Page 1 of 1

Performance Issues in Large STKO Model

Posted: Sat Oct 25, 2025 3:09 pm
by Farazchanna
Hi everyone, I’m working on a large STKO model (file size 88 MB, 19,000+ geometry tags, and 2,400+ physical property tags, only beams and columns, no shear wall yet), and I’m experiencing serious performance slowdowns. Whenever I open the Physical Properties tab, it takes about 30~50 seconds to load, and any further interaction within that section causes the interface to become unresponsive for several minutes. Eventually, I have to close the program manually since no error log appears. I’m running STKO on an Intel i7-10750H (6 cores, 12 threads) with 16 GB RAM, GTX 1650 Ti, and Windows 10 Pro, I’d really appreciate any advice or suggestions on how to improve performance and handle large models more efficiently. Thank you in advance for your time and support.

Re: Performance Issues in Large STKO Model

Posted: Tue Oct 28, 2025 10:26 am
by STKO Team
can you share your model?

Re: Performance Issues in Large STKO Model

Posted: Mon Nov 24, 2025 1:57 pm
by Farazchanna
Yes, sure. Please find the files. [1] is the STKO file, [1] inside it, there are the Physical Properties. [2] is the screenshot. When I click on one property and try to assign it, STKO freezes and hangs.

Re: Performance Issues in Large STKO Model

Posted: Sat Jan 03, 2026 11:39 am
by STKO Team
The issue comes from the automatic coloring of the WorkTree items by their usage. When you have thousands of properties (especially with fiber section) it can slow down performance.

Next version of STKO will have this fixed automatically, but in the meantime you can switch it off at the application level (i.e. you need to do it everytime you open STKO as this flag will be reset) by running this simple script:

Code: Select all

from PyMpc import *
App.setColorWorkTreeByUsageFlag(False)
tree color usage.png
tree color usage.png (188.46 KiB) Viewed 253 times

Re: Performance Issues in Large STKO Model

Posted: Mon Jan 05, 2026 9:25 am
by Farazchanna
Thank you so much, It worked.

Re: Performance Issues in Large STKO Model

Posted: Mon Jan 05, 2026 11:10 am
by STKO Team
You're welcome