Re: Vector Source and QT GUI Time Sink causes performance drop

Hi,

> I also tried to add a separate path Null Source -> Throttle -> Null Sink (as seen somewhere in the Wiki), but this also didn't help. Changing sample rate of the throttle also doesn't seem to change anything.

Well this obviously wouldn't do anything ...
The throttle block needs to be in the path that processes samples ...

If you have disjoints subgraphs, they all need to be constrained.

Cheers,

Sylvain