whos() should print the memory usage of the objects

[ViralBShah]

Currently, whos() prints only the size of the objects in memory. It would be nice to have it print the total memory consumed by an object. This would be really useful for Array{Any}, for example. It would also be nice to have total memory utilization of all objects printed as part of the whos() output.

Is there a way to get the total memory usage by an object? I faintly remember having something like getnbytes, but can't find it any more.

[diegozea]

+1

[ivarne]

This would be great.

I found this when searching for a open PR for updating whos to the new pattern of returning an object that could be pretty printed with writemime (see: #5464). I think this issue could cover them both, as a rewrite of the printing would be necessary for this.

See also: http://stackoverflow.com/questions/21301451/get-a-list-of-current-variables-in-julia-lang

[ViralBShah]

whos does not do this, but do we have some other way to get this?

[samuela]

+1

[timholy]

Cross-referencing #7603, which claims to only need to be turned from a gist into a PR.