Re: memory usage

[Alexis <flexibeast@xxxxxxxxx>]

Ray Andrews <rayandrews@xxxxxxxxxxx> writes:

> Is there some way of measuring zsh's entire footprint in 
> memory?  I
> mean at creation of a shell, not while running anything.

You could use ps(1). Inside the shell, you could run:

 $ ps -q $$ -o comm,rss,vsize

where `$$` is a reference to the `$` variable, which contains the 
PID of that shell. Outside that shell, replace `$$` by the PID of 
the relevant shell as found by other means (e.g. via pgrep(1)):

 $ ps -q 1234 -o comm,rss,vsize

Here's an article explaining 'memory usage' as represented by 
vsize/vsz and rss:

 https://linuxconfig.org/ps-output-difference-between-vsz-vs-rss-memory-usage


Alexis.