Mail Archives: pgcc/1999/02/26/08:38:36
> Have you made a benchmark? (I haven't). Scheduling is often unintuitive.
>
> It might indeed be the case that gcc's scheduling constants are suboptimal
> for some cases. One of the problms is that the normal list scheduler
> isn't up to scheduling for superscalar architectures (pentiumpro), while
> the scheduling parameters aren't tuned for the haifa scheduler.
Just curious:
I still hear, that haifa scheduler is ready for superscalar CPUs and
normal not.
Why? The definitions are same, only haifa can do scheduling more agresivly.
Or I am wrong?
(except the MD_SCHED hacks. Is that the superscalar feature?)
Honza
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