document free requirement

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Casper da Costa-Luis 2020-03-09 23:37:24 +00:00
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@ -35,6 +35,7 @@ If format strings are added to `status-right`, they should now be visible.
`iostat` or `sar` are the best way to get an accurate CPU percentage.
A fallback is included using `ps -aux` but could be inaccurate.
`free` is used for obtaining system RAM status.
`nvidia-smi` is required for GPU information.
For OSX, `cuda-smi` is required instead (but only shows GPU memory use rather
than load).