Re: Oracle shadow process

From: Robert Pegram <pegramrg_at_yahoo.com>
Date: Wed, 30 Jan 2002 11:47:41 -0800
Message-ID: <F001.00400FD8.20020130113056@fatcity.com>

If you are on Solaris, you may be interested in NOTE: 153655.1 SOLARIS: Determing Oracle Memory Usage on Solaris.

CUT <<<<<<<<
Many programs which display memory usage, like "top" or "ps -lf" do not distinguish between shared and private memory and show the SGA usage in each background and shadow process. Subsequently, it may appear as though Oracle is using several times more memory than what is actually installed on the system. To properly determine how much memory Oracle is using, you must use a tool which separates private and shared memory. One such tool is "/usr/proc/bin/pmap". CUT <<<<<<

Robert Pegram
Oracle DBA

• sonia pajerowski <spajerowski_at_yahoo.com> wrote:
  > Hello All,
  > How does oracle allocate memory to oracle shadow
  > process (client). eg. oracleORCL
  > (DESCRIPTION=(LOCAL=no
  > )(ADDRESS=(PROTOCOL=BEQ))).
  >
  > I have dedicated connections to the databases and
  > the
  > processes are using 320M-340M of memory. Is there
  > any
  > parameter I can change to reduce the memory
  > allocation
  > to about 30M or less.
  >
  > Current value for Sort area size value is 65536.
  >
  >
  > Thanks
  > Sonia P.
  >
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Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Robert Pegram
  INET: pegramrg_at_yahoo.com

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Received on Wed Jan 30 2002 - 13:47:41 CST