First of all, sorry about my english i hope u all can understand it So, i install Yosemite on my MBP. ( http://puu.sh/clc6J/5d5c565d41.png ) The problem is my Ram, i use the "Memory Clean" app and is always arround 200 and 50mb free. Photo --> http://puu.sh/clchV/4ad36f8d38.png With mavericks i use to had between 1gb - 700mb. When i ask a friend with a MBP with 2gb RAM he told me it works better than mavs. Any help?