Re: [hatari-devel] cfg (8 vs 16 Mhz)

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 9.12.2022 11.45, Christian Zietz wrote:
> Nicolas Pomarède schrieb:
> > good catch, it's true that most programs that want to go 16 MHz often
> > set cache too
>
> Yes, because 16 MHz without cache doesn't bring a huge performance benefit.
>
> Looking at the CoreMark results...
> https://github.com/czietz/coremark/wiki/Results
> ... it shows that from 8 MHz to 16 MHz *without* cache you only get a
> boost of about 10%(!), whereas going from 8 MHz to 16 MHz *with* cache
> brings you about +90%.

What kind of cache we're talking about?

I know 030 has only 256 byte icache, and I haven't heard 68000 having 
cache except it being mentioned few times in relation to MegaSTE with no 
details (I though 68000 had just things like instruction pairing).


Nicolas, is it documented anywhere that Hatari does not support 
emulation of that cache control?

At least it's not mentioned in todo.txt...


	- Eero