[CentOS-docs] Article on building i586 CentOS-5 kernel

Christopher Chan christopher.chan at bradbury.edu.hk
Mon Jan 11 07:09:11 UTC 2010


Timothy Lee wrote:
>  On 01/11/2010 02:29 PM, Christopher Chan wrote:
>> Wow. There are Pentium machines still running out there?
>> You do know that Pentium optimizations are only for Pentiums and that
>> such binaries could actually run slower on anything Pentium-II/Pentium
>> Pro and above than i386 (actually i486 optimized binaries iirc - must
>> check gcc) optimized binaries due to the architecture differences of the
>> Pentium?
> Got some VIA C3 processors that absolutely refuse to run i686 kernels.  

Yeah, who knows what has been turned on on those i686 kernels.

> They were running on Fedora 7, but that's getting too abandoned for any 
> good.
> 

http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html

Try C3 optimization instead then.


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