Date: Sun, 9 Oct 2005 01:10:34 -0400 From: Kris Kennaway <kris@obsecurity.org> To: ray@redshift.com Cc: freebsd-amd64@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: /etc/make.conf Message-ID: <20051009051034.GB93028@xor.obsecurity.org> In-Reply-To: <3.0.1.32.20051008220300.00a74ba8@pop.redshift.com> References: <3.0.1.32.20051008215252.00a74ba8@pop.redshift.com> <3.0.1.32.20051008202606.00a74ba8@pop.redshift.com> <3.0.1.32.20051008202606.00a74ba8@pop.redshift.com> <3.0.1.32.20051008215252.00a74ba8@pop.redshift.com> <3.0.1.32.20051008220300.00a74ba8@pop.redshift.com>
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--OwLcNYc0lM97+oe1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, Oct 08, 2005 at 10:03:00PM -0700, ray@redshift.com wrote: > I've been running those flags for years - if you would like to supply some logic > as to why they won't work on the AMD platform, then maybe that would help. If > your advice is just "don't do that, it's bad", then doesn't help much. -O2 has > always worked fine for our production servers. What flag specifically are you > nervous about? -funroll-loops is kind of stupid to use globally. Chances are it's hurting your performance more than it's helping. -O2 was also unsafe prior to the 5.x branch, but it should be OK now post-5.x (where it's the default). Kris --OwLcNYc0lM97+oe1 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDSKZKWry0BWjoQKURApo+AKCFQTYNDtxcCyCpjnG1Mz+gxStsPACfcuop zib9ZSEZCMEpQXXxm2AjJj0= =7K4X -----END PGP SIGNATURE----- --OwLcNYc0lM97+oe1--
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