From owner-freebsd-hardware@FreeBSD.ORG Thu Aug 30 12:08:35 2007 Return-Path: Delivered-To: freebsd-hardware@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 586AC16A46C for ; Thu, 30 Aug 2007 12:08:35 +0000 (UTC) (envelope-from freebsd-hardware@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 1543613C428 for ; Thu, 30 Aug 2007 12:08:34 +0000 (UTC) (envelope-from freebsd-hardware@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1IQhmY-0007WR-OH for freebsd-hardware@freebsd.org; Thu, 30 Aug 2007 13:01:50 +0200 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 Aug 2007 13:01:50 +0200 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 Aug 2007 13:01:50 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-hardware@freebsd.org From: Ivan Voras Date: Thu, 30 Aug 2007 13:01:21 +0200 Lines: 45 Message-ID: References: <20070829174236.6c33ccfc@n2.lands.raad> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-ripemd160; protocol="application/pgp-signature"; boundary="------------enigEC0662AB49069F6066503373" X-Complaints-To: usenet@sea.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Thunderbird 1.5.0.12 (X11/20060911) In-Reply-To: <20070829174236.6c33ccfc@n2.lands.raad> X-Enigmail-Version: 0.94.4.0 Sender: news Subject: Re: 8GB RAM: PAE or not PAE? X-BeenThere: freebsd-hardware@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: General discussion of FreeBSD hardware List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 Aug 2007 12:08:35 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigEC0662AB49069F6066503373 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable err wrote: > I've a kernel with no modules, and before trying PAE I would know for o= ther people experiences... > In particular I'm interested in the behavior of ciss, bce, em and usb s= tuff, and application like Perl, Ruby, PHP 5, MySQL server, heavy MAWK an= d bzip2 load. If the kernel runs fine, the applications won't notice anything=20 different. I have only one system on PAE, and it works fine, it's a web=20 server and I didn't notice performance problems with it. You'll probably want to try it - save the old kernel, build a PAE=20 kernel, and run it. I think USB is disabled for PAE by default but I=20 didn't encounter problems with it when I enabled it. AFAIK, if a driver=20 is known to work in 64-bit mode, it should also work under PAE. > Also, if I boot a PAE kernel, in order to have all my RAM available, I = have to set the hw.physmem variable to 8G ? No, the kernel will detect and use the extra memory. Each single process = is still limited to 4 GB, of course. --------------enigEC0662AB49069F6066503373 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFG1qONldnAQVacBcgRA0GUAKCLqxQDML97OetKVnCithxwy95vWACg5wQn 7ggUkBuXevPgs5/NGlzpB+U= =+Y6U -----END PGP SIGNATURE----- --------------enigEC0662AB49069F6066503373--