[ink-splatters]

You can tune java runtime in many ways, achieving impressive throughput/latency for your type of workload.

Next to none of them will get you nearly as good cold start times as of native app, if using free java.

There was GraalVM and its ecosystem which included Java Native Image - first thing I’d evaluate if thought about non-server side, performant Java application.

But it all had been sadly swept away by Oracle from free tier.

[flossly]

I use GraalVM and Native Image now and while the project --a small CLI tool-- is tiny (2kLOC with mainly AWS-SDK deps) the compile times are huge (~3 minutes), the OS-dependencies many (so much I use a build container to ease the burden of installing all) and the resulting binary is huge (~60MB).

But then it distributes as one binary and starts in milliseconds.

Rust would have been a better fit (cargo-and-done, smaller binary, quicker to compile); but I wanted to use Kotlin as we use in all other projects.

[gf000]

It hasn't been swept away by Oracle, far from it. It's development is just no longer coupled to the OpenJDK release cycle, which benefits both projects.