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On Tuesday 19 December 2006 13:48, Jakob <jak.gentoo@××××××××××.com> wrote |
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about 'Re: [gentoo-user] CFLAGS Core2Duo': |
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> Thaks for the quick reply. |
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> On http://gentoo-wiki.com/Safe_Cflags they say for 32bit use: |
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> CFLAGS="-march=prescott -O2 -pipe -fomit-frame-pointer" |
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> Is this wat you meant for better -march settings? |
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Specifically, I meant that -march=prescott is probably better |
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than -march=pentium-m. If you use Konqueror, hit <URL: info:/gcc/i386 and |
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x86-64 Options >; or just use your favorite infotext reader to look at the |
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x86(_64) machine specific options, so you are generating code tuned |
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particularly to your processor. |
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|
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> I was confused by the GWN because they didnt say its for 64bit only. |
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|
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Well, a lot of people assume that buying a 64-bit processor means you |
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actually want to use the extra bits (and registers). Of course, it's |
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getting harder and harder to buy a non-64 bit chip. |
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|
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-- |
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"If there's one thing we've established over the years, |
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it's that the vast majority of our users don't have the slightest |
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clue what's best for them in terms of package stability." |
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-- Gentoo Developer Ciaran McCreesh |
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