Date: Thu, 28 Oct 1999 23:24:20 -0400 (EDT) From: Chuck Youse <cyouse@paradox.nexuslabs.com> To: Mike Smith <mike@smith.net.au> Cc: Michael Beckmann <petzi@apfel.de>, Matthew Dillon <dillon@apollo.backplane.com>, Julian Elischer <julian@whistle.com>, hackers@FreeBSD.ORG Subject: Re: Limitations in FreeBSD Message-ID: <Pine.BSF.4.10.9910282319290.4247-100000@paradox.nexuslabs.com> In-Reply-To: <199910282253.PAA02302@dingo.cdrom.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> > That=B4s why I=B4m looking for a way of having large mmap=B4able=20 > > files. Are you saying that ALL Intel CPUs, including PIII, can only=20 > > address 4 GB?=20 >=20 > That's correct; it's why the ia32 architecture has a '32' in its name. I don't believe that's true. I don't have any hard evidence within easy reach, but with the introduction of the Pentium, the address space was increased. A user process, of course, can only have 4G of addressible space (32-bit addresses) but the OS can map pages of the 4G space into a larger area. Something to do with 4MB pages instead of 4K pages. =20 Again, I could be wrong on this one. Chuck Youse To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.10.9910282319290.4247-100000>