OpenGL CPU Usage

[S6k9GNh0]

I've noticed over a period of time that DirectX seems to lower its CPU usage when idle when OpenGL uses up as much as possible over nothing.

For instance: I made a line in OpenGL using the freeGLUT library for window management and it used 70% of my CPU. I used a sprite and animation demo made in DirectX and it used less than 20%. Is this problem common? Am I doing something wrong in my simple OpenGL demo?

[helios]

I think that's a problem with OpenGL. I noticed that too while using some applications. For example, Google Earth consumes one entire core regardless of what it's doing.

[S6k9GNh0]

Then what do I do? I wanted to stay cross platform for the time being...Anyone know what's causing it at least?

[helios]

I'd use all the same. CPU usage is a small price to pay for portability.