I’ve been working on a Gradle plugin to run benchmarks, including pure Java projects and with Kotlin (with JMH), Kotlin Multiplatform projects (JVM, JS and Native). It’s still early stage, but if you need to run benchmarks for multiplatform projects, that’s basically your only option as of now 🙂
https://github.com/orangy/gradle-benchmarks
Give it a shot and send feedback my way or in GitHub issues.