You may care about software performances on a Mac. At this time, there is a idea monitor software for Mac if you are concerned with your RAM disk / CPU / GPU / hard disk / Process or Data Flow on your mac. The free software for Mac: atMonitor will help you handle all this works.
atMonitor can monitor all system properties and then display them on the desktop with a cool appearance.
In the atMonitor window, you can find all system properties include RAM storage, CPU performance, hard disk volume, processes or data flow. This software contains a powerful manage function which can help your manage RAM storage or tasks. You can even custom software behavior. www.itgeeg.com
For example, you can set a auto storage clear up task when a software used more than 200MB storage.
Download atMonitor for free here.