Re: Dedicated connections and Memory usage

From: Rachel Carmichael <wisernet100_at_yahoo.com>
Date: Wed, 26 Jun 2002 05:33:28 -0800
Message-ID: <F001.004885AB.20020626053328@fatcity.com>

SGA is shared memory so it will show up looking as though the individual connections are as large as the SGA (or larger, to include the PGA). In reality they are sharing a large chunk of the memory

ipcs -m will show you the memory segment allocation for the SGA, subtract that from the memory each process is using to get the REAL memory size

There is also a unix command that will show the real memory allocation for a process, rssize is the field but I am sleep-deprived this morning and can't remember it off the top of my head... but someone here will know :)

• "Loughmiller, Greg" <Greg.Loughmiller_at_cingular.com> wrote:
  > Need a little assistance on some "concepts", so to speak..
  >
  > When looking at the processes(dedicated connections) of an 816
  > database on a
  > UNIX environment-the memory used for each process appears to be the
  > same as
  > the SGA.
  > It's been awhile since I had to "dig" into this, but I thought that
  > the
  > dedicated connections had their own PGA(real memory of the machine).
  > So is
  > it coincidence that the dedicated connections (all 180 of them) are
  > using
  > the same amount of memory as the SGA??
  >
  > What am I missing here???
  >
  > TIA
  >
  >
  > Greg Loughmiller
  > Sr Manager - Enterprise Data Architecture
  > gloughmiller (IPS)
  > 678.893.3217 (office)
  >
  >
  > --
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  > Author: Loughmiller, Greg
  > INET: Greg.Loughmiller_at_cingular.com
  >
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Author: Rachel Carmichael
  INET: wisernet100_at_yahoo.com

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Received on Wed Jun 26 2002 - 08:33:28 CDT