[PATCH 3/3] gears: add a warning about refresh rate limitation

[Scott Moreau]

>
> Ok, that seems sufficient, thanks.
>
> For a bonus, could you still explain what this FPS count actually
> measures?
>
> Something like this: it measures how often a very simple GL program
> can show new content. This is limited by the monitors' refresh
> rates, system load, compositor performance, and finally the
> program's own performance.
>
> "show new content" is a hint, that it does not measure rendering
> speed nor "Wayland speed".
>
> I wrote monitors in plural, because having the gears surface on
> multiple monitors simultaneously might limit the FPS to the sum of
> the individual refresh rates, depending a bit. I'm not sure how
> Weston behaves currently.
>
> Heh, that would be a nice headline: "Adding more monitors in clone
> mode speeds up Wayland!" ;-)
>
>
> Thanks,
> pq
>
>
This message is indeed very important as many users get confused very
easily, thinking that the popular 'gears' implementation is a direct
measure of their graphics drivers and/or system/platform performance. This
is clearly not the case and the message should reflect that, while
explaining what these numbers actually mean.


Scott
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