[hatari-devel] Slow HD boot with the new floppy code

[Nicolas Pomarède]

Le 08/10/2011 11:48, Eero Tamminen a écrit :
> Hi,
>
> On lauantai 08 lokakuu 2011, Miro Kropáček wrote:
>> I've just pulled the current code&  compiled it and I noticed there's a
>> noticable slowdown, especially with "Fast floppy access" disabled.
>
> Btw. I just tried "--fastfdc yes" option with the STNICC demo, and with
> that it's slower than with "--fastfdc no".  It's slower than normal speed
> even when using also fastforward, which seems a bit curious.
>
> I would have expected that demo just not to work/freeze completely...

Yes, I saw that too ; but this demo is very specific as it uses a 
cirecular 64 KB block of memory to load data from the disk, with very 
strict timings. I guess changing too much the FDC speed has this side 
effect.


>
>> As I understand it, the recent changes to the floppy code should make
>> it more precise but I assure you, the booting on Falcon doesn't take
>> that long ;)
>>
>> To be clear, I'm talking about a time between pressing a key to the
>> desktop appearance.
>
> What Falcon specific things work only from floppy / why you would
> use floppy images with the Falcon emulation? :-)

I don't think he wants to use a floppy ; it's that the falcon boots much 
slower on HD if no disk is present in drive A.