What is general requirement of PC to open a large project (like Kotlin itself) in Intellij? Seems the intellij is eating so much RAM ~2.8GB but still not able to index anything (only getting purple-white highlighted).

I have the same problem. I allocated 4GB memory to it and still it can't figure out anything. it stalls everything. I'm using gradle projects. really frustrating.

From what I understand this is a known issue with kotlin that wont be fully resolved until the new frontend compiler is released

Any references @Colton Idle? Intermediate Representation seems experimental, would go through alpha-beta-stable, so shouldn't come into stable existence anytime soon...

Experimental IR which you talking about is not related on performance on which Colton is talking about, it's BE IR, but performance improvement will be available on Frontend IR

So syntax highlighting and indexing is limited by the compiler atm 👀

2.8 probably is not enough for such project as Kotlin. If never finish indexing, it anyway a bug and worth to report

2.8Gigs is taken by Intellij steadily after first minute actually, I waited for about 4 mins 😛 (probably should waited for more). That's why I actually asked for the general approximation that it need to properly highlight things -> For how much should I increase the heap size?

For comfortable work with Kotlin project I usually give 8 GB of heap to IDEA. Usually (when everything already indexed and persisted on disk) there are only ~2 GB consumed. But it raises to 5-6 when I open another IDEA window with same project on other branch *I just opened IDE and it consumes only 630 MB. But it's without any actual work today Update: after few hours of work IDEA consumes ~2.5 GB in idle state and ~4.5 GB when running tests