> > 4GB TLB entry size ???
> I assume you mean 4MB TLB entry size or did I fall
> into a coma for 10 years
That wasn't a typo ... Itanium2 supports page sizes up
to 4 Gigabytes. Databases (well, Oracle for sure) want
to use those huge TLB entries to map their multi-gigabyte
shared memory areas.
-Tony
On Tuesday 06 August 2002 04:38 pm, Luck, Tony wrote:
> > > 4GB TLB entry size ???
> >
> > I assume you mean 4MB TLB entry size or did I fall
> > into a coma for 10 years
>
> That wasn't a typo ... Itanium2 supports page sizes up
> to 4 Gigabytes. Databases (well, Oracle for sure) want
> to use those huge TLB entries to map their multi-gigabyte
> shared memory areas.
>
> -Tony
Whooooowww... Power4 I believe opted out at 16MB.
So the story about sleeping beauty is true :-).
Wouldn't want to manage the 8-32 physical pages of memory through the VM.
Paging not an option, file access irrelevant.
In that case I agree that it should be handled by a special purpose
extension like Seth's patch to cover a 4GB page.
Upto 4MB or so I still believe going the other way is proper.
More later... thanks for the info.
--
-- Hubertus Franke ([email protected])