Unity 5.1: LogStringToConsole takes horribly long

Hi,

I discovered some freezes of the animations in my project. I am instantiating about 20 objects at that time and thought this is the cause.
But I profiled anyway and it turned out: it is not. The problem is one console logging.

LogStringToConsole takes about 20-40 ms per logged line.
Instantiating 20 objects consumes about 7 ms on my machine.

I am using unity since version 3.5 and I don’t remember this was a problem ever in any of my projects… Is it a new Bug?
Anybody else is discovering this?

PS: It looks like it tooks longer if I log from within a coroutine…

It appears to be a new glitch; it happens to me when I set any variables in an animator. The worst part is that I’ve never actually seen a string logged to the console. I’m not sure if there’s a way to stop it, programmatically or otherwise.