Rendering does not use full CPU

[Tobiasz Karoń]

I don't want to go on another rant here, but I've made a whole video about
why Kdenlvie is "not very good" at this point:
https://www.youtube.com/watch?v=ym1brc2OcYQ

Frei0r effects force single-core frame processing. And I used a lot of them.
GPU acceleration is flaky and never did anything more than crashing for me.
But some claim it works for them.

Have you tried Olive? It does all frame processing on the GPU - it's not
"optional" is the basis. It's snappy!

I think Kdenlive would need to replace it's compositing engine with an
OpenGL-based one to get decent speed - but that's no small task.

Granted - I haven't really tested the 19.x branch too much, so thinks might
be better, but I've heard stability suffered a lot - which is to be
expected after a major core rewrite.
It's all growing pains I guess.

I hope Kdenlive's gonna come out of this stronger and better :)

pon., 23 wrz 2019 o 19:29 jdd at dodin.org <jdd at dodin.org> napisał(a):

> Le 23/09/2019 à 19:23, DogFilm a écrit :
> > Rendering a clip does not use 100% of CPU.
> >
> > If I render stuff with ffmpeg directly (nothing to do with kdenlive)
> > ffmpeg uses all cores with 100% cpu load. Kdenlive is about 50% for each
> > core.  So render time could probably be doubled.
> >
> > Yes, "Render Project" dialog was set to "Parallel Processing".
> >
> yes. I don't know the technical under the hood, but kdenlive is
> desperately slow.
>
> avidemux3 is very fast for simple tasks, DaVinci Resolve seems to be
> also very fast, but I don't know it really (and of course it's not open
> source, it's only free like a free beer :-()
>
> jdd
>
> --
> http://dodin.org
>


-- 
- Tobiasz 'unfa' Karoń

www.youtube.com/unfa000
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