On Wed, 7 Jan 2004 15:55:36 +0100 Thorsten Kampe <[EMAIL PROTECTED]> wrote:
> Is it sensible to compile my kernel with the CFLAGS[1] of my > /etc/make.conf that have proven to be stable?! If I'm not mistaken, the kernel does not honor the CFLAGS-Var. It uses its own compile-flags. > I never thought of that but it could be an performance gain like for > any other portage package, but maybe I am missing something > important...? > [1] export CFLAGS="-O3 -march=pentium3 -pipe -fomit-frame-pointer" It depends on your gcc-version (and is sort of religious), but all my tests with gcc-3.2.x and gcc-3.3-x have proven, that the performance of -O3 is inferiour to -O2. I have not tested on my pentium3 yet, but on a pentium-mmx, two pentium-2 and an Athlon-XP - all with the same results. -- Dennis Freise <[EMAIL PROTECTED]> GnuPG key fingerprint: 2DE8 CCEF 6E20 11D4 3B27 21EC B0BA 1749 D2C8 38ED Get my public key at : http://www.final-frontier.ath.cx/gpg_public_key.txt
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