On Sunday 21 October 2007 13:37, Melchior FRANZ wrote: > * Heiko Schulz -- Sunday 21 October 2007: > > So your FGFS runs totally smooth? > > Basically, yes. Both branches. But of course, I get irregular > stutters when some new object is to be loaded, because an > MP-player joins in, or I approach KSFO and the Golden Gate > bridge has to be loaded etc. But there's no interval freezing. > (And I know the phenomenon very well. As I said, I had that > myself a while ago. Funnily, nobody else could reproduce it > back then. ;-) >
FWIW, the plib branch has a cache that keeps track of already loaded AI models. Whenever a new model is needed (either by AI or by multiplayer), already loaded models are shared; otherwise a new model is loaded. The models are not persistent, however, so that once the model is no longer needed is gets unloaded. And of course, the next time somebody joins a multiplayer session with that aircraft, it has to be loaded again. ... Considering that we have many, many shared models, it might be an idea to add a similar model cache for non aircraft models. For AI Aircraft the model loading / unloading is very noticeable, and for some of the more complex buildings / structures / airports thats also the case. That would mitigate the loading strain for these models quite a bit. Making the cache persistent would be quite trivial, and probably further reduce the model loading stutters. The OSG branch doesn't have a caching mechanism, and if I understood Mathias correctly, that would also not be necessary. I've been experimenting with that a bit yesterday, and I'm not so sure anymore that is the case. I still need to double check my notes with Mathias. In the mean time, I've been working on adding an experimental model cache to the OSG branch for (AI/Multiplayer) aircraft, and it does seem to help reduce the model loading related stutters (at least on my laptop). Again, we could expand the same caching logic to the non aircraft models, and make the cache optionally persistent. Before going into that, however, I'd like to compare notes with Mathias. Cheers, Durk ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
