topic Re: Windchill application restart is particularly slow in Windchill

Windchill application restart is particularly slow

HX_11259932 — Fri, 07 Nov 2025 08:22:06 GMT

I am using Windchill PDMLink Release 13.0 and Datecode with CPS 13.0.1.2

Windchill application restart is particularly slow, taking about 500 seconds. Which aspects should be optimized to improve this?

Re: Windchill application restart is particularly slow

avillanueva — Fri, 07 Nov 2025 12:34:33 GMT

Check that the database is in working order. Profiling it during startup can help spot any long running queries that could be being executed. Can you tell if its timing out or stuck for a period at a certain step? You should ensure that the system is tuned properly based on the Windchill configurator (WCA). It should have the right amount of memory to start up and operate.

Re: Windchill application restart is particularly slow

mmeadows-3 — Fri, 07 Nov 2025 12:44:26 GMT

Additionally....
Anti-virus can add a lot of overhead/delay to starting Windchill if it wasn't configured for Windchill.

Infrastructure issues that show as poor disk IO can really slow down startup.

Tomcat scans codebase for jar files on startup. Poor disk performance can make this a VERY long process.

https://www.ptc.com/en/support/article/CS344564

Re: Windchill application restart is particularly slow

RandyJones — Fri, 07 Nov 2025 14:47:17 GMT

And more "Additionally..."

See article: https://www.ptc.com/en/support/article/CS434417

I have implemented that here in our 13.0.2 production and my 13.1.2 test server.

Re: Windchill application restart is particularly slow

avillanueva — Tue, 24 Feb 2026 00:42:18 GMT

@HX_11259932, were you able to reduce start up time? Let us know what you did.

Re: Windchill application restart is particularly slow

avillanueva — Tue, 24 Feb 2026 00:56:57 GMT

Saved 100 seconds on my dev server. Any down sides?

Re: Windchill application restart is particularly slow

RandyJones — Tue, 24 Feb 2026 01:01:11 GMT

@avillanueva wrote:

Saved 100 seconds on my dev server. Any down sides?

I have not seen any downsides from this yet. If you do come across any it is easy to undo.

Re: Windchill application restart is particularly slow

jbailey — Wed, 25 Feb 2026 01:17:54 GMT

What's interesting is - I saw this issue when I was doing initial testing for upgrading to WC 13.0 from WC 12.0 before I joined PTC. It seemed to be an issue until I went to testing the production environment, where the issue went away. We had a 3 tier environment (DEV, Staging, Prod). DEV and Staging both saw symptoms of this where startup time was much longer than the previous comparable environment (Dev 12 to Dev 13, STG 12 to STG 13). Staging was set up to mirror what our production system would look like including resources. And it still started slowly. On the production VM, we didn't see the issue... and strangely enough, by the time we got to testing upgrades with what would be the prod WC 13 machines, the issues were fixed.

One thing to maybe look at is what does your security software do? We used a heuristic scanning tool (Sentinel One) and by the time we got to production, we had exceptions built in to address issues found in testing. Tools like Sentinel One inject themselves in EVERY java process unless excepted. We had many anomalies with this, that caused all sorts of performance issues