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Overview that is opned in Navigator window by default, reduces uml repformance extrimely. bug is reproducible in ide-coke_uml-061003_6 Steps to reproduce: - extract ide-coke_uml zip. - set 'netbeans_default_options="-J-Xms256m -J-Xmx512m ....' in 'netbeans\etc\netbeans.conf' ( issue 86049 ) - create uml project (IDE with Navigator opened by default). - create class diagram - put class and enumeration elements on diagram. name them. - add 'association class' link from class to enum. - generate dependency diagram for enum (invoke 'Generate Dependency Diagram' on enum element on diagram). - go back to original diagram - select all three elements and links (class, enum, assoc. class and links). - copy them and paste on the same diagram. This Action takes about 10 sec. for me. - close Navigator window. - Select the same elemens (there are two copies already - select only one of them). - copy-paste to the same diagram. The same 10 seconds. After IDE restart it will take about 1 second. If you open Navigator window, it will take 10 seconds again. Note: Dependency Diagram generation is not necessary but makes time differences more visible.
*** This issue has been marked as a duplicate of 85996 ***
see related issues: issue 78505 - REMOTE_X: Bad perfomance with OverView Window on remote desktop issue 86026 - Overview window closing doesn't solve the performance problem issue 86044 - overview causes performance problem of elements copying between diagrams.
it was requested to set issue 85996 as verified/fixed, because exact steps provided there work well now (navigator impact on performance is not too visible). In this case current issue and related issue 86044 are not duplicates of issue 85996.
Removed the real-time updates for diagram navigator. This should fix most of the performance problems.
example steps described here highlight two issues: 1) issue 86672 - it is still reproducible and therefore is filed separately. 2) Performance problem was highly visible after Dependency diagram generation. This is now reproducible with default memory settings and before IDE restart only. part 1 is filed separately. part 2 is not actual since tspiva has suggested not to test with default memory settings. I close this bus as verified/fixed.