

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Received on Fri Jun 15 2007 - 13:53:03 CDT