Operating system and graphics card Windows 7 CPU
Broken: (example: 2.7 10f4c62, see splash screen)
Short description of error
If you have a large scene, then usualy one would create small props for the scene on a different object layer; and when ready place them in the main layer. While working on a huge scene, and making a prop in another layer. I noted that if one sets the preview screen to cycles render mode.
Then despite my prop object is small, and its the only object in my viewport at layer; despite the whole scene; everything is calculated (BHV / Duplicates etc)..
It should only render those object that are on the screen in this layer, not other layers..
Exact steps for others to reproduce the error
Based on a (as simple as possible) attached .blend file with minimum amount of steps
My blend file is a bit large, but just take a huge one yourself.
Then create a simple object (monkey or so) on another layer and render that object layer.