System Lens是一款小巧的Mac OS X资源优化工具，可以监控Mac上所有程序占用资源的情况，根据高中低三种级别来区分，用户可以在SL的菜单里对任意程序进行关闭操作，以达到资源释放，节约电量的目的。
– Easily check your system usage at a glance from the status bar.
– See which applications are heavily using resources.
– Quickly end programs you no longer want running.
– Highly customizable.
Heavy resource usage can sometimes cause your Mac to get warmer, slower and sometimes even cause your battery to drain faster.
System Lens sits quietly in your Menu Bar and periodically updates itself to display the amount of resources being used by your Mac.
Click on the Menu Bar icon to bring up the System Lens panel which sorts all of your running applications by their amount of resource usage. From here, you can decide which applications you don’t need open anymore and close them right from the Menu Bar. (Just make sure you save first!)
System Lens is also feature packed: set filters, custom usage thresholds, customize your results and more!
Requirements: OS X 10.7 or later, 64-bit processor
App Store: https://itunes.apple.com/us/app/system-lens/id484868989
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