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kotlinlang

Hi all.
I was wondering what are your usual build times for KMP projects?
We have around 270 shared modules for SwiftUi app and the release build time currently takes around 2 hours. (debug build is much faster, like 10-20min)
We use cocoapods, the modules vary from little ones (with 2 classes to bigger ones 100+-classes).
The step that takes almost all time is
./gradlew -p shared :kmm:sharedKmm:syncFramework -Pkotlin.native.cocoapods.platform=iphonesimulator -Pkotlin.native.cocoapods.archs=arm64 -Pkotlin.native.cocoapods.configuration=Release
I wonder if such build times are normal, or if there is something we can do to speed it up.

Have you seen this: <https://kotlinlang.org/docs/native-improving-compilation-time.html>?

also in 2.2.20 release we finally will add support for <https://kotlinlang.org/docs/gradle-compilation-and-caches.html#build-reports> for Native part. It would be nice if you could shared them to us once you will update you project to this release

Build reports for native part sounds cool. Definitely will look into it once possible. I will look into the page for improving compilation times as well. Do you think this build times are far too high than expected?

Hard to tell without build metrics. This is a release build where much more is optimized. Plus we don't know amount of code you have in the project

<@U58GRE73J> is it possible to try this kotlin native build reports in 2.2.20 beta?

Beta1 has a problem on the Native compiler side which is fixed in Beta2, so please try in the next beta

Hello I tried in Beta2 and I see following times

```Task ':kmm:sharedKMM:linkPodReleaseFrameworkIosSimulatorArm64' finished in 17,699.94 s
Time metrics:
  Total Gradle task time: 17,699.94 s
  Spent time before task action: 0.11 s
  Run compilation in Gradle worker: 5,139.18 s
    Run native in process: 5,139.18 s
      Run entry point: 5,139.17 s
    Compiler initialization time: 0.17 s
    Compiler code analysis: 0.35 s
    Compiler translation to IR: 10.54 s
    Compiler IR lowering: 20.38 s
    Compiler backend: 5,107.70 s
Size metrics:
  Start time of task action: 2025-07-31T21:27:49```
Is this the kotlin native build report or is there something more somewhere? At the moment I see almost all time is taken by Compiler backend

yes, this is the report. You could try to enable JSON format and share it with us