Feature: iostats

[tripflex]

Would be nice to replace disk space with io stats like iowait or disk read and write :1

[shoeper]

+1

[PaulMaddox]

Great idea - the stats would need to be obtained via a method available on most systems (ie, use /proc rather than third party applications like iostat/sar that might not be installed).

Feel free to have a go at implementing it and submit a pull request