In sierra if you look at your hard drive storage you may see an item labeled purgeable space.
List of Macos Purgeable Space
Pics. Clear purgeable space on mac using terminal command see video how to perform the concept of purgeable space on macbook, mac was introduced back with macos sierra. With macos sierra or later, your mac automatically takes these additional steps to save storage space:
Purgeable Space Reported In Disk Utility And Finder Different Why Macrumors Forums from forums.macrumors.com
With this in mind, macos sierra includes a new feature set aimed at optimizing hard drive space. So i started searching the web about how to free purgeable space, but as i have found out the os itself another way to force remove purgeable space on mac. These are the things you forget to delete, but affect the computer's performa.
There are a bunch of features introduced in macos sierra about reclaiming hard drive space.
Purgeable space is data on the drive that sierra has determined is superfluous, and not every version of macos has needed some amount of free space on the drive to ensure smooth operation. I do not save anything with icloud. I realise there is a lot of options when it comes to macos's indication of 'purgeable space', but here goes… fact #1: With the arrival of macos sierra, apple changed how the os calculates free space on a mac.