Subject: Re: Increasing SHMMAXPGS
To: Ignatios Souvatzis <ignatios@theory.cs.uni-bonn.de>
From: David Brownlee <abs@netbsd.org>
List: tech-kern
Date: 05/17/2002 10:26:03
On Fri, 17 May 2002, Ignatios Souvatzis wrote:
> On Fri, May 17, 2002 at 09:34:43AM +0100, David Brownlee wrote:
> > We default to SHMMAXPGS=1024, which seems rather small given this
> > is the maximum limit and changes to it shouldn't affect the amount
> > of memory in use unless an application takes advantage of a higher
> > limit.
> >
> > Ogle (to give an example) likes a SHMMAXPGS of 16384.
> >
> > Would anyone object to increasing the default to 16384 for all
> > platforms?
>
> yes.
>
> Thats 128 MB of virtual space on Amiga (and similiar PMAPs), and its pmap
> module is known to be unhappy when the virtual address space of a process
> is too big.
Thats a pretty compelling reason :)
Thanks.
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