The JVM has bad start up time in the context of milliseconds, but Clojures slow start up is in a different league. It loads a bunch of classes and it can take a full second.
But you're also not recompiling on code change. You're just reloading a function in the REPL. So you only have to load once and then your dev cycle is painless. But the startup time is bad for things like serverless functions unless you use something like GraalVM.
But you're also not recompiling on code change. You're just reloading a function in the REPL. So you only have to load once and then your dev cycle is painless. But the startup time is bad for things like serverless functions unless you use something like GraalVM.