out of memory (original) (raw)
Kevin Rushforth kevin.rushforth at oracle.com
Tue Nov 6 11:04:53 PST 2012
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Are frames being rendered during this time? If so, then you may have discovered a bug. If you have a test case you could file JIRA and attach it.
-- Kevin
Tom Eugelink wrote:
Ok, this is confusing; I've confirmed using lookup that the nodes are removed from the scene, however I end up with a dirtyNodes collection with over 23000 buttons and 15000 labels.
Every 10 ms 30 buttons and 20 labels are added... So it actually takes quite some time for this to fill up and cause the out of memory exception. Tom
On 2012-11-06 13:56, Kevin Rushforth wrote: Correct. One short-lived exception to that would be if a node was modified and then removed from the scene in the same frame. In this case it would exist in the dirty nodes list until the next synchronization pulse. -- Kevin
Tom Eugelink wrote: I figured as much, so these nodes still are part of the scene. They are not "to be removed", correct? Tom
On 2012-11-06 13:36, Kevin Rushforth wrote: The dirty nodes collection is a list of nodes in a scene that have had their state modified. It is processed and cleared as part of the node synchronization step each pulse. -- Kevin Tom Eugelink wrote: A user of MigPane reported that he ran into a out of memory exception. http://migcalendar.com/forums/viewtopic.php?f=8&t=3916&p=8717#p8717 I've created a memory dump of this and using the memory analyser tool I only see that it is being held by weak references and the scene node. Class Name | Shallow Heap | Retained Heap ---------------------------------------------------------------------------------------------------------------- javafx.scene.control.Button @ 0x319ba2f8 | 408 | 1,672 - [60490] javafx.scene.Node[98113] @ 0x29cc8810 | 392,464 | 392,464 - dirtyNodes javafx.scene.Scene @ 0x27f65d00 | 376 | 396,728 |- this$0 javafx.scene.Scene$ScenePeerListener @ 0x28003d60 | 16 | 16 | - sceneListener com.sun.javafx.tk.quantum.ViewScene @ 0x27ffb710 | 64 | 168 | |- scene com.sun.javafx.tk.quantum.PrismPen @ 0x27ffc7f0 | 48 | 2,344 | | - pen com.sun.glass.ui.win.WinView @ 0x27ff4e98 Native Stack | 72 | 480 | |- scene com.sun.javafx.tk.quantum.GlassViewEventHandler @ 0x27ffc820| 48 | 408 | |- scene com.sun.javafx.tk.quantum.WindowStage @ 0x27f694e8 | 88 | 184 | - Total: 3 entries | | |- this$0 javafx.scene.Scene$ScenePulseListener @ 0x27f6a300 | 16 | 16 |- oldScene, value javafx.scene.Node$4 @ 0x31121ca8 | 48 | 48 - Total: 3 entries | | ----------------------------------------------------------------------------------------------------------------
What is this dirtyNodes collection and when are nodes placed in it? Tom
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