Gentoo Archives: gentoo-user

From: Justin <justin@×××××××××.net>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] switching CPU's -- what strange things do I need?
Date: Fri, 25 Jan 2008 17:48:53
Message-Id: 479A20FF.3050000@j-schmitz.net
In Reply to: Re: [gentoo-user] switching CPU's -- what strange things do I need? by John covici
1 Thats correct and be happy, because if so, you have to start from a
2 amd64 stage and not from x86 one.
3
4 John covici schrieb:
5 > on Friday 01/25/2008 Andrey Falko(ma3oxuct@×××××.com) wrote
6 > > On Jan 25, 2008 10:00 AM, John covici <covici@××××××××××.com> wrote:
7 > >
8 > > > Hi folks. I right now have my CCFLAGS set to CFLAGS="-O2
9 > > > -mtune=athlon-xp -pipe" -- now I am getting one of those new Intel
10 > > > e8400 CPU's and so I have two questions.
11 > > >
12 > > > What should I change my CCFLAGS to -- and do I have to recompile the
13 > > > whole system after this is done or what?
14 > >
15 > >
16 > > I've done this before. I moved from an old Intel 3.06 Ghz to a new Athlon64
17 > > 4600+. I did *not* change flags before the move from system to system. After
18 > > the move, however, I changed my -march flag (in your case -mtune, which is
19 > > equivalent) and recompiled everything to have the change take effect.
20 > >
21 > > In your case, move the system from machine to machine, then change your
22 > > -mtune to: -mtune=nocona (see
23 > > http://gcc.gnu.org/onlinedocs/gcc-4.2.2/gcc/i386-and-x86_002d64-Options.html#i386-and-x86_002d64-Options)
24 > > . When you are done with that recompile everything: emerge -e world
25 > >
26 > Thanks all -- I have a 32-bit profile, so I guess I will not be able
27 > to use ncona -- is this correct?
28 >
29 >
30 >
31 --
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