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- From: "Chris January" <chris at atomice dot net>
- To: "Cygwin at Cygwin dot Com" <cygwin at cygwin dot com>
- Date: Sun, 11 May 2003 10:22:39 +0100
- Subject: RE: /proc/cpuinfo
> > > The interesting field is flags, which we use in our configure script
> > > to check for processor capabilities and later optimize for
> the ones we
> > > find. Cygwin detects/displays less flags than Linux:
> > >
> > > flags : fpu vme de pse tsc msr mce cx8 pge mmx
> > > flags : fpu vme de pse tsc msr mce cx8 pge mmx syscall
> > > 3dnowext 3dnow k6_mtrr
> > >
> > > This is a pity as I now loose 3dnow and mtrr optimizations without
> > > manual tweaking.
> > >
> > > I know that /proc/cpuinfo is very new on Cygwin. Is the lack of some
> > > flags a bug, or is this just implemented in a different way. Any
> > > chance of supporting those flags in the future?
> > >
> > > If somebody decides to extends /proc/cpuinfo that would be
> > > tremendously appreciated. I'm not expecting anything, of
> course, just
> > > hoping.
> > I used the Intel list of flags, but the list is slightly
> different on AMD
> > (e.g. 3dnow). If you can find and send me a list of the cpuid
> features flags
> > for AMD processors I'll add this in.
> Here is a link I was told about:
> and the other one posted before for easy reference:
> Please let me know if you need more information, I'll do my best to
> provide it to you. If you should get around to implementing something
> I would very much appreciate if you could drop me a short note and I
> will gladly help you with testing.
Thank you for the links. I'll try to implement this in the next couple of
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