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Re: gcc 3.5 integration branch proposal
Jan Hubicka wrote:
>
> > Jan Hubicka wrote:
> >
> > >This is precisely what I intend to do now, yes.
> > >I re-did your experiment on my notebook (Centrino, 256MB ram)
> >
> > It's useful to give the exact configuration, in particular the processor
> > speed. Note that by the way Centrino does NOT designate a processor, but
> > rather a system including specific wifi support, though it implies the
> > Pentium-M. That's a very different core than the Pentium-4 or Pentium-4M
> > so it is useful to repeat such measurements on the latter machines.
>
> My CPU is Pentium-M 1.3Mhz with speedstep disabled, tought it seems to
> me that only interesting about it is particular CPU core that is mostly
> Pentium-3 and memory/CPU speed ratio that I unforutnately don't know
> offhand.
>
I've started work on tuning gcc to Pentium-M. It is not a exactly
Pentium 3 core. Although it has constraints on insn issue analogous to
Pentium-pro. Also it looks like pentium-m has a multiplier from
pentium-3 too. Because the frequency processor is quite different from
pentium4, the memory/CPU speed ratio is also different.
Vlad