Recently I've been googling about a problem with my MB and got very confused by the use of these terms on the internets:
- sleep mode
- hibernate mode
- safe sleep
- idle sleep
- standby mode
- poweroff mode (
autopoweroff
setting in$ pmset -g
)
I think some of them just mean the same thing, but could someone please clarify which terms are the correct ones, and what is the difference between them?
I have El Capitan on MacBook Pro 2012
Best Answer
Sleep refers to when the machine pauses processes and such but with the RAM still powered.
https://support.apple.com/kb/HT201714
Hibernation is called Safe Sleep in macOS. This is where the contents of the RAM is saved to disk.
https://support.apple.com/kb/HT202824
https://support.apple.com/kb/HT201635
Idle sleep is not a sleep mode, but rather a description of how Sleep can be activated: through the machine being idle for a set period.
https://support.apple.com/kb/HT202824
Standby mode is similar to Safe Sleep but used when your machine has an SSD.
https://support.apple.com/kb/HT202824
https://support.apple.com/kb/HT202124
pmset's autopoweroff sets the time it takes from Sleep starting until Safe Sleep is initiated.
https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man1/pmset.1.html