Memory Leak in Play Mode

80 GIGS OF DATA?

That's impressive. Unity always takes a bit extra time to go into play mode the first time after you start it, but this is a bit overkill.

EXACTLY! 80 GB of data. I have no problem on Windows 7 32 bit. Going into Play $$anonymous$$ode is much more quickly. When I start Unity and no in Play $$anonymous$$ode, Unity uses over 600 $$anonymous$$B of memory. As soon as i click Play, the memory is going up slowly. About 2 $$anonymous$$B per second. I am forced to wait until the memory will go to 2.7 or 2.8 GB to be in Play $$anonymous$$ode. It lasts a long time. I think the problem is in Windows 64 bit, because Unity is 32 bit, so there's time needed for translation. But it's too long. I don't know maybe the stable Unity 3D 4.6 will be faster. i hope Unity 5.0 64 bit will solve all such problems.

Now Unity is going into Play $$anonymous$$ode in 35 $$anonymous$$utes and with 2.2 GB of memory. It's still too long I think.

How long is your startup time when building?

It's pretty hard to say if this is a bug in Unity or if it is one of your assets as we don't have any information from you except that your project is 80 GB big.

I'm not sure I understand you correctly. Is Unity using up that much memory before Play mode starts and once Play mode is actually done loading the memory gets freed?

What kind of assets are you using that your project is so big? Are your models fbx files? Do you have modeling software on your PC but not on your laptop or to make the question more general: Do you have the exact same software on your laptop and your pc installed?

If the memory goes down after Play mode starts then I don't think that this is a memory leak but ins$$anonymous$$d Unity is importing some of your assets or recompiling the code or whatever. Especially because you said that the memory usage goes up by around 2$$anonymous$$B/sec which might be the speed your harddrive is loading the data into memory.

You would need to profile the editor somehow to know where the memory usage comes from but I don't know if that is possible. You might want to ask the Unity tech support.