Horton

Re: Changing the default configuration (was Re: [HACKERS] PostgreSQL Benchmarks)

Patrick Welche <prlw1@newn.cam.ac.uk>

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From: Patrick Welche <prlw1@newn.cam.ac.uk>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Merlin Moncure <merlin.moncure@rcsonline.com>, PostgresSQL Hackers Mailing List <pgsql-hackers@postgresql.org>, pgsql-advocacy@postgresql.org
Date: 2003-02-11T16:44:34Z
Lists: pgsql-hackers, pgsql-performance 
On Tue, Feb 11, 2003 at 11:20:14AM -0500, Tom Lane wrote:
...
> We could retarget to try to stay under SHMMAX=4M, which I think is
> the next boundary that's significant in terms of real-world platforms
> (isn't that the default SHMMAX on some BSDen?).
...

Assuming 1 page = 4k, and number of pages is correct in GENERIC kernel configs,
SHMMAX=4M for NetBSD (8M for i386, x86_64)

Cheers,

Patrick