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Varean Guru
Joined: 03 Jul 2005 Posts: 436 Location: California, USA
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Posted: Fri Aug 11, 2006 7:22 pm Post subject: Quick optimization question |
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Im installing Gentoo again(last attempt failed) and this time, I want a generally stable build. However, I would like to know if the -03 option(instead of O2) is stable or relatively stable, or in fact much better than O2. I hear that does a decent job of speeding up the system. _________________ Registered Linux User #387568
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Deathwing00 Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Fri Aug 11, 2006 7:25 pm Post subject: |
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You shouldn't have any problems with it. I'm intrigued about your failures though |
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Varean Guru
Joined: 03 Jul 2005 Posts: 436 Location: California, USA
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Posted: Fri Aug 11, 2006 7:27 pm Post subject: |
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Deathwing00 wrote: | You shouldn't have any problems with it. I'm intrigued about your failures though |
Well, it didn't exactly fail. It wasnt the OS' fault, but rather mine. Some dumb mistakes and rushing through the install made it a nightmare to clean it up. Im taking my time with this one to make sure I get everything right.
EDIT: Also, I am using an Athlon64 processor but I want to make a 32bit system(x86) is it safe to use -march=athlon-xp? _________________ Registered Linux User #387568
Last edited by Varean on Fri Aug 11, 2006 7:36 pm; edited 1 time in total |
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Deathwing00 Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Fri Aug 11, 2006 7:35 pm Post subject: |
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Good luck with it then |
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Penguin of Wonder Apprentice
Joined: 17 Jan 2006 Posts: 280 Location: West Virginia
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Posted: Fri Aug 11, 2006 10:04 pm Post subject: |
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Varean wrote: | i'm also using an Athlon64 processor but I want to make a 32bit system(x86) is it safe to use -march=athlon-xp? |
That is what i would recomend using. _________________ My Linux Blog
AMD64 3700+
2G DDR 3200 Ram
320G HDD |
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Deathwing00 Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Fri Aug 11, 2006 10:31 pm Post subject: |
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Using -march=k8 will not give you any troubles at all either. Check with the gcc manual for mroe detailed information. |
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jmbsvicetto Moderator
Joined: 27 Apr 2005 Posts: 4735 Location: Angra do Heroísmo (PT)
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Posted: Fri Aug 11, 2006 10:32 pm Post subject: |
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Varean,
if you want, you can use the -march=athlon64 in the 32-bits environment. In the 32-bits environment, that will activate the support for all features, except the 64-bits extensions. Take a look at man gcc:
Code: | k8, opteron, athlon64, athlon-fx
AMD K8 core based CPUs with x86-64 instruction set support. (This supersets MMX, SSE,
SSE2, 3dNOW!, enhanced 3dNOW! and 64-bit instruction set extensions.) |
_________________ Jorge.
Your twisted, but hopefully friendly daemon.
AMD64 / x86 / Sparc Gentoo
Help answer || emwrap.sh
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