On 10/21/06, Andreas Raab <andreas.raab at gmx.de> wrote:
> Pavel Krivanek wrote:
> > the reason will be in the gradient background of windows. The
> > background is processed during every update now but the previous
> > versions were more optimized.
>
> Good theory, but I don't think this is the problem. When I turn off both
> TTFs and gradients in 3.9 I still get something like here:
>
>         Run 1:  811 msecs
>         Run 2: 1191 msecs
>         Run 3: 1483 msecs
>         Run 4: 1867 msecs
>

I was talking about experiments with the Skylark theme without TTF.
There's no slowdown there, results on my laptop are

444
435
459
456
465

Skylark theme uses old-time approach to window rendering...

> It's a little better but not significantly (and it still feels way too
> slow). BTW, if anyone wants to repeat the experiments, the changes that
> I did for this test were:
> * setting the window title font to a non-TTF (Accuny 14 in my case)
> * change SystemWindow>>gradientWithColor: to return just the color
> So I'm still at a loss what has changed to introduce that slowdown.
>
> Hm ... let me try something. Oh, yes, now *that* would explain it. Turn
> on #debugShowDamage in 3.9 and watch how it redraws the entire screen
> almost every time you click anywhere in a browser. Ouch. No idea why
> that is but it sure explains the effect.
>
> Cheers,
>    - Andreas
>

-- Pavel