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How To Speed Up A Time Machine Backup

Posted by Lou TarDisk on 2017-07-26


As a Mac user, it's important that you create a Time Machine Backup. This is essential to keeping all your data safe just in case something goes wrong with your computer. And it's one of the most important steps before Pearing your TarDisk to your Mac. However, sometimes Time Machine takes some time to complete the backup. Let's speed up that process.

You can do that using what's called the "command line".

But be careful! This change will slow down your computer's performance while Time Machine is running. The very reason this trick works is by increasing the Time Machine priority in the CPU so you will experience slower performance while executing this operation.

This is also not a solution for when a Time Machine backup is going slower than it should. That problem can be fixed with some minimal troubleshooting.

So let’s speed up the Time Machine!

To get the backup finished as soon as possible, launch the Terminal app found in Applications > Utilities and run the following command:

sudo sysctl debug.lowpri_throttle_enabled=0

This command will increase Time Machine’s priority in the CPU.

You'll have to enter your admin password to run that command. Once you enter the command, the effect is immediate and you can either let a backup begin automatically or manually start one.

I did not like this change and want to reverse it

No problem! The change can be reversed with a reboot. Alternatively, you can run the following command in the terminal:

sudo sysctl debug.lowpri_throttle_enabled=1

That will reverse the earlier command you inputted. And that's it! You'll notice that this is not a permanent change: it will be reversed every time you restart your Mac. Nonetheless, if you run this command you can save you a lot of time - and who doesn't like saving time?

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