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Date:      Wed, 11 Oct 2000 11:35:47 -0700
From:      "R. Joseph Wright" <rjoseph@mammalia.org>
To:        freebsd-questions@FreeBSD.org
Subject:   SHMMAXPGS settings for Oracle
Message-ID:  <20001011113547.A11478@mammalia.org>

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I'm setting up FreeBSD 4.1 to run Oracle for Linux.  The Oracle docs say the 
SHMMAX should be set to 0.5 * (physical memory), which in my case would be
0.5 * 131072 = 65536, if I understand correctly.  
From reading the tutorials and mailing list archives regarding Oracle on 
FreeBSD, I see that the SHMMAX setting is deprecated and the setting SHMMAXPGS 
should be used instead.
So, here is where I'm stuck.  If SHMMAX == (SHMMAXPGS * PAGE_SIZE + 1), as per 
LINT, then SHMMAXPGS == SHMMAX / PAGE_SIZE + 1, or 65536 / 8192 + 1, which is
9.  This is far different than the numbers given in the handbook or in the
tutorial at http://www.lf.net/lf/pi/oracle/install-linux-oracle-on-freebsd,
which are set at 10000 and 4097 respectively.
Has my logic gone wrong here?

Joseph


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