Re: [Flightgear-devel] Designing a thread-safe property tree API

[Thorsten R. <tho...@sc...>]

> Your experience here may be skewed as you have an nvidia graphics card  
> and the
> proprietary nvidia drivers push lots of work into different threads. The  
> free
> radeon drivers on the other end of the spectrum won't do that and  
> instead run
> lots of somewhat inefficient code in the same thread that does the OpenGL
> calls. So even on a Core i7 3770K FlightGear has a hard time fully  
> utilizing a
> Radeon R9 270X for example (radeontop is a nice tool btw.).


Thanks - that actually looks like a very interesting piece of the whole  
puzzle.

My whole is not that we shouldn't try to optimize anything. Sorry if that  
came across that way. The point is that despite a fairly wide-spread  
belief I've seen in the forum that utilizing multiple cores better is a  
cure for everything, I suspect that won't help for a large class of cases  
at all.  Call it expectation management. And that we shouldn't lose sight  
of other bottlenecks.

(I'd still like to have more good test data though...)

Cheers,

* Thorsten