Compiler performance

1

Hello all,

how do you feel about the performance of the Kotlin (M5.1) compiler?

I am evaluating Kotlin M5.1 in a small project (currently about 15-20 classes). Hitting Build => Rebuild Project takes 11-14 seconds on a decent developer MacBook Pro Retina (2,6 GHz i7 CPU, 16GB RAM, SSD, JDK 7 current IntelliJ 12).
Is there something I can do to improve the compiler performance?
Or may I expect noticeable improvements in the future?

The Kotlin FAQ (http://confluence.jetbrains.com/display/Kotlin/FAQ) claims

The main design goals behind this project are [...] that compiles at least as fast as Java, [...]

At least for now, this goal has not been met. Or is it just my setup?

Thanks for any input,
Sascha

2

We are not at all satisfied with the performance of present compiler. It is not your setup, but neither is it the design of the language. Quite a few improtant optimizations are yet to be implemented. Hopefully, we can complete them soon.

3

I was about to ask a question similar to @nanosk’s and then I found this thread. Is the same thing true today with the 1.1-M04 kotlin?

In one case I’ve got 48 files and about 6000 lines (not sure what percent comments) compiling in about 12 seconds. (gradle compileKotlin). Computer is a late 2011 Macbook Pro with 10GB RAM.

Rob