Re: [Gimp-developer] Gimp 2.8 blend time

[gfxuser <gfx user online de>]

Hi,
> So, I've recently switched from gimp 2.6 to gimp 2.8, and I found that the time taken to draw gradients is far longer in 2.8 than in 2.6
>
> To test, I made a blank black canvas at 1024px, then drew a radial gradient from center to edge.  2.6 drew it in under a second.  2.8 took 8.7 seconds to complete.
>
> Is this something that others have noticed?
Yes, I can reproduce it with the 2.8 builds for Mac and Windows. The 
slowdown does not only affect the blend tool. This seems to be related 
with color management. In the Windows version you can speedup the blend 
tool among some other things by disabling the color management filter in 
View/Display filters.... This does a speedup for me, but it's only a 
temporary solution, as this only affects the currently open picture and 
only for this session. Also see bug #645345 in Bugzilla for a similar 
problem.
It's the same problem with the Mac version. 2.8 is slower than 2.6, but 
unfortunately the View/Display filters... trick doesn't work there.

> Is it a result of the move to GEGL?
I think so.
> Will it be fixed?
I hope so. This bug tempers the GIMP 2.8 honeymoon and I'm already 
thinking of staying with 2.6 for production or further using PS.

Or, the other way around: never switch to x.0 versions... ;-)

Best regards,

grafxuser