Hi My app deals with an object tree that can have millions of leaves. It is possible to run an operation on all of them. Each will register its own change with the undo manager. The hole operation might tale a few second (the last line in the trace below). But after my operation is finished, there is another operation triggered by the system that takes much longer than the original task and it blocks the UI. It is directly linked to the undo registration, if I disable it, this does not happen.
Running Time Self (ms) Symbol Name 26258.0ms 81.3% 0,0 _dispatch_mgr_thread 0x4ef18d 26258.0ms 81.3% 0,0 _dispatch_mgr_thread 26258.0ms 81.3% 0,0 _dispatch_mgr_invoke 26250.0ms 81.2% 0,0 _dispatch_mgr_queue_drain 26248.0ms 81.2% 48,0 _dispatch_queue_drain 26168.0ms 81.0% 1,0 _dispatch_client_callout 26141.0ms 80.9% 97,0 _dispatch_source_set_timer3 25561.0ms 79.1% 25561,0 _dispatch_timers_update 481.0ms 1.4% 8,0 _dispatch_resume_slow 2.0ms 0.0% 2,0 _dispatch_queue_wakeup 8.0ms 0.0% 0,0 free 6.0ms 0.0% 6,0 dispatch_release 6.0ms 0.0% 6,0 _os_object_release 4.0ms 0.0% 4,0 dispatch_resume 1.0ms 0.0% 1,0 nano_free_definite_size 1.0ms 0.0% 0,0 <Unknown Address> 12.0ms 0.0% 12,0 OSAtomicEnqueue 9.0ms 0.0% 4,0 gcd_queue_item_complete_hook 6.0ms 0.0% 1,0 _dispatch_continuation_free_to_cache_limit 3.0ms 0.0% 2,0 _dispatch_introspection_queue_item_dequeue_hook 1.0ms 0.0% 1,0 DYLD-STUB$$free 1.0ms 0.0% 0,0 <Unknown Address> 2.0ms 0.0% 2,0 _dispatch_introspection_callout_return 7.0ms 0.0% 6,0 _dispatch_cache_cleanup 1.0ms 0.0% 0,0 _dispatch_timers_run 4162.0ms 12.8% 0,0 Main Thread 0x4ef176 Does anyone has an idea what’s going on? Thanks Georg Seifert Xcode 7.2 on MacOS 10.10.5, 27" Retina-iMac. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
