Date: Thu, 27 Feb 2003 16:02:21 -0500 (EST) From: Andre Guibert de Bruet <andy@siliconlandmark.com> To: Nuno Teixeira <nunotex@aeiou.pt> Cc: freebsd-current@FreeBSD.ORG Subject: Re: -O2 considered harmful Message-ID: <20030227155126.O91528@alpha.siliconlandmark.com> In-Reply-To: <20030227191739.GA607@gw.tex.bogus> References: <20030227025155.61529.qmail@web40310.mail.yahoo.com> <20030227191739.GA607@gw.tex.bogus>
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On Thu, 27 Feb 2003, Nuno Teixeira wrote: > On Wed, Feb 26, 2003 at 06:51:55PM -0800, Rhett Monteg Hollander wrote: > > I understand it. Anyway, there is known problems by using -mmmx or > -m3dnow on builworld/buildkernel? Well, I used allways march=pentiumpro > on stable and now pentium2 on current without any problem. I've been using -march=athlon-xp -O2 -mmmx -m3dnow and -msse on my desktop for close to a month without any noticeable quirks. I rebuild world twice daily and kernel every other day... > I use some applications like grip, lame, mplayer, etc. Maybe I get some > extra performance running this apps. With -mmmx, -m3dnow or -msse, you're going to get a noticeable improvement, especially with lame and mplayer. I recommend compiling programs that use sound or graphics with high optimization cflags and keeping moderately conservative options for the base system and kernel. Regards, > Andre Guibert de Bruet | Enterprise Software Consultant > > Silicon Landmark, LLC. | http://siliconlandmark.com/ > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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