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Created attachment 102992 [details] Profiler file I've been running NB 6.9.1 for some time now witout any issues. I recently tried to use mercurial plugin for a project and that's when I started experiencing horrendous slow downs just copy and pasting 10 - 15 lines of code. I removed the mercurial files (.hg folder etc) and tried disabling the plugin. But now I can't get it to work with other projects that are setup with svn too ... I've included the profiler file.
The snapshot shows problem with repainting like in org.netbeans.modules.editor.lib.drawing.HighlightingDrawLayer and other editor related libraries. Moving there.
The DrawEngine* classes are no longer being used (new view hierarchy is in place). *** This bug has been marked as a duplicate of bug 121357 ***