[nitrogen]

As a Ruby and C developer, I wish there were more tools like Java's jvisualvm for realtime visualization of running systems without the overhead and forced synchronization of a debugger.

The next best thing IMO is detecting crashes and printing a stack trace, which reminds me I've been meaning to release some code I wrote that does so for C/glibc programs.

[jeremiep]

I completely agree about jvisualvm, I'm still blown away by the quality of the Java ecosystem. I've done a lot of server-side work on the JVM and it really blows away every single piece of tooling for C/C++.

While I'm no fan of the Java language, you get all these benefits for other JVM-hosted languages such as Clojure and Scala and that is fantastic. You basically get the entire ecosystem for free.