From: | Patrick Welche <prlw1(at)newn(dot)cam(dot)ac(dot)uk> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Merlin Moncure <merlin(dot)moncure(at)rcsonline(dot)com>, PostgresSQL Hackers Mailing List <pgsql-hackers(at)postgresql(dot)org>, pgsql-advocacy(at)postgresql(dot)org |
Subject: | Re: Changing the default configuration (was Re: [HACKERS] PostgreSQL Benchmarks) |
Date: | 2003-02-11 16:44:34 |
Message-ID: | 20030211164434.B15688@quartz.newn.cam.ac.uk |
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Lists: | pgsql-advocacy 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
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