Info on the memory
Memori Fisik: Jumlah RAM yang diinstal.
Memori yang Digunakan: Jumlah RAM yang digunakan dan langsung tersedia.
Memori Berkabel: Memori yang tidak dapat disimpan dalam cache ke disk, jadi harus tetap berada di RAM. Memori ini tidak dapat dipinjam oleh app lain.
File yang Dibuat Cache: Ukuran file yang dibuat cache ke memori yang tidak digunakan untuk meningkatkan kinerja.
Swap yang Digunakan: Jumlah ruang di disk mulai Anda yang digunakan untuk menukar file yang tidak digunakan ke dan dari RAM.
Page ins/Page outs: This refers to the cumulative amount of data moved between RAM and the Mac's hard disk.
Tip: Page outs occur when the Mac has to write information from RAM to the hard disk (because RAM is full). Adding more RAM may reduce page outs.
Active: This information is in RAM and has been recently used.
Inactive: This information is in RAM, but it is not actively being used; it was recently used.
For example, if you've been using Mail and then quit it, the RAM that Mail was using is marked as inactive memory. Inactive memory is available for use by another application, just like available memory. However, if you open Mail before its inactive memory is used by a different application, Mail will open quicker because its inactive memory is converted to active memory instead of loading it from the slower hard disk.
You can use the Purge button to remove the information in the inactive memory.
While purging the inactive memory, the Finder may slow down and not respond for several seconds.