Date: Sat, 08 Feb 2003 22:01:48 -0600 (CST) From: Conrad Sabatier <conrads@cox.net> To: Ray Kohler <ataraxia@cox.net> Cc: freebsd-current@FreeBSD.ORG Subject: Re: Compiling with high optimization? Message-ID: <XFMail.20030208220148.conrads@cox.net> In-Reply-To: <20030208173756.GA56030@arkadia.nv.cox.net>
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On 08-Feb-2003 Ray Kohler wrote: > Has anyone tried building world/kernel with high optimizations (-O2, > -O3) recently? What breaks? (Booby prize to whoever says "common sense" > ;) I last tried it quite a few months ago and the resolver died on me, > don't know what else. I'm not really thinking of running like that, but > I am curious about others' experiences. Call me a fool, but I've been using this for quite some time now, in both -stable (well, with slight modifications) and -current: CPUTYPE?=k7 CFLAGS= -O2 -pipe -mmmx -m3dnow -fforce-mem -fforce-addr -fstrength-reduce \ -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -frerun-cse-after-loop \ -fexpensive-optimizations -fschedule-insns2 COPTFLAGS= -O2 -pipe -mmmx -m3dnow -fforce-mem -fforce-addr -fstrength-reduce \ -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -frerun-cse-after-loop \ -fexpensive-optimizations -fschedule-insns2 My -current box seems to be remarkably stable (and fast!). Guess I must be living right. :-) -- Conrad Sabatier <conrads@cox.net> - "In Unix veritas" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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