Super Slooooow parsing

[tkernstock]

Hi,
I'm using WindowsBuilder since it came out - originally I bought a version in a time when it wasn't available for free. So its a pretty long time. What I experience over the last couple of years that the parsing of my applications gets slower and slower. Today I had to wait for 4 minutes !!! until the design showed up. I'm using JFace/SWT windows!
I'm using eclipse 2024-03 under Java 17 with the latest updates. I start eclipse with -Xmx2048m and have 32GB memory in my machine.

Any suggestions?

[ptziegler]

4 minutes is certainly way above how long it should usually take. Do you have a small example where this issue can be seen, or even just a profiler snapshot to show where exactly the time is spent?

For SWT, WindowBuilder needs to allocate system resources for each widget, which could cause problems for especially large screens. But without anything to work with, I can only guess at what the actual problem might be.

[tkernstock]

Hi Patrick,

thanx for the quick reply. Since I dont have an example only productive code with a lot of dependencies, I will try to produce a profiler snapshot and come back to you a.s.a.p

[tkernstock]

Hi Patrick,

here is a Azul Flightrecorder File for 4 Minutes. The actual parsing needed 5 but I think you'll see the most import things. What I saw was a whole bunch of exceptions that where thrown during parsing. Hope this is what you needed.

flight_recording_2106Eclipse19820.zip

[ptziegler]

Hope this is what you needed.

Thanks, I was expecting something like a VisualVM snapshot, but a snapshot of the flight recorder works just as well.

What I saw was a whole bunch of exceptions that where thrown during parsing

Those exceptions are indeed something that is a reason for concerns. I get the impression that some of the plugins WindowBuilder depend on are not compatible with each other.

Looking at the error message, I assume that the version of org.eclipse.pde.build that is installed in your IDE contains the changes from eclipse-pde/eclipse.pde@00c9caf, meaning it's a version released with the Eclipse 2024-06.

But the version of org.eclipse.jdt.launching this plugin depends on doesn't contain the changes from eclipse-jdt/eclipse.jdt.debug@b9a8a81, so it's likely still the one released with 2024-03.

There should be a tab in the Eclipse IDE under Help -> About Eclipse IDE -> Installation Details -> Configuration that contains information about the current setup of your installation. Can you check what versions those plugins are?

If there is a mismatch, then I think the least troublesome path would be to install a newer Eclipse version, because trying to reliably update them afterwards is usually a real pain to do...

In short, I think the major hotspot lies with the internationalization. It looks like you are using the "classic" way to translate those strings via e.g. Messages.getString("some.key")? This mechanism is using PDE under the hood. But if the PDE installation is broken, this might cause a lot of unpredictable and slow behavior.

I've also noticed a couple of RMI threads. Is the Eclipse IDE installed directly on your machine, are you remotely connected to it or is this something completely unrelated?

I also noticed that the main thread is quite busy with loading classes. This might be related to the RMI connections or a general issue. I'm not quite sure where to put this yet.

[ptziegler]

Looking at the error message, I assume that the version of org.eclipse.pde.build that is installed in your IDE contains the changes from eclipse-pde/eclipse.pde@00c9caf, meaning it's a version released with the Eclipse 2024-06.

But the version of org.eclipse.jdt.launching this plugin depends on doesn't contain the changes from eclipse-jdt/eclipse.jdt.debug@b9a8a81, so it's likely still the one released with 2024-03.

I just remembered that the same error was reported some time ago in #865.

[tkernstock]

And here is what the window looks like. As you can see its not very lager or complex.

[ptziegler]

That's true, the window isn't overly complicated and something that I would've expected to be processed rather quickly...

[tkernstock]

Hi Patrick,
thanx a lot for your insites and help. I'm installing eclipse with the "eclipse installer" and use the "latest relase" option "IDE for Java Developers". So i guess there went something wrong in the last updates. I just updated eclipse and all plugins and now the window gets parsed in under a minute! Great
thanx again
Thomas

[ptziegler]

Happy to hear! 😄