Date: Thu, 15 Mar 2007 02:37:25 +0100 (CET) From: "Martin Tournoij" <carpetsmoker@xs4all.nl> To: "Gary Kline" <kline@tao.thought.org> Cc: FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: Optimizationn questions? Message-ID: <7174.82.93.23.199.1173922645.squirrel@webmail.xs4all.nl> In-Reply-To: <20070315011651.GA1524@thought.org> References: <20070315011651.GA1524@thought.org>
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On Thu, March 15, 2007 02:16, Gary Kline wrote: > > Two quick one for kernel and/or compiler wizards: first, is > a 400Mz processor considered a 586 (for my KERNELCONF file)? To check: dmesg | grep CPU Two examples (first one is a i686 and second one a i586) CPU: Intel Celeron (902.05-MHz 686-class CPU) CPU: AMD-K6(tm) 3D processor (300.68-MHz 586-class CPU) > Second, is it safe to do a buildworld with -O3? If there are > stability concerns, I'll go with the default when I rebuild my > 6.2 systems. from /usr/share/examples/etc/make.conf : # CFLAGS controls the compiler settings used when compiling C code. # Note that optimization settings other than -O and -O2 are not recommended # or supported for compiling the world or the kernel - please revert any # nonstandard optimization settings to "-O" or -O2 before submitting bug # reports without patches to the developers.
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