Re: [hatari-devel] Show FPS in statusbar?

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 01/04/2018 12:06 PM, Christer Solskogen wrote:
> On Thu, Jan 4, 2018 at 10:56 AM, Nicolas Pomarède <npomarede@xxxxxxxxxxxx>
> wrote:
> Then I'm afraid we don't talk about the same thing. What you want is to
> > measure the performance of Hatari itself, ie how many time takes Hatari to
> > render a frame (I saw your discusson on AF about R-PI)
>
> Correct.
>
>
> > This is a different issue ; basically, if Hatari is too slow to render 50
> > FPS, some frames could be skipped.
> > To see this, you might want to enable frame skipping in Hatari, which will
> > print in the status bar how many frames were skipped (due to too slow
> > emulation).
>
> I know. But I want to know how many frames are skipped. Not that some
> frames are skipped.

It already *does* show how many frames were skipped, up until
the maximum frame skip you have specified (5 by default).

If you set "--fast-forward on", you'll see the maximum frame
skip limit being used.

If it's showing value of 1, either only every other frame needs
to be skipped, or you've specified 1 as maximum frame skip.


> > Eero might have more insight on this and how to interpret it (IIRC he
> > worked on the frame skipping code)

It's documented in the Hatari manual:

https://hg.tuxfamily.org/mercurialroot/hatari/hatari/raw-file/tip/doc/manual.html#Measuring_the_performance


	- Eero