Hi all,
I am curious if any observed a possible performance regression since 5.4.3? Issues I ocassional face are in Classic UI:
- Node Config with MUI style takes several seconds to load (no processing running in the background but data set is rather large)
- Overall UI (CUI) feel laggy, i.e. when opening a componen, when data is beign processed
- Clicks in the workflow area have a significant delay
It is painfull (yet) but noticably and slightly annyoing. @MartinDDDD you mentioned soem days ago that the UI is laggy too, didn’t you?
Here a recording that, hopefully, shows the laggy behavior. Memory isn’t fully utilized, CPU cores aren’t either. But rendering of UI is done on a CPU which might be “under pressure”.
Best
Mike
Hi Mike,
I experienced something similar, but was not able to reproduce it.
I actually just had a very small workflow (prep for KNIME 101 Webinar on Data Apps…) so very light data input, data transformations etc… in modern UI when executing just a chain of 5 nodes, only simple stuff like filtering a data set, using column expressions for calculations the node execution took what felt like ages…
As I said was not able to reproduce it, but will keep an eye on it and grab logs in case it happens again…
Is there a possible memory leak? My workflow, which crunched data until recently, was reset and I ran several garbage collection iterations and reset all. Only after closing Knime the memory gets freed up.
250331 Knime threaddump topic 87394.tdump.txt (88.7 KB)
I created a head dump (17G) which I can share if needed.
PS: It seems that data is still hold in the memory despite that I engineered the workflow in such a fashion that all data is processed in chunks, written to disk and garbage collection triggered frequently 
The byte object I assume contains the data of the tables I wrote to disc.
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