indexing efficiency sources vs jars Follow

Hi,

I was wondering if there is any performance differences between indexing source files vs indexing jars.

We have a large JVM project which has many source modules A, B, C. Once imported into intellij, it takes some time to index everything.

Say we are only interested editing A and have the flexibility to load B and C as 3rdparty jars. Would it be beneficial to do so? 

Thanks,

Yi

A little bit related to https://intellij-support.jetbrains.com/hc/en-us/community/posts/207224189-How-portable-is-indexing-cache-