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kotlinlang

How should I interpret <https://blog.jetbrains.com/kotlin/2020/09/the-dark-secrets-of-fast-compilation-for-kotlin/> for structuring projects today? Split it into more modules? Use gradle or intelliJ internal compiler for compilation? What are some concrete tips today? I’ve set up a gradle remote build cache and use `org.gradle.caching=true`
`org.gradle.parallel=true` and `org.gradle.configureondemand=true` But I am unsure what is the path forward for compilation when working inside IntelliJ, to shorten time-to-test

split into more modules will work just by nature of compilation process, but it long term solution, essentially you should arrange your architecture around it

&gt; `org.gradle.configureondemand=true`
Doens’t improve “compilation” time, it improves configuration time, but only in some scenarious, though, it works pretty will for our project when you test particular module

if you use gradle, I would start from getting build scan what is going on on code/test change and run

we’ve done everything the build scan advises

this is more on how to shorten time-to-test for day-to-day incremental compilation work inside IntelliJ when working on a not-so-huge project (24KLOC counted with ‘cloc’)

we’ve split it into four modules which work well architecture wise but we are not happy yet

we can possibly halven the codebase size by splitting it further into two different repos (this works well also architecture-wise, it’s already done on many levels)

it would be super interesting to note at which point code base size actually is a factor for time-to-test (is the dependence totally linear on code base size since it is bound by compilation or are other things going on in IntelliJ which makes even smaller projects slow)

and also there is the choice between “Build and run using IntelliJ” or “Build and run using gradle” despite using gradle for CI

so it would be good to know which of those two choices have the best path forward for performance