here we go again :)
I don't know where is the problem but scene saving time is about 1 min (or more), here is some images:
Image above is when not saving and image below when is saving (in this case CPU2 100% busy):
In scene is just simple mesh (Verts: 71, Edges: 111, Faces: 42, Tris: 138) and WorldEnvironment node with some basic images as skybox.
OS Linux Mint 17.2 64-bit
RAM 8 Gb
sometimes change a little bit of code and trying to run game and before run its saving, bit annoying to wait about 1 every time and this happens just with main scene. maybe some one know where is problem?