From owner-freebsd-questions@FreeBSD.ORG Wed Oct 31 19:14:38 2007 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 14DFF16A41A for ; Wed, 31 Oct 2007 19:14:38 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from smtp-vbr13.xs4all.nl (smtp-vbr13.xs4all.nl [194.109.24.33]) by mx1.freebsd.org (Postfix) with ESMTP id 9D42213C4A8 for ; Wed, 31 Oct 2007 19:14:37 +0000 (UTC) (envelope-from rsmith@xs4all.nl) Received: from slackbox.xs4all.nl (slackbox.xs4all.nl [213.84.242.160]) by smtp-vbr13.xs4all.nl (8.13.8/8.13.8) with ESMTP id l9VJCxXp026985; Wed, 31 Oct 2007 20:13:00 +0100 (CET) (envelope-from rsmith@xs4all.nl) Received: by slackbox.xs4all.nl (Postfix, from userid 1001) id 7FD43B82D; Wed, 31 Oct 2007 20:12:59 +0100 (CET) Date: Wed, 31 Oct 2007 20:12:59 +0100 From: Roland Smith To: Stephen Allen Message-ID: <20071031191259.GA57500@slackbox.xs4all.nl> Mail-Followup-To: Stephen Allen , David Naylor , freebsd-questions@freebsd.org References: <20071030173119.GE54116@slackbox.xs4all.nl> <47285894.8050705@brookes.ac.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="k1lZvvs/B4yU6o8G" Content-Disposition: inline In-Reply-To: <47285894.8050705@brookes.ac.uk> X-GPG-Fingerprint: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 X-GPG-Key: http://www.xs4all.nl/~rsmith/pubkey.txt X-GPG-Notice: If this message is not signed, don't assume I sent it! User-Agent: Mutt/1.5.16 (2007-06-09) X-Virus-Scanned: by XS4ALL Virus Scanner Cc: David Naylor , freebsd-questions@freebsd.org Subject: Re: ABI for i386 binaries under FreeBSD-amd64 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 31 Oct 2007 19:14:38 -0000 --k1lZvvs/B4yU6o8G Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Oct 31, 2007 at 10:27:32AM +0000, Stephen Allen wrote: > Roland Smith wrote: >> Than they should run i386. You only _need_ (as opposed to "nice to play >> with" :-) amd64 if you run out of address space on a typical workload. >=20 > What if you have more than 3Gb of RAM to play with... would you have to u= se=20 > amd64 then? You could use PAE (Physical Address Extensions) on i386. That gives the CPU access to 64 GB. But that does not mean all that address space is available for programs. It does not influence the standard limits on process sizes though. See /sys//include/vmparam.h and /sys/conf/NOTES. Roland --=20 R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) --k1lZvvs/B4yU6o8G Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFHKNO7EnfvsMMhpyURAlkhAJ452GWlMQcj2uxNcRtGL+5CZloz3ACcCiHh RnbNZwCkgvy0/BWwY5aKoNo= =w/0J -----END PGP SIGNATURE----- --k1lZvvs/B4yU6o8G--