You can either let a backup begin on it’s own, or manually start one yourself. Using sudo requires the admin password as usual, once entered the effect is immediate. Sudo sysctl debug.lowpri_throttle_enabled=0 This is why this is not really a recommended approach, and no, this is not intended to be a solution for when a Time Machine backup is going slower than it should, which typically requires minimal troubleshooting to resolve.ĭon’t mind the caveat and potential issues with adjusting processor priority? Then launch Terminal app found in /Applications/Utilities/ and run the following command: Thus, this is why it’s only recommended for advanced users, and for limited use cases, because you could easily find yourself with all sorts of tasks taking up inordinately high CPU as a result. The way this trick works is by removing that reduced priority, but, the caveat with this approach is that it impacts more than simply Time Machine, it removes the low priority throttle from anything at the kernel level. This makes the Mac usable while Time Machine is backing up, but it has the downside of making Time Machine taking longer than it theoretically could. First, understand that Time Machine is meant to run in the background automatically, and to not be a total nuisance it runs at a reduced priority so that it doesn’t consume all available system resources to get the job done.
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