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First of all, the the overall power consumption will be likely the same or more if you artificially slow down the backup process. Simply because the total number of operations is the same and if the process takes longer, the cpu consumes less peak power but over a longer time. For example, if the process runs for 10 s at peak power of 200W this will consume ...


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One approach would be to use parallel compression in order to use all of the cores of your system and therefore reduce the compression time. It won't reduce the load on your system, but it will be loaded for a shortest amount of time ! You can find how to do it in this Q/A for example : utilizing-multi-core-for-targzip-bzip-compression-decompression For ...



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