Intelli J IDEA takes forever to update indices

Question

Is it normal for Intelli J to take a lot of time (almost 12 hours) to update indices for a project? I just installed Intelli J on my machine and imported a rather large Mave

Answer 1

I guess Idea is more collecting garbage than doing useful work. Use G1 GC instead of the default.

Help -- Edit Custom VM Options

-XX:+UseG1GC

instead of

-XX:+UseConcMarkSweepGC

and of course restart Idea.

Downside: G1 tries to collect garbage before stopping the process. This is insane, but this is what it does. For a program with 16G of heap, cleaning-up took 27 minutes. So do not configure your Idea to use a 16G heap.