* Robert Young (2003-08-06 21:32 +0200)
> "Hemmann, Volker Armin" wrote:
>> On Wednesday 06 August 2003 18:10, Robert Young wrote:
>>> I was told this CPU was an XP by my vendor. Why does it not say in the
>>> model name that it is an XP see cat cpuinfo bellow.
>>>
>>> It is currently running redhat and I would like to install Gentoo on it
>>> but I am wondering which optimization flags I should use?
>>>
>>> I was hoping
>>>
>>>
>>> CHOST="i686-pc-linux-gnu"
>>> CFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
>>> CXXFLAGS="-march=athlon-xp -O3 -pipe -fomit-frame-pointer"
>>>
>>> would be safe and
>>
>> -O2 is safe.
>>
>>>
>>> CFLAGS="-march=athlon-xp -m3dnow -msse -mfpmath=sse -mmmx -O3
>>> -pipe -fforce-addr -fomit-frame-pointer -funroll-loops
>>> -frerun-cse-after-loop
>>> -frerun-loop-opt -falign-functions=4 -maccumulate-outgoing-args
>>> -ffast-math
>>> -fprefetch-loop-arrays"
>>> CXXFLAGS="${CFLAGS}"
>>
>> is simply mad. Read man gcc> http://www.freehackers.org/gentoo/gccflags/flag_gcc3opt.html Oh yes, "simply mad": "Experimental flags", "Ok, you really want to optimize your box to death, even if that means [...] sometimes breaking your box ?", "Eventually, the flags combination that prove stable here will go on the safe flag page" Thorsten -- [EMAIL PROTECTED] mailing list
