Date: Thu, 30 Aug 2007 13:01:21 +0200 From: Ivan Voras <ivoras@fer.hr> To: freebsd-hardware@freebsd.org Subject: Re: 8GB RAM: PAE or not PAE? Message-ID: <fb682d$rpa$1@sea.gmane.org> In-Reply-To: <20070829174236.6c33ccfc@n2.lands.raad> References: <20070829174236.6c33ccfc@n2.lands.raad>
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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--
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