cloudd consuming all my bandwidth
I had a problem with this process running on my activity monitor and it was abusing my internet bandwidth, and I was going crazy with it, the only thing that solved my problem was wiping out my hard drive and installing Mac OS from scratch, but than the problem returned again after about a month or two.
after lots of phone calls to Apple tech support and an amazing senior advisor called Erik that problem has been solved, it seems like a file was stuck syncing to iCloud, I could have seen it in the finder (the bar was stuck on filling up the circle) and when I looked at it it was a 65 GB of a file stuck there (not that I knew what it was, neither I had any file with that size syncing) but we logged off my iCloud on my MacBook Pro (deleted all) and when we logged back on everything that was on iCloud synced back and the problem was solved!
so if anyone of you is having that problem, please note that logging off and back on to iCloud solves the problem.
Good luck :)
MacBook Pro 15″, OS X 10.11