Improve the psutil builtins

[rokostik]

Changes

• import github.com/shirou/gopsutil/v3 to use the latest version of the library

• move psutil to devops context

• new functions

  • host-info?
  • users?
  • load-avg?
  • disk-usage?
  • processes?
  • process

Where data is not available (usually because of lack of permission if not running under root) ??? is displayed instead.

I opted to use boxed types everywhere (just feels more appropriate to me). Although processes? takes a few seconds on my machine so if it needs to be fast I can change it to use unboxed types to construct the spreadsheet.

[refaktor]

Wow, that was really fast! Cool, I will try to test it a little and maybe prepare a little demo.

I haven't tested this but I suspect processes? takes few seconds because of OS reasons, I doubt boxing would affect this unless we arrive in the range of around at least 100k values.

[refaktor]

@rokostik Do you think there are more useful functions in gopsutil library? Also if you have any ideas for other "devops" related go libraries let me know.

[rokostik]

I haven't tested this but I suspect processes? takes few seconds because of OS reasons, I doubt boxing would affect this unless we arrive in the range of around at least 100k values.

TBH I haven't measured it but that would make more sense yes.

Do you think there are more useful functions in gopsutil library?

One thing that I think would be usefull is process management (stop, kill, etc.)