(In reply to smoki from comment #15)
>  It is not harmless, as lower end machine is (APU) then you even lost sort
> of 20% with these constant non harmless messages on top of already low
> perf.

Of course, I (and probably also you) will do a performance measurement after
Marek's patch is available.

(There is lot of work to be done in Mesa to make it perform generally better
and approach Nvidia Linux performance. Considering the amount of work required
I do not expect it to materialize this year.)