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Date:      Sun, 24 Jun 2001 14:55:29 +0930 (CST)
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org, Attila Nagy <bra@fsn.hu>
Subject:   Re: cvs commit: src/sys/i386/i386 machdep.c
Message-ID:  <XFMail.20010624145529.doconnor@gsoft.com.au>
In-Reply-To: <XFMail.010623224452.jhb@FreeBSD.org>

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On 24-Jun-2001 John Baldwin wrote:
> > I think it's not too easy and not an obvious task, but maybe it's worth
> > the extra work (people using big DBs on x86?)...
>  
>  Actually, it doesn't really help as much as it would seem, because the
>  virtual
>  address space of each process is still limited to 4gb, so it doesn't let you
>  run larger processes, it just lets you fit more of them into memory.

Or you have to write an extension to allow processes to map parts of the larger
space into their address space for use.
This is what W2k and BSD/OS do (according to my google search :)

Of course, once the extension is written then you have to modify the
application to use it, which in the case of a close source DB vendor could be
problematic.

---
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum

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