I am messing around trying to find the best graphics solution for my Laptop with Optimus Nvidia. (ASUS K55VD)
I've got bumblebeed running and i use optirun when i want to improve graphics performance. The only problem is that i dont know if it is really working.
When i execute eg. glxgears i get the following performance results:
normal glxgears on intel graphics: arround 60 FPS
optirun glxgears on nvidia graphics: arround 1300 FPS
Well this looks fine i guess..
My wondering starts when i execute with vblank_mode=0 in front of both the commands:
vblank_mode=0 glxgears gives: arround 5000 FPS
vblank_mode=0 optirun glxgears gives: around 1400 PFS
Why am i getting such weird results?