> Actually, everything's a little slower with Qt5. Is C++11 enabled by
default? Could that be the cause of degraded performance?

>
> Qt 5 uses RB tree in QMap
>

Ah! That explains similar performance of QMap with std::map (though
iteration is slower than std::map).

But why was RB tree used when it doesn't as well as the previous skiplist
based impl?

-mandeep



>
> --
> Regards,
> Konstantin
>
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