Re: [hatari-devel] MMU impact on emulated perf?

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 3.10.2021 17.26, Christian Zietz wrote:
> Eero Tamminen schrieb:
>
> > According to Zamuel's latest post, there's something odd in Hatari CACR
> > handling:
> > https://www.atari-forum.com/viewtopic.php?p=423066#p423066
>
> Not that I want to investigate, but if I were to do so, I would ask him
> for his program that he constantly keeps referring to; the one that
> gives so and so many FPS. Otherwise, it's just guesswork, I'm afraid. My
> investigation with CoreMark show that Hatari's Falcon emulation is not
> fully accurate, but this doesn't have to have the same cause as for his
> program.

Yeah, Hatari missing Videl penalty does not really
explain 4x speed difference between real Falcon
and Hatari emulated one.

I could buy <2x difference, but not 4x.

FYI for others... This thread has his cache
setup details:
https://www.atari-forum.com/viewtopic.php?f=27&t=41002&sid=fcfc38b2123c33e8fc4cb35ec6ddca2c


	- Eero