CUDA performance on Linux CUDA, Ubuntu, x64


Anyone has the following synopsis?

I am using Geforce GTX 260m on both Windows 7 x64 and Ubuntu 9.10 64-bit.

Comparing the same CUDA codesample on both platforms, I find that the same sample (say, simpleTexture3D) running on Ubuntu is not as smooth as the one running on Windows. The frame rate indicated on Ubuntu is about 60 - 70 fps, whereas it is about 60 fps on Windows. Sometimes a code sample freezes display on Ubuntu. (I was reminded by someone that setting an OpenGL swap option in Ubuntu alleviates the freezing problem. And it works.)