Re: [hatari-devel] WinUAE CPU core CPU/FPU/DSP performance according to Centurbo benchmark

[Douglas Little <doug694@xxxxxxxxxxxxxx>]

Memory refresh cycles does make sense - yes. Probably that is why the loss is not synchronous with any particular CPU activity - and still occurs with the Videl disabled.

D

On 2 January 2015 at 22:16, Konador, Cyprian <cyprian.konador@xxxxxx> wrote:

> From: Douglas Little
> Sent: 2 January 2015 21:27
>
> (It seems there are still other mechanisms stealing some cycles or causing bus slots to get missed because the resulting timings are cycle-fractional - but I guess those causes are more likely to be constants. The timings always yield integers with Hatari)
 
What about memory refresh cycles? I have no good example, but e.g. in Amiga memory refresh cycles steal  4 memory slots per scanline:
http://amigadev.elowar.com/read/ADCD_2.1/Hardware_Manual_guide/node02D4.gif