-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 maxim wexler wrote: > > For an 900A w/intel Atom? > > This is what I get: > > Warning: Your compiler supports the -march=native option which you > may prefer
If you use this, then you 1) must be using >=sys-devel/gcc-4.2, and 2) will always have the "best" optimization for your machine, so far as the version of gcc you are using understands. > Warning: Newer versions of GCC better support your CPU with -march=atom In order to use this, you will need gcc-4.5, which hasn't been released yet. > -march=core2 -mtune=pentium -mfpmath=sse. This is the recommendation that the script actually made - it suggests to use all of these. > Now I'm confused. It says *my* compiler supports -march=native. Then > it says "Newer versions". Isn't v4.3.2 new? It was from a new pkg about > a month ago. Is it giving me a choice here? Can I really declare two > -march variables? What about mtune and mfpath, are they meant to be > "instead of" or "in addition to"? What goes in the kernel config? What > in /etc/paludis/bashrc? The newest version of gcc out right now is 4.4.0 (currently in package.mask). I would suggest setting CFLAGS="-O2 -march=native -pipe" and CXXFLAGS="-O2 -march=native -pipe" in /etc/paludis/bashrc (assuming that that is the proper location for those variables). - -- ABCD -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkoXGvUACgkQOypDUo0oQOoDGgCfQdRS+hQtTVKIITl2UvExt5NH 6g4AoJvL7fC2+Gr2KlYIS3WqMnyeJ9qE =1r28 -----END PGP SIGNATURE-----
