Re: [Freedos-user] FreeDOS is slow in Raspberry 4

[Ralf Q. <fre...@gm...>]

On 3/18/2020 10:02 AM, Swap Jim via Freedos-user wrote:
>
> And in the meantime I'll try Fedora ARM, just in case it matters on 
> the RPi4. 
FAIK, Rasbian is the best supported distro on the RPi4B+ (hardware 
wise). And beside that Raspberry.org itself otherwise only promotes 
Ubuntu. Fedora/Pidora was dropped at least a couple of years ago, so I 
am not sure that you will be able to yield any better results using an 
ARM based Fedora.

I still think that the problem is that QEMU doesn't take into account 
the new capabilities of the 4B+ over the 3B+, not only CPU wise, but 
also video (4K dual screen vs 1080p single), USB (3.0 vs 2.0) and 
networking (true Gigabit Ethernet vs Gigiabit over USB 2.0, limited to 
300MBit/sec), and defaults (at least for the video part, maybe) to a 
lower performing generic "fallback" mode.

Ralf


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