A lot of people seem to not use "-O3", because it can cause worse performance in some situations. I'm gonna leave it in my "make.conf" till someone (maybe me, if I get some free time) shows that it causes worse performance on average. Because that is really what the flags in "make.conf" should be geared toward. They should be geared toward what gives you the best performance on average (without breaking things).
-Nathan >-----Original Message----- >From: Jason Stubbs > >On Saturday 29 November 2003 05:57, Vano Beridze wrote: >> I installed gentoo from stage 1 (took 1 day) with the following settings >> >> CHOST="i686-pc-linux-gnu" >> CFLAGS="-march=athlon-xp -O3" >> CXXFLAGS="-march=athlon-xp -O3" >> >> On the same machine with RedHat 9 (i386 packages) >> NetBeans 3.5.1(sun jdk 1.4.2_02) runs faster. >> What is the problem? Are my flags set incorrectly? > >The biggest improvement in performance will come by adding >-fomit-frame-pointer to your flags. I would also suggest -O2. -O3 only brings >performance improvements in a few situations and can cause worse performance >in others. -- [EMAIL PROTECTED] mailing list
