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Created attachment 157335 [details] Pofiling dump while saving After running a application several times, editing, committing, etc. memory fills up and saving a file gets quite slow. CPU load on all cores goes to 100%. This might be a dup of #237117. Howevet, I'll attach a profileing dump of the save operation.
There are several editor document related memory leaks which should all be fixed in 8.1. EDT in the snapshot seems to spend time in ComponentUI.update() which is normally unlikely but it could possibly show up if the memory is exhausted due to the memory leaks. If possible please upgrade to 8.1. If the problem reappears in 8.1 please reopen the issue. Thanks. *** This bug has been marked as a duplicate of bug 239360 ***