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03-11-2003 07:51 AM
03-11-2003 07:51 AM
i386 vs i686
I compiled Linux 2.4.18 with the P4 option enabled. However when I do a uname -a I get still get i386 in the output ?
Am I interpreting the output wrong ?
What advantages do I get by compiliing specifically for P4 over a P2 or a P3 ?
Am I interpreting the output wrong ?
What advantages do I get by compiliing specifically for P4 over a P2 or a P3 ?
2 REPLIES 2
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03-11-2003 12:05 PM
03-11-2003 12:05 PM
Re: i386 vs i686
Hmmm. You should get i686 in there somewhere. Mine looks like
Linux proteomebook.cybersym.com 2.4.20 #2 Sun Feb 2 19:44:07 MST 2003 i686 i686
i386 GNU/Linux
for a P3 Celeron. If you choose P2 or P3, then the kernel doesn't take advantage of any P4 processor features.
Bruce
Linux proteomebook.cybersym.com 2.4.20 #2 Sun Feb 2 19:44:07 MST 2003 i686 i686
i386 GNU/Linux
for a P3 Celeron. If you choose P2 or P3, then the kernel doesn't take advantage of any P4 processor features.
Bruce
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03-11-2003 03:17 PM
03-11-2003 03:17 PM
Re: i386 vs i686
Ok, so lets see.. at this question in 'make config':
Processor family (386, 486, 586/K5/5x86/6x86/6x86MX, Pentium-Classic, Pentium-MM
X, Pentium-Pro/Celeron/Pentium-II, Pentium-III/Celeron(Coppermine), Pentium-4, K
6/K6-II/K6-III, Athlon/Duron/K7, Elan, Crusoe, Winchip-C6, Winchip-2, Winchip-2A
/Winchip-3, CyrixIII/VIA-C3/VIA-C5) [386]
You answered "Pentium-4", and in the '/usr/src/linux-2.4/.config' file, you've got "CONFIG_PENTIUM4=y", yes?
If that's the case, and you then went through, and executed 'make bzImage', 'make modules' and 'make modules_install', manually copied the 'vmlinuz' to the correct place, made the correct entries in the /etc/grup.conf (or lilo.conf), and rebooted, then it should be showing 'i686' as Bruce said.
If you didn't do all of that, tell us what you have done so we can guide you through the steps you need to correct the issue.
Processor family (386, 486, 586/K5/5x86/6x86/6x86MX, Pentium-Classic, Pentium-MM
X, Pentium-Pro/Celeron/Pentium-II, Pentium-III/Celeron(Coppermine), Pentium-4, K
6/K6-II/K6-III, Athlon/Duron/K7, Elan, Crusoe, Winchip-C6, Winchip-2, Winchip-2A
/Winchip-3, CyrixIII/VIA-C3/VIA-C5) [386]
You answered "Pentium-4", and in the '/usr/src/linux-2.4/.config' file, you've got "CONFIG_PENTIUM4=y", yes?
If that's the case, and you then went through, and executed 'make bzImage', 'make modules' and 'make modules_install', manually copied the 'vmlinuz' to the correct place, made the correct entries in the /etc/grup.conf (or lilo.conf), and rebooted, then it should be showing 'i686' as Bruce said.
If you didn't do all of that, tell us what you have done so we can guide you through the steps you need to correct the issue.
One long-haired git at your service...
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