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Appalling race performance ubuntu 64 bit 9.0.4 - Printable Version

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Appalling race performance ubuntu 64 bit 9.0.4 - explodinghog - 08-23-2009

Hi, I am quite impressed with Vdrift, at least in practice mode. In practice mode I can set display options to 1024x768 windowed mode, lowish settings, and it works fine, at areasonable framerate, but when i go to race mode, using 3 AI opponents, the pace slows to a near slideshow 3FPS, what's going on?

My pc specs:
AMD Athlon 64 2.4ghz
Foxconn skt 939 workstation board
2GB ram
nvidia 8400GS 512mb
twin 17 inch monitors

OS:
Ubuntu 9.0.4 64bit
Compiz


Gnome desktop compiz

- joevenzon - 08-23-2009

Are some tracks better than others or are they all really slow?

Have you tried compiling with release=1? With optimizations turned on I get at least twice the framerate.

- joevenzon - 08-23-2009

One more question... can you try running vdrift with the "-profiling" argument and let me know which subsystem is taking up all of the time when you're playing with 3 AIs versus practice mode?

- Keith_Beef - 10-18-2009

And maybe try different ratings for the AI...

At Monaco, I get the profiling data below.

Practice
Quote:INFO: Profiling summary:
ai: 0.00305269 %
car-physics: 1.67252 %
car-update: 1.30249 %
collision: 0.646288 %
render: 93.8356 %
scenegraph: 0.770135 %


Race, 3 laps, 3 AI cars at 85%
Quote:INFO: Profiling summary:
ai: 1.26512 %
car-physics: 6.54937 %
car-update: 1.81151 %
collision: 2.59928 %
render: 85.2538 %
scenegraph: 0.971325 %


Race, 3 laps, 3 AI cars at 100%
Quote:INFO: Profiling summary:
ai: 1.45387 %
car-physics: 6.63526 %
car-update: 1.86139 %
collision: 2.43895 %
render: 85.0617 %
scenegraph: 1.02097 %

I seem to get around 50 - 67 fps, in all three scenarios, with an Intel Q9650 3GHz.

K.