[Qt-interest] QQueue / QList memory allocation behaviour

Schimkowitsch Robert Robert.Schimkowitsch at andritz.com
Mon May 16 08:13:09 CEST 2011


I have a QQueue<MyClass*>, or a QList<MyClass*> where I mainly append at
the end, and remove in front.
Let's assume I start out with the maximum size of Queue or List, and
then let it shrink and grow as needed, but never beyond the original
size.

Will it perform new and delete operations continuously, once in a while,
or will it only re-use already allocated memory?

The question behind this: Will I create memory fragmentation when using
QQueue / QList in this fashion in multiple threads?

Robert


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