LSB1.1: /proc/cpuinfo

Alan Cox alan at
Fri Jan 4 09:07:11 PST 2002

> > What do apps actually care about
> > 	-	MMX
> > 	-	Athlon MMX2
> > 	-	SSE
> > 	-	SSE2
> Image manipulation programs need a way to determine the most efficient
> algorithm/instructions to use.

Which is down to MMX, MMX2, SSE, SSE2. Take a look at real existing apps
like mplayer, mp1e and xine.

> Probably not as much here, except as how this info may be used to identify
> erratta on a feature that is important to the program.

The x86 CPU errata are kernel handled so Im not sure that is actually an

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