LSB1.1: /proc/cpuinfo

Stuart Anderson anderson at
Fri Jan 4 07:10:09 PST 2002

On Fri, 4 Jan 2002, Alan Cox wrote:

> > > we have to choose the i486 feature set as the least common denominator
> > > (ie no MMX, etc).
> >
> > I'm not quite sure that is a bad thing actually.
> Its a very bad thing for large numbers of applications. However for x86 it
> isnt the case that we need to look at /proc. If you follow the AMD and Intel
> guidelines for identifying their processors you will be fine, and cpuid is
> user space.

I did read the app notes pertaining to this, and felt that it was an excessive
burdon on the application considering the kernel had already done the work.


Stuart R. Anderson                               anderson at

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