Updating a shape takes forever

Hi, a good place to look first would be to see if there is anything wrong with your database. Under Tools there is a database check utility that you can run. There is also a performance adviser in that utility that can give insight into how the performance of this particular board is. Generally speaking in a board file things like lots of net rules can cause bottle necks. 17.2 on win 10 runs pretty good for me though it not as fast as 16.6.

What service pack are you running there ?. "Allegro - Help About".  In 17.2 there is a a couple of user preferences. Under Display you would want to verify that OpenGl is not disabled. There is also an option that adds a shape visibility box to the "Visibility pane" for your layers where by you can turn off/on the shapes. The shapes will get drawn as an outline when that option is checked in the visibility pane. Doing that may increase the
speed at which a shape can update. Perhaps you can try it.

All the best.

this link might help you.

https://community.cadence.com/cadence_blogs_8/b/pkg/posts/how-to-maximize-performance-when-your-package-layout-gets-complicated

it talks about allegro package designer but it uses the same pcb editor.

in addition, i usually set the dynamic fill not as "smooth" but as "fast" to save my time.

Thanks for answering. I'm using Allegro 17.2-2016 S059 [9/10/2019] Windows SPB 64-bit Edition. The Database Check doesn't find any errors and the Performance Advisor mostly complains about "Generated positive dynamic shape has no voids."

Out of curiosity I had run the DesignTrue DFM Wizard, which created a lot of DFM constraints. All these constraints were, however, disabled, but I will delete them and see if anything changes.

OpenGL is not disabled. I have the "shape hide" tick box in the Visbility pane, but when working with a shape I prefer to have them solid.

I will have a look at the link. Thanks.

It's not just the shapes that are suffering from bad performance. An edit of any kind may take an unacceptable long time. As an example, right clicking a pin to bring up the right click menu and then open the Edit property dialog box may take more than 30 seconds. The "progress" circle spins and spins before the dialog box is opened. Even rotating text may cause Allegro to hang for quite some time. Most of the time it recovers, but I've had a number of crashes as well.

I know this has nothing to do with your issue, but when do you have thermal relief on the Exposed pad?

Guess what I was about to change when Allegro crashed on me...