Hi,
...
I have read some posts about memory releasing problem by addchild and
removechild.
Here is my situation ,we developed osg app by qt in win7, we use class
ViewerWidget to adding our viewer as a qt widget.
We did a test to simply adding 50000 osg::Node to a osg::Group then
removing all nodes and the group.After first adding ,it increase about 4000K
memory ,I think it is the proper storage of 50000 osg::Node,then by the first
removing,it only decrease 400K。Then by another 50000 adding ,it only increase
400K instead 4000K,if we removing all nodes again ,it still decrease 400K.
No matter how many time we tried to adding or remove nodes ,if we keep the
max test node to 50000,It always hold the 4000K memory even we remove all
nodes.
It looks like osg still hold the first 50000 osg::Node as a Cache ，not
releasing it immediately。
But I must admit ,it do releasing the memory properly in osgViewer or
other osg examples by the same test!
We use win7 ,osg2.9.16 ,osg3.2.0,we observe memory change by windows
resource management.
Need help!
Thank you!
Cheers,
Lv
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http://forum.openscenegraph.org/viewtopic.php?p=58542#58542
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