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FAQ: How do I reduce the CPU usage when running a profile?

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Modified	2012-12-04
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Q: How do I reduce the CPU usage when running a profile?

There are three main ways to decrease the CPU load:

- Modify your profile and enable Expert mode (via the Click For Options button)

- Go to the Misc. page and change the Priority. By default it is set to Normal. Try changing it to Lower or Lowest (do not use Idle as that may result in the profile never being run). This won’t reduce CPU time but it will mean that other running processes will get more CPU time than SyncBack.

- Go to the Copy/Delete -> Advanced page and set the Limit the bandwidth usage to value (at the bottom on the page). What this does is specify how much of the network (in kilobytes) to use every second. By default a file is copied at maximum speed. Try setting it to 1000 (or lower or higher depending on how much CPU time you want to use and how long you want the file copy to take).

- You may want to use the command line parameter affinity (see the help file for details). This can be used to limit which processors/cores it uses on a multi-core or multi-CPU system.

Note that Compression and Encryption will always use a lot of CPU time. If CPU usage is more important, and it is an option, you should switch off compression and encryption.

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