GDB consumes alot of ram

Not sure where to post that. But problem was fixed by disabling "std pretty printers" and "Use debug helpers".

Problem was that, stepping into:

template <class Src>
Src mirrorOnMid(const Src& src)

template <class Src>
Src convertPositionToInternalRep(const Src& src)

auto tree = iInstanceMapWmoTrees.find(map); if (tree != iInstanceMapWmoTrees.end()) { pos = convertPositionToInternalRep(pos);

last operator - gdb was hanging forever and draining 16GB ram+ then killed by system. I saw similar bug report here: https://bugs.archlinux.org/task/57924

So, it seems it is qtcreator bug kinda. When those 2 checkboxes are off - it works smooth again.

Btw, if you ask me, I'm using non-standart allocators, i..e boost ones., see screenshot when all fixed already