[Interest] Memory Leak in Qml TreeView ?

[Damien Courtois]

Hi,

I was profiling a section of my project which uses a Qml TreeView when I
noticed what seemed like a memory leak. So I created a small Qml
application to reproduce the problem, and there seem to indeed be a memory
leak in TreeView's.
The enclosed Qml file simply creates a TreeView, bind it to a
FolderListModel, and repetedly change the current folder from "C:\" to
"D:\" (I apologize to the Linux/Mac users in advance, feel free to replace
those 2 paths by some valid ones ^^)

Here is a screenshot of the resources used by the application run through
qmlscene

http://uploads.pcitron.fr/TreeViewLeak.png

Also note that when using complex delegates (which my case in my original
implementation) the problem is far worse.

So, is it something that I'm doing wrong ? Can anyone test this simple
application on other platforms to check if the same thing happen ?
Any help appreciated, thank in advance !!
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import QtQuick 2.3
import QtQuick.Controls 1.4
import QtQuick.Window 2.2
import Qt.labs.folderlistmodel 2.1

Window {
	id: root

	visible: true

	width: 500
	height: 500

	Timer {
		id: timer
		interval: 0
		onTriggered: {
			fileSystemModel.folder = fileSystemModel.odd ? "file:///D:/" : "file:///C:/";
			fileSystemModel.odd = !fileSystemModel.odd;
			timer.start();
		}
	}

	Component.onCompleted: {
		timer.start();
	}

	FolderListModel {
		id: fileSystemModel
		property bool odd: false
	}

	TreeView {
		anchors.fill: parent
		TableViewColumn {
			title: "Name"
			role: "fileName"
			width: 300
		}
		model: fileSystemModel
	}

}