P2D and P3D causes gpu to go to 100%

prince_polka

It does this even with an empty sketch.
Should I be worried or not?

Lord_of_the_Galaxy

Yes, you should be worried. I am. I have already noticed that whenever I use P2D or P3D I get a huge performance hit.

jeremydouglass

Both P2D and P3D are OpenGL render modes and attempt to access GPU resources -- this behavior will be hardware-dependent. Overview on render modes:

• https://processing.org:8443/tutorials/rendering/
• https://processing.org/tutorials/p3d/
• https://processing.org/reference/size_.html

I just tested an empty sketch on a 3.1 GHz Intel Core i5 with an Intel Iris Graphics 550 1536 MB and I didn't see a spike in GPU utilization.

void setup(){
  size(400,400,P3D);
}
void draw(){}

Lord_of_the_Galaxy

Maybe because you're using integrated graphics? Or it could simply be that Processing does this only on AMD CPU based computers? Mine is AMD CPU and GPU, and I think it's same for @prince_polka.

prince_polka

@Lord_of_the_Galaxy V-sync "always off" in the driver settings seems to fix the problem for me, any other setting and the gpu spikes

Lord_of_the_Galaxy

My laptop screen probably doesn't even support V-SYNC, so I'm not entirely sure it would help me.

prince_polka

@Lord_of_the_Galaxy,

My laptop screen probably doesn't even support V-SYNC

Your laptop screen almost definitively supports V-sync
The question is whether you have an option to disable it in your drivers,
(can't find an option to turn it off in processing itself)

so I'm not entirely sure it would help me.

not sure it'll help either, but it's worth a try right?

Lord_of_the_Galaxy

@prince_polka Here are my laptop specs -

Processor - AMD A8-6410
Graphics card - Radeon R5 M430
Hard disk - 1TB, forgot particulars, 5400rpm I think
RAM - 8GB DDR3 1866MHz
Windows 8.1

prince_polka

@Lord_of_the_Galaxy

gives this link
support.amd.com/en-us/download/mobile?os=Windows%208.1%20-%2064

When driver is installed go to
AMD Radeon Settings -> Gaming -> Global Settings -> Wait for Vertical Refresh -> Always off

Also there should be a way to turn this off in whatever driver you currently have, just don't know where the setting is.

Lord_of_the_Galaxy

@prince_polka Oh. I think I might have seen this sometime ago. Don't remember where. A bit of searching will do the job. I'll tell you when I can get back to my laptop and check. Thanks!