[Development] QVariant performance

Thiago Macieira thiago.macieira at intel.com
Mon May 16 17:22:26 CEST 2016

On segunda-feira, 16 de maio de 2016 11:52:57 PDT Sean Harmer wrote:
> We have a WIP to replace the use of QVariant on the backend of Qt 3D but it 
> would benefit all of Qt (including Qt 3D frontend to backend change
> notifications) if we can also improve the locking behaviour of QVariant. We
> have some ideas here to either use thread local storage in addition to the
> global metatype information registry and/or to use a scheme involving
> atomic compare/exchange when updating metatype registration info.

Uncontended locks in Qt are extremely cheap.

Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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