performace issues

[joevenzon]

so, it looks like at high resolution the textures don't all fit in my card's memory (I have an NVIDIA Quadro FX 570M/PCI/SSE2 with 256MB of memory) so the card has to load and unload textures as i go around. it is this loading/unloading that's causing the stuttering (which didn't use to happen before some point). i don't know if there is any explicit management of handling textures in vdrift, but if there is this is the most likely culprit. if not, then it's probably the nvidia driver or the x-server.

Yep, I think you've figured it out. VDrift doesn't have any texture management at the moment, it just tries to load everything in, and if it doesn't fit, then it's up to the driver to figure out what to do. In most cases I've seen, drivers will try to swap textures back and forth from GPU memory to main memory as they're accessed, which usually results in the low framerate behavior you described.