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Creating a new folder in a web project of ~3200 source files often takes more than half of a minute with disk activity led flashing and memory usage showing spikes.
Created attachment 49835 [details] Thread dump while waiting for a new folder to be created 1
Created attachment 49836 [details] Thread dump while waiting for a new folder to be created 2
Created attachment 49837 [details] Thread dump while waiting for a new folder to be created 3
Umm.. I have just noticed that upon creation of a new folder in Files view, it automatically shows all project's packages (which I very rarely do manually, as I know it's slow). While I'm not sure this is the only reason for the slowdown, it definitely contributes to it. I've just restarted the IDE and expanded the packages list manually - subsequent creation of a folder didn't cause any slowdown at all.
PackageView problem. Probably same as issue #117179 PackageView is maintained by Milan.
Probably the same cause. *** This issue has been marked as a duplicate of 117179 ***