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<H1>[Mageia-dev] i686 must be Pentium II ?</H1>
<B>Filipe Rosset</B>
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TITLE="[Mageia-dev] i686 must be Pentium II ?">rosset.filipe at gmail.com
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<I>Sat Sep 25 17:17:37 CEST 2010</I>
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<PRE>On 09/25/2010 09:16 AM, R James wrote:
><i> On Sat, Sep 25, 2010 at 4:59 AM, Patrice BRUNELLE
</I>><i> <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">patrice.brunelle at free.fr</A>> wrote:
</I>>><i> Le vendredi 24 septembre 2010 à 15:51 -0500, R James a écrit :
</I>>>><i>
</I>>>><i> Technically, the i686 started with the Pentium Pro. (Remember that? :o)
</I>>>><i>
</I>>>><i> <A HREF="http://en.wikipedia.org/wiki/P6_(microarchitecture">http://en.wikipedia.org/wiki/P6_(microarchitecture</A>)
</I>>><i>
</I>>><i> Yes I remember that. And ?
</I>>><i>
</I>><i> Its just a precision to the subject title. i686 began with the
</I>><i> Pentium Pro, not Pentium II.
</I>><i>
</I>><i> I'm not sure what performance benefits can be gained from compiling
</I>><i> for i686 vs i586. Probably not much except for multimedia
</I>><i> applications which most of those can auto-detect the CPU's
</I>><i> capabilities anyways.
</I>><i>
</I>
Just for reference, the Fedora Project was changed from i586 to i686:
<A HREF="https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild#Driving_Features">https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild#Driving_Features</A>
<A HREF="https://fedoraproject.org/wiki/Features/F12X86Support">https://fedoraproject.org/wiki/Features/F12X86Support</A>
<A HREF="http://www.mail-archive.com/fedora-devel-list@redhat.com/msg02583.html">http://www.mail-archive.com/fedora-devel-list@redhat.com/msg02583.html</A>
<A HREF="http://www.mail-archive.com/fedora-devel-list@redhat.com/msg02889.html">http://www.mail-archive.com/fedora-devel-list@redhat.com/msg02889.html</A>
(with 'benchmarks')
<A HREF="http://fedoraproject.org/wiki/FWN/Issue162#Fedora_11_Will_Support_i586_Instruction_Set">http://fedoraproject.org/wiki/FWN/Issue162#Fedora_11_Will_Support_i586_Instruction_Set</A>
><i> There are still people running AMD K6's (ie: me) which is also i586.
</I>><i> If we compile for i686 and newer, they won't even be able to boot the
</I>><i> installer.
</I>><i>
</I>><i> Therefore, I agree with the decision to keep i586 support.
</I>
I agree too.
--
Filipe
Rio Grande do Sul, Brazil
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