The documentation regarding how Qt allocates storage dynamically using containers such as QString, QByteArray, and others is extremely out of date.

Here are the docs: https://doc.qt.io/qt-5/containers.html#growth-strategies

The claim is that memory is allocated in 4KB pages after a certain point. 

However, according to this commit, Qt switched over to using power-of-two allocation like many other languages/implementations use today. See here: https://github.com/qt/qtbase/commit/fb8be9905d5f3216edc3fbb72b8ce1c380737eac

It was misleading to me at first since I was wondering how allocating in 4KB pages would be any better than doing a power-of-two allocation.