Re: [Speed-dreams-devel] Aero.cpp - towards simuv2.1

[Mart K. <ma...@ke...>]

Hello Xavier (and others),

On Sunday 02 May 2010 13:23:09 you wrote:
> Hi Wolf-Dieter,
> 
> yes and no. Pass GLUT to SDL we have loose some fps.
> I think that Brian work on migrate OSG (OSG is multithread for graphic
> but not for other code)
> FlightGear has migrate there is 2 years now and one CPU is used for
> other code than OSG.
> 
> My modification for sky take more fps too (it's why, I have put
> activate/desactivate ssgsky)
> 
> But in SD, it's module Simu take more times (take 1000 times per
> seconds), so I think is a good idea to put simu or robot code in
> multhread. So just a question : simu is called by each cars on track or
> called for all cars.
> If it's called by each car, is good idea to do simu module in
> multithread (with one thread create by car) if not, so do robot module
> in multithread. But I don't know well simu module, so I don't answered
> at this question.

Simu is called once by the raceengineclient. Then simu has some calls which 
are specific for every car (and can be multithreaded, I think). And after that 
there is collision detection. I did some performance checks on Speed Dreams 
some time ago, and if I remember it correctly, the collision detection takes 
quite a significant amount of time (simuv2).

> Cheers
> 
> Xavier

Regards,

Mart