Comment by rigonkulous

Indeed, the glibc test suite .. plus a suite of BPF scripts for instrumenting .. can provide a great deal of information about how things are running in a target OS .. if you give a process its own filesystem and then rig up a bpf console with some hot gnuplot, you can get some very significant details, at the i/o level, about the heuristics of an application, library, user-space module/plugin, etc...

It used to be you had to wade through massive logs though, if you don't get things quite tweaked - but in the AI/ML agent sense of things these days, just describe what you need, FUSE the right nodes, and run the bpf scripts, yo ..