High memory usage while analyzing the classpath

[vemv]

version

Latest

platform

Vanilla JVM, and lein-clj-kondo

problem

A problem I've experienced from time to time (dating back to around 2020-21), including today in a modern project, is that clj-kondo requires too much memory usage while analyzing the classpath.

The command I've tried is:

lein clj-kondo --copy-configs --dependencies --parallel --lint '$classpath'

That requires at least 4GB memory (I didn't try a invocation that would succeed, since that would require a paid CircleCI plan for an OSS project)

repro

Can be provided on request. The target project is https://github.com/clojure-emacs/cider-nrepl - it's getting its kondo setup revamped this week.

...Most of all, I'm wondering if this also feels for you like a problem that is present and that shows up from time to time.

Perhaps this analysis could be sub-divided into chunks, such that at no point there are objects representing the whole classpath's AST (or something like that. I don't know kondo's internals off hand).

Thanks - V

[borkdude]

I wonder if disabling --parallel helps here

[vemv]

Tried just now, sadly it also failed