PCB editor performance at certain zoom levels

At this zoom level KiCad 8.0.8 (Win11) runs perfectly smooth:


image

However, once I start zooming in the performance degrades a lot, like 10fps max:


image

Can someone confirm this? Or is this just my harware config? I’m not sure if this is report-worthy on gitlab.

If you can attach the project on GitLab, that would be useful, with your hardware configuration info.

You can also try disabling netname updates in settings.

Disabling net names fixes the performance issues

I’ve tested it on a PC with marginally better specs (nVidia RTX A2000 vs my AMD RX580).

The nVidea GPU only has 30% more performance in theory. Not sure why it performs so much better with KiCad. Is AMD known to have problems with openGL? Or is it due to the nVidia being a Quadro?

What’s your CPU+GPU configurations?

i7 8700
Radeon RX580

The CPU usage is pretty low on all cores though, only the GPU usage is ~95%

And what’s the CPU on the “nVidia RTX A2000” PC?

an i7 from the 11th gen, I can later check the exact model number if you need it

There’s been similar reports when using AMD CPU + Intel ARC GPU and AMD CPU + AMD GPU.
I think it’s worth contacting AMD about this issue.

See:

Hm, at home I have an ancient GPU (GTX 970) with a 12 core Ryzen and it runs perfectly fine. The issue seems to be the AMD GPU. Since this is at work, I’ll probably just get a new GPU.

If I can provide anything that helps you to understand the issue, I’m happy to help.

I don’t develop the drivers though, so it’s best to provide all the info to AMD.

1 Like

I googled a bit and it seems to be a “known thing” since at least 10 years. I don’t think AMD will bother doing anything here

Maybe they’ll reconsider if there’s enough reports.