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What is the Sleepimage file?
I am short of space on my HD and find I have a huge 2GB file called “SleepImage” in the private/var/vm/ folder. It is the space the OS uses to write the contents of RAM when the machine’s in “safe sleep”, ie the one which uses no current.
What is Sleepimage file Mac?
The sleepimage is the contents of RAM saved to disk every time your Mac is put to sleep. Thus, if you battery gets critically low, you Mac can go into hibernate mode (turns off all power to RAM).
How do you delete swap files on a Mac?
Deleting any of the swapfile* files is likely to mess up your system, but you can safely delete sleepimage . However, it’s kind of pointless, it will probably be recreated the next time you put your computer to hibernation. If you really want to delete it, you’d have to use sudo rm , since root owns the file.
How do I delete swap files on Mac?
You can not delete a swap file. sudo rm does not delete the file. It “removes” the directory entry. In Unix terminology, it “unlinks” the file.
How big is the sleepimage file on a Mac?
The sleepimage file is generally the exact same size as the amount of physical RAM your Mac has. If your Mac has 2GB of RAM, the sleepimage file will also be 2GB because there are 2GB of data that need to be stored when your Mac is put to sleep. You can check the size of your sleepimage file by typing the following command into the Terminal:
How to check the size of the sleepimage?
You can check the current size of the sleepimage by typing the following command into Terminal: -rw——T 1 root wheel 1.0G Dec 3 08:55 /private/var/vm/sleepimage From this string of text, find the data that precedes the date and this will be the number that represents the size of the sleepimage.
Why do I need a sleepimage file in Windows 10?
The sleepimage file is only needed for the safe-sleep function where your data is saved to the HDD before sleeping, if you want to permanently reclaim this disk space you can do so using the following commands in a terminal window.
When to use sleepimage and swapfile on Mac?
When your computer doesn’t have enough RAM to accomodate the memory requests of all your programs (which is almost always, this is normal), it uses these files to “write out” part of what it had in RAM. The sleepimage has a very similar use, except it’s used only when your Mac hibernates/wakes up.